Dorman 625-134 Engine Oil Cooler Hose Assembly - Outlet (Upper)

Engine Oil Cooler Hose Assembly for GM Trucks

Dorman 625-134 is an engine oil cooler hose assembly built to match the fit and function of the original equipment line for restoring oil circulation between the engine and oil cooler. It uses a rubber and metal construction with a male-threaded end and a quick-disconnect end for a direct replacement on select Chevrolet and GMC trucks.

This part is a fitment-based replacement for 1988-1994 Chevrolet C/K 1500, 2500, and 3500 models and 1988-1994 GMC C/K 1500, 2500, and 3500 models with the listed cooling configurations. Part number 625-134 is also referenced for OE-style service applications on these trucks.

Key Features

• Engine oil cooler hose assembly for oil circulation between the engine and cooler
• Rubber/metal construction for the specified OE-style routing and connection points
• Male threads on one end and quick disconnect on the other
• 67.3-inch length
• Natural finish
• Fits the outlet (upper) position on listed Chevrolet and GMC applications

Detailed Description

Dorman 625-134 is engineered as a direct-fit replacement for the engine oil cooler line used on select Chevrolet C1500, C2500, C3500, K1500, K2500, and K3500 trucks, as well as GMC C1500, C2500, C3500, K1500, K2500, and K3500 trucks. It is listed for 1988-1994 vehicles with heavy duty cooling and for 1992-1994 and 1994 vehicles with GVW less than 12,000 lbs., depending on application. The hose assembly is intended to restore proper oil flow between the engine and oil cooler when the original line is worn, leaking, or no longer sealing correctly. This part cross-references OE numbers 12472265 and B64252 for the same application.

What It Helps Fix

• Oil leaks at the cooler line connection points
• Restricted oil circulation between the engine and oil cooler
• Damaged or deteriorated hose material
• Failed quick-disconnect or threaded connection sealing
• Service issues on the upper outlet oil cooler line

Installation Notes and Tips

Verify the vehicle’s cooling package, GVW rating, and outlet (upper) line position before ordering. Confirm the connection style matches the existing line: male threads on one end and quick disconnect on the other. Inspect mating fittings, seals, and routing points before installation to help ensure a proper seal and correct hose alignment on Chevrolet and GMC C/K trucks.

Quality Assurance

Dorman manufactures this hose assembly to match OE fit and function for repair and restoration of the original oil cooler line path. The part is built for the specified GM truck applications and connection types listed above.