Continental Contitech 20043791 Cogged V-belt 4L 31 in

Product Description

The CONTINENTAL CONTITECH 20043791 is a fractional horsepower cogged V-belt designed for power transmission applications across HVAC, refrigeration, and light industrial equipment. Carrying belt number 4L310, it features a 4L cross-section with a 31-inch outside length and a 30-inch internal length. The belt is constructed from high traction rubber, offering a flexible cogged profile that reduces bending resistance and heat buildup during operation. It is rated for working temperatures from -40 degrees C to 140 degrees C, making it suitable for both cold-storage and high-heat environments. Licensed HVAC technicians and mechanical service professionals are the primary installers.

This belt fits typical fractional horsepower drive systems found in residential and light commercial HVAC units, including belt-driven air handlers, furnace blower assemblies, condenser fan drives, and similar equipment. The 4L section is a standard fractional horsepower profile widely used in OEM blower and fan drive configurations. The cogged design improves grip on smaller-diameter sheaves and increases flexibility compared to a standard wrapped belt of the same section.

Key Features

• Cogged profile reduces heat buildup and improves flexibility on small-diameter sheaves
• High traction rubber construction for reliable grip and power transfer
• Abrasion resistant and ozone resistant for extended service life
• Wide operating temperature range: -40 degrees C to 140 degrees C
• 4L310 belt number — 4L section, 31-inch outside length, 30-inch internal length

Compatibility

Designed as an OEM-style replacement fractional horsepower V-belt for belt-driven blower and fan assemblies using a 4L section drive sheave.

Installation Notes

Installation is typically performed by a licensed HVAC technician or mechanical service professional. Disconnect and lock out all power to the unit before removing the old belt or accessing the drive assembly. Verify sheave alignment and sheave condition before installing the replacement belt, and set tension according to the equipment manufacturer specifications. Do not use belt dressing compounds on cogged V-belts, as these can degrade rubber and reduce service life.