Denso Spark Plug IT16#4

XPart Number XP10115419

Price: $16

Available by special order

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Frequently Bought Together

AUTOMOTIVE PART

Denso Spark Plug IT16#4

Spark Plug, Iridium IT16, Iridium Power

Part IT16#4DensoSpark Plug

Match your exact vehicle configuration to the verified applications below.
Confirm the year, make, model, engine, drivetrain and required position before ordering.

Is This the Right Part?

Manufacturer Part NumberIT16#4

ManufacturerDenso

Part TypeSpark Plug

Part Details

Part Specifications

Center Electrode Core Material	Copper
Center Electrode Tip Material	Iridium
Ground Configuration	Standard
Ground Electrode Core Material	Nickel
Ground Electrode Quantity	1
Ground Electrode Tip Design	Tapercut, U-Groove
Hex Size	16.0 MM
Manufacturer Heat Range	16
Pre-Gap Size	1.1 MM
Prop65	NA
Reach	18.00 MM
Resistance	5000 ohms
Seat Type	Tapered
Thread Diameter	14.00 MM

Verified Vehicle Fitment

Make: Buick, Cadillac, Chevrolet, Ford, GMC, Hummer, Isuzu, Jaguar, Lincoln, Mazda, Mercedes-Benz, Mercury, Merkur, Oldsmobile, Pontiac, Saab, Saturn
Model: 257 verified models — see exact combinations below.
Years: 1974–2019 — varies by model and configuration.

Check before ordering: Match the year, make, model, position, and every engine, transmission or other restriction in the same row. Listed years do not apply to every model.

View vehicle applications (734 configuration groups)

Years	Make	Model	Position	Engine / transmission / notes
1993–1994	Buick	Century	—	Engine: 2.2 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–2005	Buick	Century	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987–1989	Buick	Century	—	Engine: 2.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1994	Buick	Century	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1989–1993	Buick	Century	—	Engine: 3.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–1988	Buick	Century	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995–1996	Buick	Century	—	Engine: 2.2 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995–1996	Buick	Century	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1994–1996	Buick	Commercial Chassis	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1990	Buick	Electra	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–1989	Buick	Electra	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005–2009	Buick	LaCrosse	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2008–2009	Buick	LaCrosse	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1991–2005	Buick	LeSabre	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986	Buick	LeSabre	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–1989	Buick	LeSabre	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1990	Buick	LeSabre	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2009, 2011	Buick	Lucerne	—	Engine: 3.9 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2009, 2011	Buick	Lucerne	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006–2008	Buick	Lucerne	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2010	Buick	Lucerne	—	Engine: 3.9 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006–2008, 2010	Buick	Lucerne	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1991–2005	Buick	Park Avenue	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004–2005	Buick	Rainier	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988–1991	Buick	Reatta	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988–1990, 1994–2004	Buick	Regal	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1991–1993	Buick	Regal	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2002–2003, 2007	Buick	Rendezvous	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004–2005	Buick	Rendezvous	—	Engine: 3.4 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006	Buick	Rendezvous	—	Engine: 3.5 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–1993, 1995–1999	Buick	Riviera	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1994–1996	Buick	Roadmaster	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1989	Buick	Skyhawk	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988	Buick	Skyhawk	—	Cylinder Head Type: SOHC; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987	Buick	Skyhawk	—	Aspiration: Normal; Cylinder Head Type: SOHC; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995	Buick	Skylark	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1998	Buick	Skylark	—	Engine: 2.4 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–1988	Buick	Skylark	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995–1998	Buick	Skylark	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1989, 1991	Buick	Skylark	—	Engine: 3.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1994	Buick	Skylark	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1994	Buick	Skylark	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1990, 1992–1993	Buick	Skylark	—	Engine: 3.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–1987	Buick	Somerset	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1985	Buick	Somerset Regal	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005–2007	Buick	Terraza	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1993	Cadillac	60 Special	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987–1993	Cadillac	Allante	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–1991, 1994–1996	Cadillac	Commercial Chassis	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1985	Cadillac	Commercial Chassis	—	Engine: 4.1 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1992–1993	Cadillac	Commercial Chassis	—	Engine: 4.9 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004–2005	Cadillac	CTS	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006–2007	Cadillac	CTS	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–2005	Cadillac	DeVille	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1983–1985	Cadillac	DeVille	—	Engine: 4.1 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1982	Cadillac	DeVille	—	Fuel Delivery Type: FI; Fuel Type: Gas; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006–2010	Cadillac	DTS	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2011	Cadillac	DTS	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–2002	Cadillac	Eldorado	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1983–1985	Cadillac	Eldorado	—	Engine: 4.1 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1982	Cadillac	Eldorado	—	Fuel Delivery Type: FI; Fuel Type: Gas; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999–2000, 2006–2008, 2010, 2012–2014	Cadillac	Escalade	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2002–2005	Cadillac	Escalade	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2009, 2011	Cadillac	Escalade	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2011, 2013–2014	Cadillac	Escalade ESV	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2013	Cadillac	Escalade EXT	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987–1992, 1994–1996	Cadillac	Fleetwood	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1983–1985	Cadillac	Fleetwood	—	Engine: 4.1 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1982	Cadillac	Fleetwood	—	Engine VIN: 8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986	Cadillac	Fleetwood	—	Engine: 4.1 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–2004	Cadillac	Seville	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1983–1985	Cadillac	Seville	—	Engine: 4.1 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1982	Cadillac	Seville	—	Fuel Delivery Type: FI; Fuel Type: Gas; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004–2009	Cadillac	SRX	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005–2007, 2010	Cadillac	STS	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2008–2009	Cadillac	STS	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004–2005	Cadillac	XLR	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006, 2009	Cadillac	XLR	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007–2008	Cadillac	XLR	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2005	Chevrolet	Astro	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007–2008, 2011–2013	Chevrolet	Avalanche	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2009–2010	Chevrolet	Avalanche	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2002–2004, 2006	Chevrolet	Avalanche 1500	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2002–2006	Chevrolet	Avalanche 2500	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987–1988	Chevrolet	Beretta	—	Engine: 2.0 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1993	Chevrolet	Beretta	—	Engine: 2.2 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987–1988	Chevrolet	Beretta	—	Engine: 2.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1993	Chevrolet	Beretta	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1989	Chevrolet	Beretta	—	Engine: 2.0 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1990–1992, 1994–1996	Chevrolet	Beretta	—	Engine: 2.2 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1989	Chevrolet	Beretta	—	Engine: 2.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1990–1992, 1994–1996	Chevrolet	Beretta	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2005	Chevrolet	Blazer	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1998	Chevrolet	C1500	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999	Chevrolet	C1500	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1998	Chevrolet	C1500	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1998	Chevrolet	C1500	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1999	Chevrolet	C1500 Suburban	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1998	Chevrolet	C2500	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	Chevrolet	C2500	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	Chevrolet	C2500	—	Engine: 7.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1999	Chevrolet	C2500 Suburban	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1999	Chevrolet	C2500 Suburban	—	Engine: 7.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	Chevrolet	C3500	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	Chevrolet	C3500	—	Engine: 7.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	Chevrolet	C3500HD	—	Engine: 7.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2002	Chevrolet	C3500HD	—	Engine: 8.1 V8; Gap 0.044, Iridium Power Performance Upgrade With World's Smallest Center Electrode 0.4 mm Dia. & Tapered Tip Patented U-Groove Design & Patented Ir Alloy 90% Ir
1995–2000	Chevrolet	Camaro	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2012–2014	Chevrolet	Camaro	—	Aspiration: Normal; Engine: 6.2 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1993–2000	Chevrolet	Camaro	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2010–2011	Chevrolet	Camaro	—	Engine: 6.2 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1991–1992	Chevrolet	Camaro	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2002	Chevrolet	Camaro	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2015	Chevrolet	Camaro	—	Aspiration: Normal; Engine: 6.2 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2002	Chevrolet	Camaro	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1994–1996, 2011	Chevrolet	Caprice	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2012–2014, 2016–2017	Chevrolet	Caprice	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2015	Chevrolet	Caprice	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998–2001	Chevrolet	Cavalier	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2002	Chevrolet	Cavalier	—	Cylinder Head Type: OHV; Fuel Type: Gas; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2002	Chevrolet	Cavalier	—	Engine ID: LD9; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987, 1989	Chevrolet	Cavalier	—	Engine: 2.0 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1990–1994	Chevrolet	Cavalier	—	Engine: 2.2 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2002	Chevrolet	Cavalier	—	Fuel Type: Bi-Fuel; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1991–1994	Chevrolet	Cavalier	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995–1997	Chevrolet	Cavalier	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988	Chevrolet	Cavalier	—	Engine: 2.0 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987–1989	Chevrolet	Celebrity	—	Engine: 2.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1990	Chevrolet	Celebrity	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2009, 2012	Chevrolet	Colorado	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987–1988	Chevrolet	Corsica	—	Engine: 2.0 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1990–1994	Chevrolet	Corsica	—	Engine: 2.2 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987–1988	Chevrolet	Corsica	—	Engine: 2.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1990–1994	Chevrolet	Corsica	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1989	Chevrolet	Corsica	—	Engine: 2.0 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995–1996	Chevrolet	Corsica	—	Engine: 2.2 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1989	Chevrolet	Corsica	—	Engine: 2.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995–1996	Chevrolet	Corsica	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1993–2005	Chevrolet	Corvette	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2009–2010, 2012–2013	Chevrolet	Corvette	—	Aspiration: Normal; Engine: 6.2 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1992	Chevrolet	Corvette	—	Cylinder Head Type: OHV; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006–2007	Chevrolet	Corvette	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2011	Chevrolet	Corvette	—	Aspiration: Normal; Engine: 6.2 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005–2007	Chevrolet	Equinox	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2008–2009	Chevrolet	Equinox	—	Engine: 3.4 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2006, 2009–2010, 2012–2014	Chevrolet	Express 1500	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2002	Chevrolet	Express 1500	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2009–2010, 2012–2014	Chevrolet	Express 1500	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2002	Chevrolet	Express 1500	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007–2008, 2011	Chevrolet	Express 1500	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007, 2011	Chevrolet	Express 1500	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2005	Chevrolet	Express 2500	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2010, 2012–2014, 2016–2017	Chevrolet	Express 2500	—	Engine: 4.8 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2002	Chevrolet	Express 2500	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2005	Chevrolet	Express 2500	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2002	Chevrolet	Express 2500	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2010, 2012–2014, 2016–2017	Chevrolet	Express 2500	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2011, 2015	Chevrolet	Express 2500	—	Engine: 4.8 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2011, 2015	Chevrolet	Express 2500	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005	Chevrolet	Express 3500	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006, 2008–2010, 2012–2014, 2016–2017	Chevrolet	Express 3500	—	Engine: 4.8 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2002	Chevrolet	Express 3500	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2004, 2006, 2008–2010, 2012–2014, 2016–2017	Chevrolet	Express 3500	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	Chevrolet	Express 3500	—	Engine: 7.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2002	Chevrolet	Express 3500	—	Engine: 8.1 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007, 2011, 2015	Chevrolet	Express 3500	—	Engine: 4.8 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007, 2011, 2015	Chevrolet	Express 3500	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2009–2014, 2016	Chevrolet	Express 4500	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2015	Chevrolet	Express 4500	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2000–2005, 2011	Chevrolet	Impala	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006–2007	Chevrolet	Impala	—	Engine: 3.5 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006–2007	Chevrolet	Impala	—	Engine: 3.9 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1994–1996	Chevrolet	Impala	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006–2007	Chevrolet	Impala	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2010	Chevrolet	Impala	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2008–2009	Chevrolet	Impala	—	Engine: 3.5 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2008–2009	Chevrolet	Impala	—	Engine: 3.9 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2008–2009	Chevrolet	Impala	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1998	Chevrolet	K1500	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999	Chevrolet	K1500	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1998	Chevrolet	K1500	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1998	Chevrolet	K1500	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1999	Chevrolet	K1500 Suburban	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–1998	Chevrolet	K2500	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	Chevrolet	K2500	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	Chevrolet	K2500	—	Engine: 7.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1999	Chevrolet	K2500 Suburban	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1999	Chevrolet	K2500 Suburban	—	Engine: 7.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	Chevrolet	K3500	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	Chevrolet	K3500	—	Engine: 7.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1994–1995	Chevrolet	LLV	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2001	Chevrolet	Lumina	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1991–1992, 1995	Chevrolet	Lumina	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1993	Chevrolet	Lumina	—	Engine: 2.2 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1990, 1993–1994	Chevrolet	Lumina	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996	Chevrolet	Lumina APV	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1992–1995	Chevrolet	Lumina APV	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–1999	Chevrolet	Malibu	—	Engine: 2.4 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2000–2003	Chevrolet	Malibu	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–1999	Chevrolet	Malibu	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004–2010	Chevrolet	Malibu	—	Engine: 3.5 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006–2007	Chevrolet	Malibu	—	Engine: 3.9 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2005	Chevrolet	Monte Carlo	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995	Chevrolet	Monte Carlo	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006–2007	Chevrolet	Monte Carlo	—	Engine: 3.5 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006	Chevrolet	Monte Carlo	—	Engine: 3.9 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006–2007	Chevrolet	Monte Carlo	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–1999	Chevrolet	P30	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997	Chevrolet	P30	—	Engine ID: L29; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–1999	Chevrolet	P30	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998–1999	Chevrolet	P30	—	Engine: 7.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996	Chevrolet	P30	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996	Chevrolet	P30	—	Engine: 7.4 V8; Fuel Delivery Sub Type: MFI; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–2000	Chevrolet	S10	—	Engine: 2.2 L4; Fuel Type: Gas; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996, 2001–2003	Chevrolet	S10	—	Engine: 2.2 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2000	Chevrolet	S10	—	Fuel Type: Flex; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004	Chevrolet	S10	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–2000	Chevrolet	S10	—	Engine: 4.3 V6; Fuel Type: Gas; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996, 2001–2003	Chevrolet	S10	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1994–1995	Chevrolet	S10	—	Engine: 2.2 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999–2004, 2009–2013	Chevrolet	Silverado 1500	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999–2004, 2009–2013	Chevrolet	Silverado 1500	—	Engine: 4.8 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999–2004, 2009–2013	Chevrolet	Silverado 1500	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2009–2013	Chevrolet	Silverado 1500	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2009–2013	Chevrolet	Silverado 1500	—	Engine: 6.2 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005–2008	Chevrolet	Silverado 1500	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005–2008	Chevrolet	Silverado 1500	—	Engine: 4.8 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005–2008	Chevrolet	Silverado 1500	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006–2008	Chevrolet	Silverado 1500	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007	Chevrolet	Silverado 1500 Classic	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007	Chevrolet	Silverado 1500 Classic	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007	Chevrolet	Silverado 1500 Classic	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2003, 2005–2006	Chevrolet	Silverado 1500 HD	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999–2004	Chevrolet	Silverado 2500	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2006, 2008–2014, 2016–2019	Chevrolet	Silverado 2500 HD	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2006	Chevrolet	Silverado 2500 HD	—	Engine: 8.1 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007, 2015	Chevrolet	Silverado 2500 HD	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007	Chevrolet	Silverado 2500 HD Classic	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2006	Chevrolet	Silverado 3500	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2006	Chevrolet	Silverado 3500	—	Engine: 8.1 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007–2014, 2016–2019	Chevrolet	Silverado 3500 HD	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2015	Chevrolet	Silverado 3500 HD	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2014, 2016–2017	Chevrolet	SS	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2015	Chevrolet	SS	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005–2006	Chevrolet	SSR	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2000–2014	Chevrolet	Suburban 1500	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2000–2013	Chevrolet	Suburban 2500	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2016–2017, 2019	Chevrolet	Suburban 3500 HD	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2018	Chevrolet	Suburban 3500 HD	—	Fuel Type: Flex; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2007, 2009–2014	Chevrolet	Tahoe	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2008	Chevrolet	Tahoe	—	Engine: 4.8 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2008	Chevrolet	Tahoe	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1999	Chevrolet	Tahoe	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2008	Chevrolet	Tahoe	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2000	Chevrolet	Tahoe	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2009	Chevrolet	Trailblazer	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006–2008	Chevrolet	Trailblazer	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005	Chevrolet	Trailblazer EXT	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005, 2007–2008	Chevrolet	Uplander	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006	Chevrolet	Uplander	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2009	Chevrolet	Uplander	—	Gap 0.044
1997–2005	Chevrolet	Venture	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–1987	Ford	Aerostar	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988–1997	Ford	Aerostar	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1984, 1987–1990	Ford	Bronco II	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1985	Ford	Bronco II	—	Engine: 2.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986	Ford	Bronco II	—	Engine: 2.9 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995–1996	Ford	Contour	—	Engine: 2.5 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–2000	Ford	Contour	—	Engine: 2.5 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988–1991	Ford	Country Squire	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987	Ford	Country Squire	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1981–1982	Ford	Courier	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1979	Ford	Courier	—	Engine: 2.0 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1977–1980	Ford	Courier	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2010	Ford	Crown Victoria	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995, 2011	Ford	Crown Victoria	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2013	Ford	E-150	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2005, 2008	Ford	E-150	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2014	Ford	E-150	—	Engine: 5.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2009–2012	Ford	E-150	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006–2007	Ford	E-150	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004–2005	Ford	E-150 Club Wagon	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003	Ford	E-150 Club Wagon	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003	Ford	E-150 Club Wagon	—	Engine: 5.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997	Ford	E-150 Econoline	—	Engine: 4.2 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–2002	Ford	E-150 Econoline	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997	Ford	E-150 Econoline	—	Engine: 5.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997	Ford	E-150 Econoline Club Wagon	—	Engine: 4.2 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–2002	Ford	E-150 Econoline Club Wagon	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–2002	Ford	E-150 Econoline Club Wagon	—	Engine: 5.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2010–2013	Ford	E-250	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003, 2006–2009	Ford	E-250	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2014	Ford	E-250	—	Engine: 5.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003	Ford	E-250	—	Fuel Type: CNG; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997	Ford	E-250 Econoline	—	Engine: 4.2 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998–1999	Ford	E-250 Econoline	—	Fuel Type: Bi-Fuel; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–2002	Ford	E-250 Econoline	—	Fuel Type: CNG; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005	Ford	E-350 Club Wagon	—	Engine: 6.8 V10; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2005	Ford	E-350 Club Wagon	—	Engine: 5.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997	Ford	E-350 Econoline	—	Engine: 6.8 V10; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997	Ford	E-350 Econoline	—	Engine: 5.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998	Ford	E-350 Econoline	—	Fuel Type: Bi-Fuel; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998	Ford	E-350 Econoline	—	Fuel Type: CNG; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997, 1999–2002	Ford	E-350 Econoline Club Wagon	—	Engine: 6.8 V10; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–2002	Ford	E-350 Econoline Club Wagon	—	Engine: 5.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2013–2014, 2016–2019	Ford	E-350 Super Duty	—	Engine: 6.8 V10; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2013–2014, 2016	Ford	E-350 Super Duty	—	Engine: 5.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999–2004	Ford	E-350 Super Duty	—	Fuel Type: CNG; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2010–2012, 2015	Ford	E-350 Super Duty	—	Engine: 6.8 V10; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2009–2012, 2015	Ford	E-350 Super Duty	—	Engine: 5.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2010–2014, 2016–2019	Ford	E-450 Super Duty	—	Engine: 6.8 V10; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2010–2016	Ford	E-450 Super Duty	—	Engine: 5.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2015	Ford	E-450 Super Duty	—	Engine: 6.8 V10; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2002	Ford	E-550 Econoline Super Duty	—	Engine: 6.8 V10; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997	Ford	Econoline Super Duty	—	Engine: 6.8 V10; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–1999	Ford	Econoline Super Duty	—	Engine: 5.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005–2006	Ford	Escape	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2006, 2011–2012	Ford	Escape	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007–2008	Ford	Escape	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007, 2009–2010	Ford	Escape	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2008	Ford	Escape	—	Engine: 3.0 V6; Gap 0.044
1985, 1991–1992	Ford	Escort	—	Engine: 1.9 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1993	Ford	Escort	—	Engine: 1.9 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997, 2002	Ford	Expedition	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998–2001, 2003–2004	Ford	Expedition	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1991–1995	Ford	Explorer	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000, 2002–2005	Ford	Explorer	—	Engine: 4.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2002–2005	Ford	Explorer	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	Ford	Explorer	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001	Ford	Explorer	—	Engine: 4.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001	Ford	Explorer	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2003, 2005	Ford	Explorer Sport Trac	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004	Ford	Explorer Sport Trac	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1982–1983	Ford	F-100	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997	Ford	F-150	—	Engine: 4.2 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–2004, 2006–2008	Ford	F-150	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998, 2001–2003	Ford	F-150	—	Fuel Type: CNG; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005	Ford	F-150	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004	Ford	F-150 Heritage	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004	Ford	F-150 Heritage	—	Fuel Type: CNG; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997	Ford	F-250	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998–1999	Ford	F-250	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998–1999	Ford	F-250	—	Fuel Type: CNG; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1978–1983	Ford	Fairmont	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005–2007	Ford	Five Hundred	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005–2007	Ford	Focus	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2008–2010	Ford	Focus	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2011	Ford	Focus	—	Gap 0.044, Qty 2 Per Cyl., Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004–2007	Ford	Freestar	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006–2007	Ford	Freestyle	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005	Ford	Freestyle	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007, 2011–2012	Ford	Fusion	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006, 2008–2010	Ford	Fusion	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1981–1982	Ford	Granada	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1982	Ford	Granada	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1983–1984	Ford	LTD	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1983–1984	Ford	LTD	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1985–1986	Ford	LTD	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1985–1986	Ford	LTD	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986	Ford	LTD	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987–1989	Ford	LTD Crown Victoria	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1990–1991	Ford	LTD Crown Victoria	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1979–1980, 1982, 1986	Ford	Mustang	—	Aspiration: Normal; Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1979	Ford	Mustang	—	Engine: 2.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1983–1984, 1986, 1994–2003	Ford	Mustang	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003	Ford	Mustang	—	Aspiration: Normal; Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2002	Ford	Mustang	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986	Ford	Mustang	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2000, 2007–2012	Ford	Mustang	—	Engine: 5.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1981, 1985	Ford	Mustang	—	Aspiration: Normal; Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987–1990	Ford	Mustang	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1985, 2004	Ford	Mustang	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004	Ford	Mustang	—	Engine: 3.9 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004	Ford	Mustang	—	Aspiration: Normal; Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1974–1978	Ford	Mustang II	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1977–1978	Ford	Mustang II	—	Engine: 2.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1980	Ford	Pinto	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1974–1979	Ford	Pinto	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1977–1979	Ford	Pinto	—	Engine: 2.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1991–1992	Ford	Probe	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1990	Ford	Probe	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–1987	Ford	Ranger	—	Aspiration: Normal; Cylinder Head Type: SOHC; Fuel Delivery Type: FI; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1985	Ford	Ranger	—	Aspiration: Normal; Fuel Delivery Type: FI; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1985–1987	Ford	Ranger	—	Aspiration: Turbo; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1985	Ford	Ranger	—	Cylinder Head Type: SOHC; Fuel Delivery Type: CARB; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1983–1984, 1988	Ford	Ranger	—	Engine: 2.0 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988, 2007–2011	Ford	Ranger	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–1987	Ford	Ranger	—	Fuel Delivery Type: CARB; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1985–1987	Ford	Ranger	—	Cylinder Head Type: OHV; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988–1992	Ford	Ranger	—	Engine: 2.9 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1991–1997, 2007–2008	Ford	Ranger	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1990–1997	Ford	Ranger	—	Engine: 4.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2002	Ford	Ranger	—	Engine: 2.3 L4; Fuel Type: Gas; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2006	Ford	Ranger	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998–2002	Ford	Ranger	—	Engine: 3.0 V6; Fuel Type: Gas; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2006	Ford	Ranger	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998–2000	Ford	Ranger	—	Engine: 4.0 V6; Fuel Type: Gas; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999–2002	Ford	Ranger	—	Fuel Type: Flex; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1994–1997	Ford	Ranger	—	Engine: 2.3 L4; Gap 0.044, Qty 2 Per Cyl., Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998–2001	Ford	Ranger	—	Engine: 2.5 L4; Fuel Type: Gas; Gap 0.044, Qty 2 Per Cyl., Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2000–2007	Ford	Taurus	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1989	Ford	Taurus	—	Cylinder Head Type: OHV; Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1999	Ford	Taurus	—	Cylinder Head Type: OHV; Fuel Type: Gas; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1999	Ford	Taurus	—	Engine VIN: S; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1989	Ford	Taurus	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999	Ford	Taurus	—	Fuel Type: Flex; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1999	Ford	Taurus	—	Engine VIN: N; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1993–1995	Ford	Taurus	—	Cylinder Head Type: OHV; Engine: 3.0 V6; Fuel Type: Gas; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1990–1992	Ford	Taurus	—	Cylinder Head Type: OHV; Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988	Ford	Taurus	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988, 1990–1995	Ford	Taurus	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988–1989	Ford	Tempo	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1985–1986	Ford	Tempo	—	Engine VIN: X; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1984, 1992	Ford	Tempo	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1992	Ford	Tempo	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1990–1991	Ford	Tempo	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987	Ford	Tempo	—	Engine VIN: X; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1993–1994	Ford	Tempo	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1993–1994	Ford	Tempo	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1982–1988, 1996–1997	Ford	Thunderbird	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1997	Ford	Thunderbird	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–1988	Ford	Thunderbird	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2010, 2013	Ford	Transit Connect	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2011–2012	Ford	Transit Connect	—	Fuel Type: Gas; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995–2003	Ford	Windstar	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1998	GMC	C1500	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999	GMC	C1500	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1998	GMC	C1500	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1998	GMC	C1500	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1999	GMC	C1500 Suburban	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1998	GMC	C2500	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	GMC	C2500	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	GMC	C2500	—	Engine: 7.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1999	GMC	C2500 Suburban	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1999	GMC	C2500 Suburban	—	Engine: 7.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	GMC	C3500	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	GMC	C3500	—	Engine: 7.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	GMC	C3500HD	—	Engine: 7.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2009, 2012	GMC	Canyon	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005	GMC	Envoy	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2005	GMC	Envoy XL	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004–2005	GMC	Envoy XUV	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2001, 2005	GMC	Jimmy	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1998	GMC	K1500	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999	GMC	K1500	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1998	GMC	K1500	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1998	GMC	K1500	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1999	GMC	K1500 Suburban	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998	GMC	K2500	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	GMC	K2500	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	GMC	K2500	—	Engine: 7.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1999	GMC	K2500 Suburban	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1999	GMC	K2500 Suburban	—	Engine: 7.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	GMC	K3500	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	GMC	K3500	—	Engine: 7.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998–1999	GMC	P3500	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997	GMC	P3500	—	Engine ID: L29; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998–1999	GMC	P3500	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998–1999	GMC	P3500	—	Engine: 7.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996	GMC	P3500	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2005	GMC	Safari	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2006, 2009–2010, 2012–2013	GMC	Savana 1500	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2002	GMC	Savana 1500	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2005, 2009–2010, 2012–2014	GMC	Savana 1500	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2002	GMC	Savana 1500	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007–2008, 2011	GMC	Savana 1500	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007, 2011	GMC	Savana 1500	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2005	GMC	Savana 2500	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2010, 2012–2014, 2016–2017	GMC	Savana 2500	—	Engine: 4.8 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2002	GMC	Savana 2500	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2005	GMC	Savana 2500	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2002	GMC	Savana 2500	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2010, 2012–2014, 2016–2017	GMC	Savana 2500	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2011, 2015	GMC	Savana 2500	—	Engine: 4.8 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2011, 2015	GMC	Savana 2500	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004–2005	GMC	Savana 3500	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006, 2008–2010, 2012–2014, 2016–2017	GMC	Savana 3500	—	Engine: 4.8 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2002	GMC	Savana 3500	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003, 2006, 2008–2010, 2012–2014, 2016–2017	GMC	Savana 3500	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2000	GMC	Savana 3500	—	Engine: 7.4 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2002	GMC	Savana 3500	—	Engine: 8.1 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007, 2011, 2015	GMC	Savana 3500	—	Engine: 4.8 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007, 2011, 2015	GMC	Savana 3500	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2009–2014, 2016	GMC	Savana 4500	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2015	GMC	Savana 4500	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999–2001, 2011–2013	GMC	Sierra 1500	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999–2001, 2011–2013	GMC	Sierra 1500	—	Engine: 4.8 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999–2001, 2011–2013	GMC	Sierra 1500	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2011–2013	GMC	Sierra 1500	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2011–2013	GMC	Sierra 1500	—	Engine: 6.2 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2002–2010	GMC	Sierra 1500	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2002–2010	GMC	Sierra 1500	—	Engine: 4.8 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2002–2010	GMC	Sierra 1500	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2002–2010	GMC	Sierra 1500	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007–2010	GMC	Sierra 1500	—	Engine: 6.2 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007	GMC	Sierra 1500 Classic	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007	GMC	Sierra 1500 Classic	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007	GMC	Sierra 1500 Classic	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2003, 2005–2006	GMC	Sierra 1500 HD	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999–2004	GMC	Sierra 2500	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2006, 2008–2012, 2014, 2016, 2019	GMC	Sierra 2500 HD	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2006	GMC	Sierra 2500 HD	—	Engine: 8.1 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2017–2018	GMC	Sierra 2500 HD	—	Fuel Type: Flex; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007, 2013, 2015	GMC	Sierra 2500 HD	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007	GMC	Sierra 2500 HD Classic	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2006	GMC	Sierra 3500	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2006	GMC	Sierra 3500	—	Engine: 8.1 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007–2014, 2016–2019	GMC	Sierra 3500 HD	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2015	GMC	Sierra 3500 HD	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2003	GMC	Sonoma	—	Engine: 2.2 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004	GMC	Sonoma	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2003	GMC	Sonoma	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1992, 1998–2014	GMC	Yukon	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2000, 2009–2014	GMC	Yukon XL 1500	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007–2008	GMC	Yukon XL 1500	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007–2008	GMC	Yukon XL 1500	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2006	GMC	Yukon XL 1500	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2000–2013	GMC	Yukon XL 2500	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2009	Hummer	H2	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2010	Hummer	H3	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2008–2009	Hummer	H3	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2009–2010	Hummer	H3T	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2004	Isuzu	Ascender	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005	Isuzu	Ascender	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996	Isuzu	Hombre	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–2000	Isuzu	Hombre	—	Engine: 2.2 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–2000	Isuzu	Hombre	—	Engine: 4.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2000–2004, 2006–2007	Jaguar	S-Type	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005, 2008	Jaguar	S-Type	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2002–2007	Jaguar	X-Type	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2008	Jaguar	X-Type	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2005	Lincoln	Aviator	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2002	Lincoln	Blackwood	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988–1994	Lincoln	Continental	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1982	Lincoln	Continental	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–1987, 1995–2002	Lincoln	Continental	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2000–2004	Lincoln	LS	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005	Lincoln	LS	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–1989	Lincoln	Mark VII	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1998	Lincoln	Mark VIII	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2004	Lincoln	Navigator	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–1990, 1995–2011	Lincoln	Town Car	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006	Lincoln	Zephyr	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004	Mazda	3	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005	Mazda	3	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006–2007	Mazda	5	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2005	Mazda	6	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004–2008	Mazda	6	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004–2005, 2007–2008	Mazda	B2300	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998, 2000–2001	Mazda	B2500	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999	Mazda	B2500	—	Gap 0.044, Qty 2 Per Cyl., Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998, 2005–2007	Mazda	B3000	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2003	Mazda	B3000	—	Fuel Type: Gas; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999	Mazda	B3000	—	Fuel Type: Gas; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–2005	Mazda	B4000	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2000–2001, 2004–2006	Mazda	MPV	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2002–2003	Mazda	MPV	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2008	Mazda	Tribute	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2004, 2008	Mazda	Tribute	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005–2006	Mazda	Tribute	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2002, 2005–2006	Mazda	Tribute	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1984–1985	Mercedes-Benz	190E	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988	Mercedes-Benz	190E	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1989–1990	Mercedes-Benz	190E	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988	Mercedes-Benz	190E	—	Engine: 2.6 L6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986	Mercedes-Benz	190E	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987	Mercedes-Benz	190E	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987, 1991–1993	Mercedes-Benz	190E	—	Engine: 2.6 L6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987–1989	Mercedes-Benz	260E	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988–1989, 1991	Mercedes-Benz	300CE	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–1992	Mercedes-Benz	300E	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1993	Mercedes-Benz	300E	—	Engine: 2.8 L6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1993	Mercedes-Benz	300E	—	Engine: 3.0 L6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988–1991	Mercedes-Benz	300SE	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988–1991	Mercedes-Benz	300SEL	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988–1992	Mercedes-Benz	300TE	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1993	Mercedes-Benz	300TE	—	Engine: 3.0 L6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1980	Mercury	Bobcat	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1975–1979	Mercury	Bobcat	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1975–1979	Mercury	Bobcat	—	Engine: 2.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1983–1984	Mercury	Capri	—	Aspiration: Normal; Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1979–1982, 1986	Mercury	Capri	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1979	Mercury	Capri	—	Engine: 2.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1983–1984, 1986	Mercury	Capri	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986	Mercury	Capri	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1985	Mercury	Capri	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1985	Mercury	Capri	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987–1991	Mercury	Colony Park	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1981	Mercury	Cougar	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1989–1990	Mercury	Cougar	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1982–1984, 1986–1988, 1996–1997	Mercury	Cougar	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1997	Mercury	Cougar	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–1988	Mercury	Cougar	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999–2002	Mercury	Cougar	—	Engine: 2.5 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1985, 1991–1995	Mercury	Cougar	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1990–1991, 1995–2007, 2010–2011	Mercury	Grand Marquis	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–1989	Mercury	Grand Marquis	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2008–2009	Mercury	Grand Marquis	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1982	Mercury	Lynx	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1985	Mercury	Lynx	—	Engine: 1.9 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1983–1984, 1986	Mercury	Lynx	—	Fuel Delivery Type: CARB; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987	Mercury	Lynx	—	Engine VIN: 9; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2003–2004	Mercury	Marauder	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007	Mercury	Mariner	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007, 2011	Mercury	Mariner	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005–2006, 2008	Mercury	Mariner	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005–2006, 2008–2010	Mercury	Mariner	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1983–1986	Mercury	Marquis	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1983–1986	Mercury	Marquis	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006–2010	Mercury	Milan	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2011	Mercury	Milan	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005–2007	Mercury	Montego	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004–2007	Mercury	Monterey	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998–2006	Mercury	Mountaineer	—	Engine: 4.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997	Mercury	Mountaineer	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2002–2005	Mercury	Mountaineer	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998–2001	Mercury	Mountaineer	—	Engine: 5.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995, 1997, 1999–2000	Mercury	Mystique	—	Engine: 2.5 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996, 1998	Mercury	Mystique	—	Engine: 2.5 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988–2005	Mercury	Sable	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988–1991	Mercury	Topaz	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1985–1986	Mercury	Topaz	—	Engine VIN: X; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987	Mercury	Topaz	—	Engine VIN: X; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1992–1994	Mercury	Topaz	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1992–1994	Mercury	Topaz	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1991–1993	Mercury	Tracer	—	Engine: 1.9 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1978–1983	Mercury	Zephyr	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988–1989	Merkur	Scorpio	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1992–1999	Oldsmobile	88	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–1996	Oldsmobile	98	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995	Oldsmobile	Achieva	—	Engine: 2.3 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1998	Oldsmobile	Achieva	—	Engine: 2.4 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995–1998	Oldsmobile	Achieva	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1994	Oldsmobile	Achieva	—	Engine VIN: D; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1992–1994	Oldsmobile	Achieva	—	Cylinder Head Type: OHV; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999–2001	Oldsmobile	Alero	—	Engine: 2.4 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999–2003	Oldsmobile	Alero	—	Engine: 3.4 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004	Oldsmobile	Alero	—	Engine: 3.4 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2002	Oldsmobile	Aurora	—	Engine: 3.5 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995–1999, 2003	Oldsmobile	Aurora	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2002	Oldsmobile	Aurora	—	Engine: 4.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2001	Oldsmobile	Bravada	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1985–1987	Oldsmobile	Calais	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–1999	Oldsmobile	Cutlass	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1991	Oldsmobile	Cutlass Calais	—	Engine VIN: N; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988	Oldsmobile	Cutlass Calais	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1989–1990	Oldsmobile	Cutlass Calais	—	Engine VIN: N; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995–1996	Oldsmobile	Cutlass Ciera	—	Engine: 2.2 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1990	Oldsmobile	Cutlass Ciera	—	Engine VIN: N; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995–1996	Oldsmobile	Cutlass Ciera	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1991–1992	Oldsmobile	Cutlass Ciera	—	Engine: 3.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986	Oldsmobile	Cutlass Ciera	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1993–1994	Oldsmobile	Cutlass Ciera	—	Engine: 2.2 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1989	Oldsmobile	Cutlass Ciera	—	Engine VIN: N; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1989	Oldsmobile	Cutlass Ciera	—	Engine VIN: W; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987–1988	Oldsmobile	Cutlass Ciera	—	Engine: 2.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1994	Oldsmobile	Cutlass Ciera	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1993	Oldsmobile	Cutlass Ciera	—	Engine: 3.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987–1988	Oldsmobile	Cutlass Ciera	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1993–1994	Oldsmobile	Cutlass Cruiser	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1990–1992	Oldsmobile	Cutlass Cruiser	—	Engine: 3.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987–1989	Oldsmobile	Cutlass Cruiser	—	Engine: 2.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1989	Oldsmobile	Cutlass Cruiser	—	Engine: 3.3 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987–1988	Oldsmobile	Cutlass Cruiser	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1997	Oldsmobile	Cutlass Supreme	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1992, 1994–1995	Oldsmobile	Cutlass Supreme	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1989	Oldsmobile	Cutlass Supreme	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1990	Oldsmobile	Cutlass Supreme	—	Cylinder Head Type: OHV; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988	Oldsmobile	Cutlass Supreme	—	Engine: 2.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1991, 1993	Oldsmobile	Cutlass Supreme	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–1991	Oldsmobile	Delta 88	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988	Oldsmobile	Firenza	—	Cylinder Head Type: OHV; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987	Oldsmobile	Firenza	—	Engine VIN: 1; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998–2002	Oldsmobile	Intrigue	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1999	Oldsmobile	LSS	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1997–1998	Oldsmobile	Regency	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995–2004	Oldsmobile	Silhouette	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1992–1994	Oldsmobile	Silhouette	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1986–1992	Oldsmobile	Toronado	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1989	Pontiac	6000	—	Engine: 2.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1989–1991	Pontiac	6000	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987–1988	Pontiac	6000	—	Engine: 2.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988	Pontiac	6000	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2005	Pontiac	Aztek	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987, 1989–2003	Pontiac	Bonneville	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988	Pontiac	Bonneville	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004–2005	Pontiac	Bonneville	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004–2005	Pontiac	Bonneville	—	Engine: 4.6 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1991–1992	Pontiac	Firebird	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995–2000	Pontiac	Firebird	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1993–2000	Pontiac	Firebird	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2002	Pontiac	Firebird	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2001–2002	Pontiac	Firebird	—	Engine: 5.7 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005	Pontiac	G6	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006–2009	Pontiac	G6	—	Engine: 3.5 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006–2009	Pontiac	G6	—	Engine: 3.9 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2010	Pontiac	G6	—	Engine: 3.5 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2008–2009	Pontiac	G8	—	Engine: 6.0 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2009	Pontiac	G8	—	Engine: 6.2 V8; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2001	Pontiac	Grand Am	—	Engine: 2.4 L4; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1992–1993	Pontiac	Grand Am	—	Cylinder Head Type: OHV; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1985–1986	Pontiac	Grand Am	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995–1997	Pontiac	Grand Am	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999–2003	Pontiac	Grand Am	—	Engine: 3.4 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1994	Pontiac	Grand Am	—	Cylinder Head Type: OHV; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1987	Pontiac	Grand Am	—	Engine: 3.0 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2004–2005	Pontiac	Grand Am	—	Engine: 3.4 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1997, 1999–2004	Pontiac	Grand Prix	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1992–1995	Pontiac	Grand Prix	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998	Pontiac	Grand Prix	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1988	Pontiac	Grand Prix	—	Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1989–1990	Pontiac	Grand Prix	—	Aspiration: Normal; Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1989	Pontiac	Grand Prix	—	Engine: 2.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1991	Pontiac	Grand Prix	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005–2008	Pontiac	Grand Prix	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005–2008	Pontiac	Grand Prix	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1998	Pontiac	Grand Prix	—	Engine: 3.1 V6; Gap 0.044
2004–2006	Pontiac	GTO	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1999–2006	Pontiac	Montana	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007–2009	Pontiac	Montana	—	Gap 0.044
1991–1994	Pontiac	Sunbird	—	Engine: 3.1 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–2001	Pontiac	Sunfire	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2002	Pontiac	Sunfire	—	Cylinder Head Type: OHV; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2002	Pontiac	Sunfire	—	Engine ID: LD9; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1995	Pontiac	Sunfire	—	Engine: 2.2 L4; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2006–2007	Pontiac	Torrent	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2008–2009	Pontiac	Torrent	—	Engine: 3.4 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1996–1998	Pontiac	Trans Sport	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
1992–1995	Pontiac	Trans Sport	—	Engine: 3.8 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005	Saab	9-7x	—	Engine: 5.3 V8; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2008	Saturn	Aura	—	Engine: 3.5 V6; Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2007	Saturn	Aura	—	Engine: 3.5 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2005–2007	Saturn	Relay	—	Gap 0.044, Iridium Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
2008–2009	Saturn	Vue	—	Engine: 3.5 V6; Gap 0.044, Iridium Power - Performance Upgrade with Worlds Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)

Source: supplier-verified applications for Denso IT16#4. A vehicle not listed is not confirmed compatible.

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Denso Spark Plug IT16#4

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