Dorman 625-143 Engine Oil Cooler Hose Assembly - Inlet (Driver Side)

Dorman 625-143 Engine Oil Cooler Hose Assembly

This Dorman engine oil cooler hose assembly restores the oil flow path between the oil cooler and engine on select GM trucks and SUVs. Built with rubber and metal construction, it is made to match the original equipment fit and function for a direct repair on applications such as Chevrolet C1500, GMC K2500, and Tahoe.

• OE-style engine oil cooler hose assembly for proper oil circulation
• Rubber/metal construction for the required balance of flexibility and strength
• 8-inch length with natural finish
• Male threads on one end and quick disconnect on the other
• Direct replacement for the inlet (driver side) oil cooler line on listed vehicles
• Part number 625-143 for application matching and catalog lookup

Detailed Product Overview

Dorman 625-143 is an engine oil cooler hose assembly engineered to replace the original line that carries oil between the cooler and the engine. It is built to match the fit and function of the OE component, helping maintain proper oil circulation in vehicles that rely on a driver-side inlet connection. This part is a practical replacement for Chevrolet and GMC applications including C1500, K1500, C2500, K2500, C3500, Suburban, Tahoe, and Yukon models from the mid-1990s.

This part cross-references Sunsong 5801262 for the same application. The Dorman 625-143 part number is also useful when verifying the correct oil cooler line for GM truck and SUV service work.

What It Helps Repair

• Oil leaks at the cooler line connection
• Restricted or inconsistent oil flow between the engine and oil cooler
• Damaged, cracked, or corroded original hose assemblies
• Failed quick-disconnect or threaded end connections
• Service issues on the inlet (driver side) oil cooler line

Installation Notes and Fitment

Fits 1995-1997 Chevrolet C1500, inlet (driver side), connecting nut 7/8 in. across flats. Fits 1997 Chevrolet C1500 Suburban, inlet (driver side), connecting nut 7/8 in. across flats. Fits 1995-1997 Chevrolet C2500, inlet (driver side), connecting nut 7/8 in. across flats. Fits 1997 Chevrolet C2500 Suburban, inlet (driver side), connecting nut 7/8 in. across flats. Fits 1995-1997 Chevrolet C3500, inlet (driver side), except 15,000 lb. GVW; connecting nut 7/8 in. across flats. Fits 1995-1997 Chevrolet K1500, inlet (driver side), connecting nut 7/8 in. across flats. Fits 1997 Chevrolet K1500 Suburban, inlet (driver side), connecting nut 7/8 in. across flats. Fits 1995-1997 Chevrolet K2500, inlet (driver side), connecting nut 7/8 in. across flats. Fits 1997 Chevrolet K2500 Suburban, inlet (driver side), connecting nut 7/8 in. across flats. Fits 1995-1997 Chevrolet K3500, inlet (driver side), connecting nut 7/8 in. across flats. Fits 1997 Chevrolet Tahoe, inlet (driver side), connecting nut 7/8 in. across flats. Fits 1995-1997 GMC C1500, inlet (driver side), connecting nut 7/8 in. across flats. Fits 1997 GMC C1500 Suburban, inlet (driver side), connecting nut 7/8 in. across flats. Fits 1995-1997 GMC C2500, inlet (driver side), connecting nut 7/8 in. across flats. Fits 1997 GMC C2500 Suburban, inlet (driver side), connecting nut 7/8 in. across flats. Fits 1995-1997 GMC C3500, inlet (driver side), except 15,000 lb. GVW; connecting nut 7/8 in. across flats. Fits 1995-1997 GMC K1500, inlet (driver side), connecting nut 7/8 in. across flats. Fits 1997 GMC K1500 Suburban, inlet (driver side), connecting nut 7/8 in. across flats. Fits 1995-1997 GMC K2500, inlet (driver side), connecting nut 7/8 in. across flats. Fits 1997 GMC K2500 Suburban, inlet (driver side), connecting nut 7/8 in. across flats. Fits 1995-1997 GMC K3500, inlet (driver side), connecting nut 7/8 in. across flats. Fits 1997 GMC Yukon, inlet (driver side), connecting nut 7/8 in. across flats. Additional 1995-1996 Chevrolet and GMC Suburban, Tahoe, and Yukon applications are also listed for the inlet (driver side) position.

Before installation, confirm the threaded and quick-disconnect ends match the original line, and verify the vehicle’s oil cooler inlet location and connecting nut size. This part is listed for the inlet (driver side) position only.

Quality Assurance

Dorman manufactures replacement parts intended to match original equipment fit and function for repair and restoration work. This hose assembly is built as an OE-style service part for the listed Chevrolet and GMC applications.