Black drive belt on white background
Black drive belt on white background

A38/4L400 HVAC V-Belt — Replaces Lennox 10H16, Carrier F170-70577819, Greenheck 345172

Price
$34.99

Frequently Bought Together

Confirm This Fits Your Model
Not sure where to find your model number? See guide →
BELT SLIPPING, SQUEALING OR WORN?

A38/4L400 HVAC V-Belt — Restores Blower Speed & Airflow

40-inch outside-length, 1/2-inch wrapped drive belt with verified Lennox, Carrier/IEC, Greenheck, Gates and Timken cross-reference data.

A38 / 4L40040" Outside Length1/2" Top Width40° Profile
Verified Lennox model fitment: ZGB048S401, ZGB060S401 and ZCB036S401. These model records list Lennox 10H16 as the A38, 40-inch blower belt. Confirm the complete model and original belt marking before ordering.

Verified Cross-Reference Information

Industry NumbersA38, 4L400
Lennox Numbers10H16, 100245-15, 01081A011, 22L51
Carrier / IECF170-70577819
Greenheck345172 (A38), 345067 (4L400)
Gates ClassicalA38, 9002-2038
Gates 4L4L400, 8400-2400, 2400

Equivalent vs. Alternative Belts

Dimensional FHP EquivalentsGates 6840 / 4L400K and Timken 4L400
Cogged Performance AlternativeAX38 — raw-edge cogged construction; not identical to a wrapped A38/4L400

Important: A belt can share the same nominal size while using different cover, cord, rubber compound or cogged construction. Match the original duty requirement as well as the section and length.

Size & Construction

Outside Length40" / 1016 mm
Top Width1/2" / 12.7 mm
Nominal HeightApproximately 5/16" to 11/32", depending on manufacturer specification
IncludedOne new wrapped A-section / 4L drive belt

Designed for compatible HVAC blowers, rooftop units, ventilation fans, air handlers, pumps and general power-transmission drives. Oil- and heat-resistant, static-dissipating construction is common in this belt class; verify any application-specific material requirement before substituting brands.

Common Problems This Belt May Correct

  • Startup squeal, chirp or belt slip
  • Weak airflow or a blower running below normal speed
  • Black belt dust around the motor or blower sheaves
  • A cracked, glazed, stretched, frayed or hardened belt

Check Before Ordering

  • Read the complete number printed on the original belt whenever possible.
  • Confirm a 1/2-inch A/4L profile and 40-inch outside-length designation.
  • Inspect both sheaves for polished, rusted, widened or damaged grooves.
  • Check shaft alignment, bearing drag and the tensioning mechanism.
Pro Tip: A new belt will not permanently stop noise caused by worn sheaves, misalignment or failing bearings. Repair the drive problem first, then set final tension to the equipment manufacturer's specification.

Installation Notes

  1. Disconnect and lock out electrical power.
  2. Release belt tension according to the equipment service instructions.
  3. Do not pry the replacement belt over a pulley; create enough slack for installation.
  4. Clean and align the sheaves, then set the specified belt tension.
  5. Rotate the drive by hand, reinstall all guards, restore power and test operation.

Frequently Asked Questions

Are A38 and 4L400 the same size?
They are commonly dual-designated for this 1/2-inch, 40-inch outside-length belt size. Manufacturer construction and rating can still differ.

Can AX38 replace this belt?
AX38 is a related raw-edge cogged performance alternative, not identical wrapped construction. Verify that the equipment permits the change.

Why can an old belt measure longer?
Used belts can stretch and wear. Match the printed number and the manufacturer's length system rather than relying only on a free-hand measurement.

✓ Model-Specific Repair Pages

Frigidaire 1 Dishwasher Parts & Repair Guide

Buy Online Pick Up In-Store

Address
101 Trillium Dr
Kitchener, Ontario N2E 1W8
Phone
1-877-899-7278
Hours
Mon–Fri 9 AM–5 PM • Sat 9 AM–1 PM
Get Directions
Map showing warehouse location at 101 Trillium Dr, Kitchener
View on Google Maps

What Customers Say

4.70 ★ (288)
Verified

All brand names are the property of their respective owners and are used for compatibility reference only.

Exact: A38, 4L400, Lennox 10H16, Lennox 100245-15, Lennox 01081A011, Lennox 22L51, Carrier/IEC F170-70577819, Greenheck 345172, Greenheck 345067, Gates A38, Gates 9002-2038, Gates 4L400, Gates 8400-2400, Gates 2400. Dimensional equivalents: Gates 6840, Gates 4L400K, Timken 4L400. Performance alternative: AX38 raw-edge cogged; not identical construction.

Verified Lennox models: ZGB048S401, ZGB060S401, ZCB036S401. For other equipment, match by A38/4L400 marking, 1/2-inch width and 40-inch outside length.