Oxygen Sensor 21049
Oxygen Sensor 21049

NTK Oxygen Sensor 21049

XPart Number XP11000999
$105
Available by special order
Buying Options: OEM Genuine

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AUTOMOTIVE PART

NTK Oxygen Sensor 21049

Oxygen Sensor, OE Type

Part 21049NTKOxygen Sensor
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 Number21049
ManufacturerNTK
Part TypeOxygen Sensor

Part Details

Part Specifications

California Proposition 65 WARNING/Precaucion: Cancer and Reproductive Harm - Cancer y dano
Connector Gender Female
Connector Shape Square
Fitment Specific
Grade Type Standard Replacement
Heated Yes
Mounting Type Threaded
Prop65 Cancer and Reproductive
Sensor Type Narrow-Band
Thread Diameter 18.00 MM
Thread Size M18 - 1.5
Wire Quantity 4
Wiring Harness Length 16.75 IN
Wrench Size 7/8" (22mm)

Verified Vehicle Fitment

Make: Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile
Model: 24 verified models — see exact combinations below.
Years: 2002–2007 — 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 (56 configuration groups)
Years Make Model Position Engine / transmission / notes
2006 Cadillac CTS Downstream Left Engine: 6.0 V8; B1S2, OE Equivalent Design
2006 Cadillac CTS Downstream Right Engine: 6.0 V8; B2S2, OE Equivalent Design
2007 Cadillac Escalade Downstream Left B1S2, OE Equivalent Design
2007 Cadillac Escalade Downstream Right B2S2, OE Equivalent Design
2007 Cadillac Escalade ESV Downstream Left B1S2, OE Equivalent Design
2007 Cadillac Escalade ESV Downstream Right B2S2, OE Equivalent Design
2007 Cadillac Escalade EXT Downstream Left B1S2, OE Equivalent Design
2007 Cadillac Escalade EXT Downstream Right B2S2, OE Equivalent Design
2003–2005 Chevrolet Astro Downstream B1S3, OE Equivalent Design
2003–2005 Chevrolet Astro Upstream Right B2S1, OE Equivalent Design
2007 Chevrolet Avalanche Downstream Left B1S2, OE Equivalent Design
2007 Chevrolet Avalanche Downstream Right B2S2, OE Equivalent Design
2007 Chevrolet Silverado 1500 Downstream Left Engine: 4.3 V6; B1S2, OE Equivalent Design
2006 Chevrolet Silverado 1500 Downstream Left Engine: 4.8 V8; B1S2, OE Equivalent Design
2007 Chevrolet Silverado 1500 Downstream Right Engine: 4.3 V6; B2S2, OE Equivalent Design
2006 Chevrolet Silverado 1500 Downstream Right Engine: 4.8 V8; B2S2, OE Equivalent Design
2007 Chevrolet Silverado 1500 Classic Downstream Left Engine: 4.8 V8; B1S2, GMT800 Platform; Classic Models, OE Equivalent Design
2007 Chevrolet Silverado 1500 Classic Downstream Left Engine: 4.3 V6; B1S2, OE Equivalent Design
2007 Chevrolet Silverado 1500 Classic Downstream Right Engine: 4.8 V8; B2S2, GMT800 Platform; Classic Models, OE Equivalent Design
2007 Chevrolet Silverado 1500 Classic Downstream Right Engine: 4.3 V6; B2S2, OE Equivalent Design
2007 Chevrolet Suburban 1500 Downstream Left B1S2, OE Equivalent Design
2007 Chevrolet Suburban 1500 Downstream Right B2S2, OE Equivalent Design
2007 Chevrolet Suburban 2500 Downstream Left B1S2, OE Equivalent Design
2007 Chevrolet Suburban 2500 Downstream Right B2S2, OE Equivalent Design
2007 Chevrolet Tahoe Downstream Left B1S2, OE Equivalent Design
2006 Chevrolet Tahoe Downstream Left Engine: 4.8 V8; B1S2, OE Equivalent Design
2007 Chevrolet Tahoe Downstream Right B2S2, OE Equivalent Design
2006 Chevrolet Tahoe Downstream Right Engine: 4.8 V8; B2S2, OE Equivalent Design
2002–2003 Chevrolet Trailblazer Upstream B1S1, OE MFR: NTK
2002 Chevrolet Trailblazer EXT Upstream B1S1, OE MFR: NTK
2003 Chevrolet Trailblazer EXT Upstream Engine: 4.2 L6; B1S1, OE MFR: NTK
2002–2003 GMC Envoy Upstream B1S1, OE MFR: NTK
2002 GMC Envoy XL Upstream B1S1, OE MFR: NTK
2003 GMC Envoy XL Upstream Engine: 4.2 L6; B1S1, OE MFR: NTK
2003–2005 GMC Safari Downstream B1S3, OE Equivalent Design
2003–2005 GMC Safari Upstream Right B2S1, OE Equivalent Design
2007 GMC Sierra 1500 Downstream Left Engine: 4.3 V6; B1S2, OE Equivalent Design
2006 GMC Sierra 1500 Downstream Left Engine: 4.8 V8; B1S2, OE Equivalent Design
2007 GMC Sierra 1500 Downstream Right Engine: 4.3 V6; B2S2, OE Equivalent Design
2006 GMC Sierra 1500 Downstream Right Engine: 4.8 V8; B2S2, OE Equivalent Design
2007 GMC Sierra 1500 Classic Downstream Left Engine: 4.8 V8; B1S2, GMT800 Platform; Classic Models, OE Equivalent Design
2007 GMC Sierra 1500 Classic Downstream Left Engine: 4.3 V6; B1S2, OE Equivalent Design
2007 GMC Sierra 1500 Classic Downstream Right Engine: 4.8 V8; B2S2, GMT800 Platform; Classic Models, OE Equivalent Design
2007 GMC Sierra 1500 Classic Downstream Right Engine: 4.3 V6; B2S2, OE Equivalent Design
2007 GMC Yukon Downstream Left B1S2, OE Equivalent Design
2006 GMC Yukon Downstream Left Engine: 4.8 V8; B1S2, OE Equivalent Design
2007 GMC Yukon Downstream Right B2S2, OE Equivalent Design
2006 GMC Yukon Downstream Right Engine: 4.8 V8; B2S2, OE Equivalent Design
2007 GMC Yukon XL 1500 Downstream Left B1S2, OE Equivalent Design
2007 GMC Yukon XL 1500 Downstream Right B2S2, OE Equivalent Design
2007 GMC Yukon XL 2500 Downstream Left B1S2, OE Equivalent Design
2007 GMC Yukon XL 2500 Downstream Right B2S2, OE Equivalent Design
2007 Hummer H2 Downstream Left B1S2, OE Equivalent Design
2007 Hummer H2 Downstream Right B2S2, OE Equivalent Design
2003 Isuzu Ascender Upstream Engine: 4.2 L6; B1S1, OE MFR: NTK
2002–2003 Oldsmobile Bravada Upstream B1S1, OE MFR: NTK

Source: supplier-verified applications for NTK 21049. A vehicle not listed is not confirmed compatible.

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