Dorman 625-304 Engine Oil Cooler Hose Assembly - Outlet

Engine Oil Cooler Hose Assembly for OE-Style Repair

This Dorman engine oil cooler hose assembly is built to match the fit and function of the original equipment line for dependable oil circulation between the oil cooler and engine. It is a direct-fit replacement for select Chevrolet Silverado 2500 HD, Silverado 3500, Avalanche 2500, Suburban 2500, and GMC Sierra/Yukon XL applications.

• Brand: Dorman
• Part number: 625-304
• Rubber/metal construction for routing and durability
• 42-inch length
• Quick disconnect ends on both sides
• Natural finish
• Includes oil cooler line

Fitment and Application Details

Compatible with 2003-2007 Chevrolet and GMC trucks and SUVs in the outlet position, including 2007 Chevrolet Silverado 2500 HD Classic, 2007 Chevrolet Silverado 3500 Classic, 2007 GMC Sierra 2500 HD Classic, and 2007 GMC Sierra 3500 Classic. It also fits 2004-2006 Chevrolet Avalanche 2500, Silverado 2500 HD, Silverado 3500, Suburban 2500, GMC Sierra 2500 HD, Sierra 3500, and Yukon XL 2500, plus 2003 models with UCT tag notes where listed.

The Dorman 625-304 oil cooler hose assembly is engineered to restore the connection between the engine oil cooler and the engine when the original line is worn, leaking, or no longer sealing correctly. This OE-style replacement follows the original routing and connection style, making it a practical choice for maintaining proper oil flow in GM heavy-duty truck and SUV platforms.

This part cross-references Sunsong 5801297 for the same application.

Common Problems This Part Can Address

• Oil seepage or leakage at the cooler line connection
• Cracked, hardened, or deteriorated hose material
• Damaged quick-disconnect fittings
• Restricted oil circulation between the cooler and engine
• Fitment issues caused by a failed original outlet line

Installation Notes and Tips

Verify the outlet position and confirm vehicle-specific fitment before installation. Inspect the mating quick-disconnect ends, sealing surfaces, and adjacent oil cooler components for wear or contamination before connecting the new line. Proper routing is important to avoid contact with hot or moving components.

Quality Assurance

Dorman designs this hose assembly to match original equipment fit and function for reliable repair and restoration of oil circulation. It is intended as a direct replacement for the factory oil cooler line on the listed Chevrolet and GMC applications.