Dorman 625-637 Engine Oil Cooler Hose Assembly - Inlet and Outlet Assembly

Engine Oil Cooler Hose Assembly for Hummer H2

This Dorman engine oil cooler hose assembly is built to match the fit and function of the original equipment line for restoring oil flow between the oil cooler and engine. It is a direct-fit replacement for 2003-2004 Hummer H2 inlet and outlet assembly applications, including the 2004 Hummer H2 with a 7.75 mm length flared end tube.

Key Features

• Rubber/metal construction for oil cooler line service
• 28-inch length for the specified routing and connection points
• Natural finish
• Block connector on one end and quick disconnect on the other
• Direct replacement for OE-style oil circulation repair
• Part number 625-637 for easy identification

Detailed Description

Designed as an engine oil cooler hose assembly, this Dorman 625-637 replacement follows the original component layout to help maintain proper oil circulation between the oil cooler and engine. The rubber/metal construction supports the demands of underhood fluid routing, while the block connector and quick disconnect ends match the factory connection style used on the listed Hummer H2 applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Compatible With 2003 Hummer H2, inlet and outlet assembly. Compatible With 2004 Hummer H2, inlet and outlet assembly. If you are searching for a Dorman 625-637 oil cooler line for Hummer H2 repair, this assembly provides the OE-style fit needed for a proper replacement.

What It Helps Fix

• Oil cooler line leaks at worn hose sections or connection points
• Restricted oil flow between the engine and oil cooler
• Damaged or brittle factory hose assemblies
• Failed quick-disconnect or block-connector interfaces
• Oil circulation issues related to a compromised cooler line

Installation Notes and Tips

Verify the vehicle year, engine oil cooler routing, and connector style before installation. This assembly is listed for inlet and outlet assembly use on 2003-2004 Hummer H2 models, and the 2004 application notes a 7.75 mm length flared end tube. Confirm the existing line length, end types, and routing path against the original part before removal. Part number 625-637 should be matched to the vehicle’s factory configuration for correct fitment.

Quality Assurance

Dorman manufactures this hose assembly to match OE fit and function for repair and restoration of the oil cooler circuit. The part is engineered for direct replacement use on the listed Hummer H2 applications and is identified by part number 625-637.