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

A37/4L390 HVAC V-Belt — Browning 25P06 Cross

Price
$34.99
Title: OEM Genuine

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BELT SLIPPING, SQUEALING OR WORN?

A37/4L390 HVAC V-Belt — Restores Blower Speed & Airflow

Wrapped A-section / 4L drive belt for compatible HVAC blowers, fans, pumps and equipment drives.

A37 / 4L39039" Outside Length1/2" Top Width40° Profile
Fitment rule: No manufacturer-published model-level list was verified. Match the complete A37/4L390 marking, 1/2-inch profile and 39-inch outside length—not equipment type alone.

Verified Cross-Reference Information

Industry NumbersA37, 4L390
Lennox / Browning25P06
Dimensional FHP EquivalentGates 6839 / 4L390K
Cogged AlternativeAX37 / Greenheck 345145; not identical wrapped construction

Important: The FHP and cogged numbers are alternatives, not proof of identical cover, cord or duty construction.

Size & Application Data

Outside Length39" / 991 mm
Top Width1/2" / 12.7 mm
Nominal HeightApproximately 5/16" to 11/32", depending on product line
IncludedOne new wrapped drive belt

Common Problems This Belt May Correct

  • Startup squeal, chirp or belt slip
  • Weak airflow or a fan, blower or pump running slowly
  • Black belt dust around the sheaves
  • A cracked, glazed, stretched or frayed belt

Check Before Ordering

  • Read the complete number printed on the old belt.
  • Confirm the 1/2-inch A/4L profile and 39-inch outside length.
  • Inspect sheaves for worn or widened grooves.
  • Check alignment, bearing drag and belt tension.
Pro Tip: Correct worn sheaves, misalignment or failing bearings before installing the new belt.

Installation Notes

  1. Disconnect and lock out power.
  2. Release tension according to the service manual.
  3. Do not pry the belt over a pulley.
  4. Align sheaves and set specified tension.
  5. Rotate by hand, reinstall guards and test.

Frequently Asked Questions

Is AX37 identical?
No. AX37 is a related raw-edge cogged performance alternative. Confirm that the equipment permits the construction change.

✓ Model-Specific Repair Pages

Frigidaire 1 Dishwasher Parts & Repair Guide

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Address
101 Trillium Dr
Kitchener, Ontario N2E 1W8
Phone
1-877-899-7278
Hours
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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 and OEM references: A37, 4L390, Lennox/Browning 25P06. Dimensional FHP equivalent: Gates 6839 / 4L390K. Performance alternative: AX37 / Greenheck 345145 raw-edge cogged; not identical wrapped construction.

No manufacturer-published model-level list was verified. Match by A37/4L390, 1/2-inch top width and 39-inch outside length.