Sunsong 5801494 Automatic Transmission Oil Cooler Hose Assembly - Auxiliary Cooler (Driver Side) to Transmission

Automatic Transmission Oil Cooler Hose Assembly

Sunsong 5801494 is an automatic transmission oil cooler hose assembly for select Chevrolet Silverado 2500 HD, Silverado 3500, GMC Sierra 2500 HD, and Sierra 3500 applications. It is built for the auxiliary cooler (driver side) to transmission connection and follows OE-style fitment for the listed vehicles.

Key Features

• Precision-engineered hose assembly for the transmission oil cooler circuit
• Pre-bent tubing for exact fit on the listed applications
• High-grade steel tubing with zinc electroplating for corrosion resistance
• Includes required brackets, grommets, heat shields, bushings, and protective sleeves where applicable
• Operating temperature range of -40 to 350 degrees Fahrenheit
• Cross-reference: Dorman OE Solutions 624-294

Detailed Description

This Sunsong transmission oil cooler hose assembly is engineered to restore the factory routing and connection point between the auxiliary cooler on the driver side and the transmission. Sunsong 5801494 is made to meet or exceed original equipment performance standards, with steel tubing protected by a zinc coating to resist rust, road salt, moisture, and grime. It is a direct-fit solution for 2001-2003 Chevrolet Silverado 2500 HD and Silverado 3500, as well as 2001-2003 GMC Sierra 2500 HD and Sierra 3500 models with the specified transmission IDs.

What It Helps Fix

• Transmission fluid leaks at the cooler hose assembly
• Corrosion-damaged or rusted cooler lines
• Improper hose routing after line failure or replacement
• Heat-related deterioration in the transmission oil cooler circuit
• Fitment issues on worn OE-style hose assemblies

Installation Notes and Tips

Verify the vehicle year, make, model, and transmission ID before ordering. This part fits the auxiliary cooler (driver side) to transmission position and is listed for 2003 Chevrolet Silverado 2500 HD, 2003 Chevrolet Silverado 3500, 2003 GMC Sierra 2500 HD, 2003 GMC Sierra 3500 with trans ID KTW or KXK, plus 2001-2002 Chevrolet Silverado 2500 HD, Silverado 3500, GMC Sierra 2500 HD, and Sierra 3500. Compare the original line routing and connection points before installation.

Quality Assurance

Sunsong manufactures the tubing from high-grade steel and applies zinc electroplating for added corrosion and rust resistance. The assembly is built to meet or exceed OE performance standards and is rated for a wide operating temperature range to support demanding transmission cooling service.