Dorman 625-170 Engine Oil Cooler Hose Assembly - Outlet (Lower)

Engine Oil Cooler Hose Assembly for OE-Style Repair

Dorman 625-170 is an engine oil cooler hose assembly built to match the fit and function of the original equipment line. It restores oil circulation between the oil cooler and engine on select Chevrolet G10, G20, G30 and GMC G1500, G2500, G3500 vans.

• Engine oil cooler hose assembly for proper oil flow between the cooler and engine
• Rubber/metal construction for the required flexibility and routing
• Male threads on both ends for OE-style connection points
• Natural finish and 40.8-inch length
• Direct replacement for select outlet (lower) applications

Detailed Product Overview

This Dorman oil cooler line is engineered as a direct-fit replacement for the original hose assembly used in select Chevrolet and GMC full-size vans. Part number 625-170 helps restore the oil cooler circuit by replacing a worn, leaking, or damaged lower outlet line with a component that follows the original routing and connection style. It cross-references 12472218 and B64236 for the same application.

Compatible With 1985-1993 Chevrolet G10, outlet (lower); 1985-1993 Chevrolet G20, outlet (lower); 1985-1993 Chevrolet G30, outlet (lower); 1985-1993 GMC G1500, outlet (lower); 1985-1993 GMC G2500, outlet (lower); and 1985-1993 GMC G3500, outlet (lower). For 1992-1993 Chevrolet G10, G20, G30 and GMC G1500, G2500, G3500 applications, this line is listed for vehicles without manual air conditioning controls.

Common Repair Symptoms

• Oil seepage or leakage at the cooler line
• Cracked, hardened, or deteriorated hose material
• Restricted oil circulation through the cooler circuit
• Damaged threads or poor sealing at the line ends
• Need for an OE-style replacement during engine cooling system repair

Installation Notes and Tips

Verify the outlet (lower) position, thread style, and vehicle configuration before installation. Confirm the hose routing matches the original line and inspect mating surfaces, fittings, and adjacent oil cooler components for wear or contamination. This part number 625-170 is intended for the listed Chevrolet G10, G20, G30 and GMC G1500, G2500, G3500 applications only.

Quality Assurance

Dorman manufactures replacement components that mirror original equipment fit and function for repair and restoration work. This oil cooler hose assembly is built to support reliable oil circulation in the specified applications.