Automatic Transmission Cooler Hose Assembly

Sunsong 5801134 is an automatic transmission oil cooler hose assembly built for direct replacement on select GM trucks and SUVs. It uses male quick connect ends, a steel-and-rubber construction, and a 44-inch overall length to match the original routing and connection points.

Compatible With 2001-2006 Chevrolet Silverado 2500 HD, outlet from radiator (lower); 2001-2006 GMC Sierra 2500 HD, outlet from radiator (lower); and other listed Chevrolet and GMC applications. This part cross-references Dorman OE Solutions 624-066 for the same application.

• Male quick connect fittings on both ends for OE-style connection
• Steel and rubber hose construction for transmission fluid routing
• 44 in. length / 1118 mm length for the specified vehicle applications
• Built to meet or exceed original equipment performance standards
• Operating temperature range from -40 to 350 degrees Fahrenheit
• Part number 5801134 for ordering and fitment verification

Fitment Details

This transmission cooler hose assembly is engineered for the outlet from radiator (lower) position and connects to the transmission on the following vehicles:

• Fits 2002-2006 Chevrolet Avalanche 2500, outlet from radiator (lower)
• Fits 2001-2006 Chevrolet Silverado 2500 HD, outlet from radiator (lower)
• Fits 2001-2006 Chevrolet Suburban 2500, outlet from radiator (lower)
• Fits 2001-2006 GMC Sierra 2500 HD, outlet from radiator (lower)
• Fits 2001-2006 GMC Yukon XL 2500, outlet from radiator (lower)

Detailed Description

Sunsong 5801134 is designed as a replacement automatic transmission oil cooler hose assembly for GM applications that use a lower radiator outlet connection. The hose assembly combines steel and rubber materials to follow the factory routing while maintaining a secure fluid path between the radiator and transmission. For buyers searching for a 2001-2006 Chevrolet Silverado 2500 HD transmission cooler hose or a 2001-2006 GMC Sierra 2500 HD lower radiator outlet hose, this part number provides a direct-fit solution.

The assembly is engineered to restore worn tubing and hose sections to original condition, with corrosion-resistant zinc-plated steel tubing to help resist rust from road salt, moisture, and grime. The operating range of -40 to 350 degrees Fahrenheit supports demanding underhood and road conditions. Use part number 5801134 when confirming the correct hose assembly for your vehicle.

Common Replacement Reasons

• Leaking transmission cooler hose at the radiator or transmission connection
• Corrosion or rust on the original steel tubing
• Cracked, hardened, or damaged hose sections
• Restricted fluid flow caused by aged cooler lines
• Incorrect routing or fitment after prior repair work

Installation Notes and Tips

Verify the vehicle year, make, model, and lower radiator outlet position before installation. Inspect the mating quick-connect ends, brackets, and surrounding line routing for wear or damage so the replacement assembly seats correctly. Confirm that the hose follows the original path and clears nearby heat sources and moving components.

Quality Assurance

Sunsong manufactures this hose assembly to meet or exceed original equipment performance standards. The pre-bent tubing, corrosion-resistant finish, and temperature-rated construction are intended to match factory-style service requirements for the listed Chevrolet and GMC applications.