Dorman 667-318 Turbocharger Coolant Line - Supply (Right)

Dorman Turbocharger Coolant Line for BMW

Dorman 667-318 is a turbocharger coolant line engineered to match the fit and function of the original line on specified BMW applications. Built from aluminum with molded-assembly construction, it is designed for reliable coolant routing in turbocharged systems on BMW 550i, 650i, and 750i models.

• Direct-fit turbocharger coolant line for specified BMW turbo applications
• Aluminum construction with a black finish
• Molded assembly shape for OE-style routing and placement
• Male inlet and outlet fittings
• End 1 threaded fitting diameter: 14mm x 10
• Centerline length: 9 in.
• Outside diameter: 0.43 in.; inside diameter: 0.33 in.
• OEM-grade replacement for the original coolant line

Fitment Details

Compatible with BMW turbocharger coolant line applications including Fits 2013-2019 BMW 650i Gran Coupe, Supply (Right); Fits 2013-2019 BMW 650i xDrive Gran Coupe, Supply (Right); Fits 2012-2018 BMW 650i, Supply (Right); Fits 2012-2018 BMW 650i xDrive, Supply (Right); Fits 2010-2017 BMW 550i GT xDrive, Supply (Right); Fits 2011-2016 BMW 550i, Supply (Right); Fits 2011-2016 BMW 550i xDrive, Supply (Right); Fits 2011-2015 BMW 550i GT, Supply (Right); Fits 2009-2015 BMW 750i, Supply (Right); Fits 2010-2015 BMW 750i xDrive, Supply (Right); Fits 2009-2015 BMW 750Li, Supply (Right); Fits 2010-2015 BMW 750Li xDrive, Supply (Right).

Detailed Description

This Dorman turbocharger coolant line, part number 667-318, is built for BMW turbocharged engines that require a right-side supply line with OE-style fitment. The aluminum construction and molded assembly design help maintain the original routing and connection geometry, while the male fittings and 14mm x 10 threaded end 1 specification support proper attachment at the factory connection points. For shoppers searching for a BMW 550i turbo coolant line, BMW 650i coolant line, or BMW 750i turbocharger coolant line, 667-318 provides a direct replacement option for the listed vehicles.

This part cross-references Genuine 11537578687 and Rein CHT0736 for the same application.

Common Replacement Reasons

• Leaking or damaged turbocharger coolant line
• Cracked, corroded, or heat-stressed factory line
• Coolant seepage near the turbocharger supply side
• Loss of proper coolant flow through the turbo system
• Need for an OE-style replacement on BMW turbo applications

Installation Notes and Tips

Verify the vehicle’s engine and right-side supply-line configuration before installation. Confirm the fitting style, threaded end dimensions, and line routing against the original part to ensure correct placement on BMW 550i, 650i, and 750i applications. Inspect adjoining seals, clamps, and connection points for wear before reassembly.

Quality Assurance

Dorman designs this coolant line to match the fit and function of the original component on the specified vehicles. The part is manufactured from quality materials for dependable performance and durability in turbocharger cooling service.