Dorman 902-423 Engine Coolant Pipe

Engine Coolant Pipe for Audi and Volkswagen

Dorman 902-423 is an engine coolant pipe built to match the fit and function of the original equipment part. It helps restore leak-free cooling system performance on select Audi TT Quattro, Audi A3, Volkswagen Golf, Jetta, EuroVan, Eos, and R32 applications.

• Direct replacement engine coolant pipe for OE-style fit and routing
• Durable plastic construction for underhood cooling system use
• Black finish with a 14.125 in. overall length
• 1.2 in. inside diameter at both ends for consistent hose connection sizing
• Maximum working pressure rating of 50 PSI
• Package contents include coolant tube and O-rings

Detailed Product Overview

This Dorman coolant pipe is engineered for vehicles that use a single inside diameter hose connection and a black plastic coolant tube layout. The part number 902-423 is designed to replace the original coolant pipe on applications such as the 2006-2009 Audi A3 3.2L, 2004-2009 Audi TT Quattro, and 2002-2005 Volkswagen Golf. It also serves select Volkswagen Jetta, EuroVan, Eos, and R32 models where the OE pipe configuration matches the listed dimensions and connection style. This part cross-references Genuine 022121050 and Motorad CH2423 for the same application.

What This Part Helps Address

• Coolant leaks from a cracked or aged pipe
• Loss of cooling system pressure
• Improper hose sealing at the pipe ends
• Overheating caused by coolant loss
• Replacement needs after plastic pipe deterioration

Installation Notes and Tips

Verify the vehicle’s engine configuration, hose end inside diameter, and overall pipe length before installation. Replace the O-rings during service and inspect adjoining hoses and connection points for wear, swelling, or residue. This coolant pipe is listed for specific fitments only, including Fits 2010 Audi TT Quattro, N/A; Fits 2006-2009 Audi A3, N/A; Fits 2005-2009 Audi A3 Quattro, N/A; Fits 2004-2009 Audi TT Quattro, N/A; Fits 2007-2008 Volkswagen Eos, N/A; Fits 2008 Volkswagen R32, N/A; Fits 2004 Volkswagen R32, N/A; Fits 2002-2005 Volkswagen Golf, N/A; Fits 2002-2004 Volkswagen Jetta, N/A; and Fits 1999-2003 Volkswagen EuroVan, N/A.

Quality Assurance

Dorman manufactures this coolant pipe to match OE fit and function and tests it for quality before release. The goal is dependable cooling system service on the listed Audi and Volkswagen applications.