Gates CO34877 Engine Coolant Water Outlet

Gates Coolant Outlet for OE-Style Cooling Repair

The Gates Coolant Outlet CO34877 is an OE-exact engine coolant water outlet built for direct replacement in select Volkswagen and Audi applications. It is designed to match original fit and function while addressing common material and manufacturing issues found in many aftermarket thermostat housing parts.

Gates Coolant Outlets are part of the Coolant Outlet product line, which covers everything from individual water outlets to complete thermostat housing assemblies. This CO34877 thermostat housing is made from plastic and includes a seal for a direct-fit cooling system repair.

• OE exact replacement coolant outlet
• Thermostat housing style construction
• Plastic housing material
• Includes seal
• 8 bolt holes for secure mounting
• Multiple outlet inside and outside diameters for application-specific fitment
• Cross-reference: Dorman OE Solutions 902-920

Fitment and Application Details

Compatible with select Audi A3 Quattro, TT Quattro, and Volkswagen Eos, R32, Golf, Jetta, and EuroVan applications. Fits 2006-2009 Audi A3 Quattro, N/A; Fits 2007-2008 Volkswagen Eos, N/A; Fits 2008 Volkswagen R32, N/A; Fits 2004 Volkswagen R32, N/A; Fits 2004-2006 Audi TT Quattro, N/A; Fits 1999-2005 Volkswagen Golf, N/A; Fits 1999-2004 Volkswagen Jetta, N/A; Fits 2001-2003 Volkswagen EuroVan, N/A. Part number CO34877 is a direct-fit coolant outlet for these OE-style thermostat housing applications.

Common Problems This Part Can Address

• Cracked or leaking thermostat housing outlet
• Coolant seepage at the housing-to-engine sealing surface
• Warped or aged plastic outlet components
• Improper fit from non-OE-style replacement parts
• Cooling system service needs on Audi and Volkswagen models

Installation Notes

Verify the outlet shape, bolt-hole count, and hose connection diameters against the original part before installation. Clean the mating surface thoroughly and inspect the sealing area for corrosion, residue, or damage that could affect the seal. This part is listed with seal included and no gasket requirement.

Quality Assurance

Gates positions this coolant outlet line as a cost-effective OE-style replacement engineered to fit and perform like the original part. The CO34877 is built for long service life in the cooling system and is backed by Gates manufacturing standards for replacement cooling components.