Dorman 667-651 Turbocharger Coolant Line - Return

Dorman 667-651 Turbo Coolant Return Hose

Dorman 667-651 is a turbocharger coolant line built to match the fit and function of the original return hose on specified vehicles. It uses rubber construction and a molded assembly shape to support dependable coolant routing in turbocharged applications.

Key Features

• Turbocharger coolant return hose for OE-style replacement
• Rubber construction with black fittings and hose body
• Molded assembly design for a direct-fit layout
• Female end connections on both sides
• End 1 threaded fitting diameter: 14mm x 10
• Centerline length: 6.55 in.; inside diameter: 0.445 in.; outside diameter: 0.69 in.
• Standard replacement grade for specified Chevrolet and GMC turbo applications

Detailed Description

This turbo coolant return hose is engineered for vehicles that use a female-to-female coolant line in the turbocharger circuit. Dorman 667-651 is designed for direct replacement service on 2010-2016 Chevrolet Express 2500 and Express 3500, 2011-2016 Chevrolet Silverado 2500 HD and Silverado 3500 HD, 2010-2016 GMC Savana 2500 and Savana 3500, and 2011-2016 GMC Sierra 2500 HD and Sierra 3500 HD. The molded rubber construction helps maintain the original routing and connection style required for proper coolant return flow.

This part cross-references Carlson 12581 for the same application.

What It Helps Address

• Cracked or deteriorated turbo coolant return hose
• Coolant seepage at the turbocharger line
• Incorrect hose fit after prior repair work
• Heat-related rubber line wear in turbocharged systems
• Loss of proper coolant routing through the return circuit

Installation Notes and Tips

Verify the vehicle’s turbo coolant line routing, end style, and threaded fitting size before installation. Confirm fitment for the exact year, make, and model listed above, including the return hose application on Chevrolet Express, Silverado HD, GMC Savana, and GMC Sierra HD trucks and vans. Inspect adjoining coolant connections and sealing surfaces for wear or contamination before installing the replacement line.

Quality Assurance

Dorman designs this coolant line to match original fit and function using quality materials for reliable performance and durability. It is a standard replacement part for specified turbocharger coolant line applications.