Dorman 667-321 Turbocharger Coolant Line - Return (Right)

Dorman 667-321 Turbocharger Coolant Line

Dorman 667-321 is a turbocharger coolant line built to match the fit and function of the original line on specified Mercedes-Benz applications. This molded nylon assembly is made for the return (right) side and uses OEM-style construction for reliable coolant routing in turbocharged systems.

Key Features

• Direct replacement turbocharger coolant line for specified Mercedes-Benz vehicles
• Molded nylon construction with black fittings and line body
• OEM-grade design for fit and function alignment with the original part
• Return (Right) position application
• End configuration: female and male connections with 14mm x 10 threaded fitting diameter at end 1
• Centerline length: 14 inches; outside diameter: 0.323 inches

Detailed Description

This Dorman turbocharger coolant line is engineered for Mercedes-Benz CLS550, E550, CL550, CL63 AMG, E63 AMG, ML63 AMG, and S63 AMG applications listed below. The molded nylon design helps maintain proper coolant flow to and from the turbocharger, while the OEM-style shape supports a clean, factory-like routing path. Part number 667-321 is a practical replacement when the original coolant line is damaged, leaking, or no longer holding its shape.

This part cross-references Mercedes-Benz OE number 2782000851 for the same application.

Fitment

• Fits 2012-2018 Mercedes-Benz CLS550, Return (Right), w/Option Code 228 (Auxiliary Heater)
• Fits 2012-2017 Mercedes-Benz E550, Return (Right), w/Option Code 228 (Auxiliary Heater)
• Fits 2011-2013 Mercedes-Benz CL550, Return (Right)
• Fits 2012 Mercedes-Benz CL63 AMG, Return (Right), To 12/13/11
• Fits 2012 Mercedes-Benz E63 AMG, Return (Right), To 12/13/11
• Fits 2012 Mercedes-Benz ML63 AMG, Return (Right), To 12/13/11
• Fits 2012 Mercedes-Benz S63 AMG, Return (Right), To 12/13/11
• Fits 2011 Mercedes-Benz CL63 AMG, Return (Right)
• Fits 2011 Mercedes-Benz S63 AMG, Return (Right)

Installation Notes and Tips

Verify the vehicle’s model year, engine configuration, and option code before ordering. Confirm the return (right) routing, end genders, and fitting dimensions against the original line to ensure correct installation on Mercedes-Benz CLS550, E550, and AMG applications. Inspect adjacent coolant hoses and turbocharger connections for wear before reassembly.

Quality Assurance

Dorman designs this coolant line to match original fit and function using quality materials for dependable performance and durability. The OEM-grade construction supports a factory-style replacement for turbocharger coolant line service on the listed Mercedes-Benz vehicles.