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The 4L320 is a fractional horsepower (FHP) V-belt designed for light-duty power transmission applications. Built with a wrapped construction, it features a fabric cover, rubber body, and polyester cord reinforcement. The result is a belt that resists oil and heat while remaining static-conductive - a combination required in many HVAC blower, fan, and small motor drive setups. With a 4L section profile, this belt delivers reliable torque transfer in standard FHP sheave systems. It is a direct cross-reference to belts in the same industry-standard 4L320 designation across multiple manufacturers.
This belt sees regular use in residential and light commercial HVAC equipment, including blower assemblies, exhaust fans, evaporative coolers, and small compressor drives. It is also commonly found in agricultural equipment, shop machinery, and appliance drive systems. HVAC technicians, refrigeration mechanics, and general maintenance professionals install this belt as a routine service replacement. Its wrapped design allows it to run in standard fixed-pitch sheave grooves without modification.
This belt is interchangeable with 4L320-designation belts from Browning, Goodyear, Carlisle, Gates, and Dayco. It is designed as a drop-in replacement in any application calling for a 4L section V-belt with a 32-inch outside length.
V-belt replacement is typically performed by HVAC technicians or general maintenance mechanics. Always de-energize and lock out the equipment before removing the belt guard or accessing the drive assembly. Do not pry or roll the belt onto sheaves with tools that could damage the cord reinforcement - use proper sheave alignment and tension adjustment per the equipment manufacturer guidelines. Inspect sheave grooves for wear before installing the new belt.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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