Gates TR20426 Accessory Drive Belt - Fan and Generator

Truck & Bus V-Belt for Heavy-Duty Drive Systems

The Gates TR20426 is a Truck & Bus V-Belt built for accessory drive systems that see frequent load changes and demanding service. It is a notched, single-strand S-section belt made with EPDM and polyester cord for stable operation in heavy-duty truck, bus, and off-road equipment applications.

Fits 1950-1952 Chevrolet Bel Air, Fan and Generator. This belt also cross-references Dayco 23425 for the same application.

Key Features

• Gates Truck & Bus V-Belt line for heavy-duty accessory drive service
• Notched construction helps the belt flex around pulleys
• EPDM belt material for durability in demanding engine compartments
• Polyester cord material for strength and dimensional stability
• S-section profile with a 30-degree angle and 15 mm top width
• Effective length: 1082 mm (42.59 in); outside circumference: 1092 mm (42.99 in)

Detailed Description

Gates TR20426 is part of the Truck & Bus V-Belt product line, which is engineered for heavy-duty truck, bus, and off-road equipment use. The notched profile improves flexibility, while the EPDM construction and polyester cord support consistent belt tracking in accessory drive systems. For buyers searching for a Chevrolet Bel Air fan and generator belt, this part number provides a direct match for the listed 1950-1952 applications.

Use TR20426 when you need a replacement accessory drive belt for a fan and generator setup that calls for an S-section Truck & Bus V-Belt. The Gates TR20426 part number is also useful when cross-referencing service records, catalog listings, or OE-style replacement searches for vintage Chevrolet Bel Air models.

What This Belt Helps Address

• Squealing or slipping accessory drive belts
• Cracked, glazed, or worn V-belt surfaces
• Loss of belt tension in fan and generator drive systems
• Reduced belt flexibility in pulley routing
• Replacement needs for 1950-1952 Chevrolet Bel Air fan and generator applications

Installation Notes and Tips

Verify the belt section, effective length, and outside circumference against the original belt before installation. Inspect pulleys for wear, alignment, and contamination, since pulley condition affects belt life and tracking. Confirm the accessory drive routing and tension specification for the vehicle before returning it to service.

Quality Assurance

Gates manufactures this belt for heavy-duty service in truck, bus, and off-road environments, with materials selected for shock-load absorption and long-term accessory drive performance. The TR20426 part number is supported by Gates catalog identification for accurate replacement matching.