Dorman 667-553 Turbocharger Coolant Line - Return

Turbocharger Coolant Line for BMW Applications

This Dorman turbocharger coolant line is built to match the fit and function of the original return line on specified BMW vehicles. The stainless steel construction and molded assembly shape support reliable coolant routing in the turbocharger system.

• Direct replacement turbocharger coolant line for the return circuit
• Stainless steel material for durability and corrosion resistance
• Molded assembly design for OE-style routing and fit
• Female inlet and outlet fittings
• Silver finish with stainless steel fittings
• Part number 667-553 for application lookup and ordering

Detailed Product Overview

Dorman 667-553 is a turbocharger coolant line engineered for specified BMW turbocharged models, including BMW 320i, 328i, 528i, X3, X4, X5, X1, Z4, 228i, and 428i applications. It is designed as a return line replacement that follows the original line layout, helping maintain proper coolant flow through the turbocharger system. The line measures 5.4 inches in length, with a 0.31-inch inside diameter and 0.56-inch outside diameter, and uses female-to-female end connections. This part cross-references BMW OE number 11537588936 for the same application.

What This Part Helps Address

• Coolant line leakage at the turbocharger return circuit
• Cracked, corroded, or heat-damaged factory coolant tubing
• Restricted coolant flow caused by a deteriorated line
• Fitment issues from an incorrect replacement hose or tube
• Service needs on turbocharged BMW cooling system repairs

Installation Notes and Tips

Verify vehicle fitment by year, model, and return-line position before installation. This coolant line uses female fittings and threaded fittings are not used. Confirm the routing matches the original molded assembly on the vehicle to ensure proper alignment with the turbocharger cooling circuit.

Quality Assurance

Dorman designs this turbocharger coolant line to match original fit and function using quality materials for dependable performance and durability. It is intended as a direct replacement for specified BMW turbocharger coolant line applications.