Dorman 624-553 Automatic Transmission Oil Cooler Hose Assembly - Inlet and Outlet

Automatic Transmission Oil Cooler Hose Assembly

Dorman 624-553 is a replacement automatic transmission oil cooler hose assembly built with metal and rubber components for fluid transfer between the transmission and the transmission oil cooler. It is made for direct replacement service on select Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, Sierra 3500 HD, Suburban 2500, and Yukon XL 2500 applications.

For buyers searching for a transmission cooler line for 2007-2010 Chevrolet Silverado HD or a transmission oil cooler hose assembly for 2008-2013 GMC Yukon XL 2500 and Suburban 2500, this part number 624-553 matches the listed inlet and outlet applications.

• Metal and rubber molded hose assembly
• Black and silver hose finish
• 88-inch length
• Male quick disconnect end 1 and block connector end 2
• Includes gasket or seal
• Maximum working pressure: 100
• Operating temperature range: -40 Deg. F to 329 Deg. F
• Flexible molded assembly for routing in transmission cooler line service

Detailed Product Overview

This Dorman transmission oil cooler hose assembly is engineered to replace the fluid line that carries automatic transmission oil between the transmission and the cooler. The molded metal-and-rubber construction supports leak-free fluid delivery, while the included seal helps maintain a secure connection at the listed quick-disconnect and block-connector ends. Part number 624-553 is a practical replacement for vehicles that need a direct-fit transmission cooler hose in inlet and outlet service.

This part cross-references 15908470 for the same application. It is a direct replacement choice for 2007-2010 Chevrolet Silverado 2500 HD and Silverado 3500 HD, plus 2007-2010 GMC Sierra 2500 HD and Sierra 3500 HD. It also fits 2008-2013 Chevrolet Suburban 2500 and GMC Yukon XL 2500, wo/RPO Code K06 (Electric Cooling Fan).

What This Part Helps Address

• Transmission fluid leaks at a damaged cooler hose
• Cracked or deteriorated rubber sections in the original line
• Corrosion or fatigue in the factory transmission cooler hose assembly
• Restricted fluid transfer between the transmission and cooler
• Failed quick-disconnect or connector sealing surfaces

Installation Notes and Tips

Verify the end styles, length, and vehicle notes before installation. This assembly uses a male quick disconnect on one end and a block connector on the other, so the connection points must match the original routing. Confirm fitment for the exact year, make, model, and note listed for your vehicle, including the wo/RPO Code K06 requirement on applicable Suburban 2500 and Yukon XL 2500 models.

Quality Assurance

Dorman replacement parts are built to match the service needs of the original cooling line application. This hose assembly uses quality metal and rubber materials and includes a seal for secure fluid transfer in transmission cooler service.