Description
The Lennox 53J15 cast-iron pulley is a heavy-duty, OEM-grade variable-pitch component engineered for 3L/4L/5L belt drives in Lennox HVAC systems. With a precise 7/8″ bore, 4.75″ OD, and adjustable groove alignment, it ensures efficient power transmission, reliable blower operation, and long wear life. Recommended for service technicians and professionals restoring factory performance.
Specifications:
- Gross Weight: 3.65 LB
- Weight: 3.75 lbs
- Core Product: No
- Number of Grooves: 1-Groove
- Belt Type: 4L or A; 5L or B; 5V
- Type: Variable Pitch Cast Iron Finished Bore Pulley
- Pitch Diameter: 4L or A Belt: 3.4 to 4.4 Inch
- Bore Size: 7/8 Inch
- Outside Diameter: 4.75 Inch











