Gates CO34910 Engine Coolant Water Outlet

Gates Coolant Outlet for Volkswagen and Audi

The Gates Coolant Outlet CO34910 is an OE-style engine coolant water outlet built for select Volkswagen and Audi applications. It is designed as a direct-fit thermostat housing assembly with the correct outlet sizing and bolt pattern for service replacement on covered vehicles.

Gates CO34910 is part of the Gates Coolant Outlet line, which focuses on replacing common aftermarket problem areas with a fit-and-function approach that matches original equipment requirements. For drivers servicing a Volkswagen Passat, Volkswagen CC, Volkswagen Touareg, or Audi Q7, this thermostat housing is built for the application-specific cooling system layout.

Key Features

• Part number: CO34910
• Engine coolant water outlet / thermostat housing assembly
• Plastic construction
• OE exact fit design
• 3 bolt holes for mounting
• No gasket quantity listed
• Outlet sizes include 1.54 in, 1.27 in, .98 in, and .63 in outside diameters
• Outlet inside diameters include 1.31 in, 1.04 in, .775 in, and .39 in
• Contents listed as thermostat housing

Detailed Description

This Gates coolant outlet is engineered for direct replacement of the original thermostat housing on select Volkswagen and Audi cooling systems. The housing uses a plastic design with OE exact dimensions, including the specified outlet diameters and 3-bolt mounting pattern, to match the factory configuration. Gates CO34910 is intended for service work where the original coolant outlet or thermostat housing has cracked, warped, or begun leaking.

Compatible With 2018-2021 Volkswagen Atlas, N/A coolant outlet; 2020-2021 Volkswagen Atlas Cross Sport, N/A coolant outlet; 2017-2018 Volkswagen Passat, N/A coolant outlet; 2017 Volkswagen CC, N/A coolant outlet; 2017 Volkswagen Touareg, N/A coolant outlet; 2010-2011 Volkswagen CC, N/A thermostat housing/coolant outlet; 2010-2011 Volkswagen Passat CC, N/A thermostat housing/coolant outlet; 2011 Volkswagen Touareg, N/A thermostat housing/coolant outlet; 2007-2010 Audi Q7, N/A engine coolant water outlet/thermostat housing; 2007-2010 Volkswagen Touareg, N/A engine coolant water outlet/thermostat housing; 2009 Volkswagen CC, N/A engine coolant water outlet/thermostat housing; 2009 Volkswagen Passat CC, N/A engine coolant water outlet/thermostat housing; 2007-2008 Volkswagen Passat, N/A engine coolant water outlet/thermostat housing.

This part cross-references 03H121117A and 03H121117B for the same application.

What It Helps Fix

• Coolant leaks from a cracked thermostat housing
• Warped or damaged coolant outlet sealing surfaces
• Incorrect fitment from mismatched aftermarket housings
• Cooling system service issues on Volkswagen Passat, CC, Touareg, and Audi Q7 models
• Replacement needs for OE-style engine coolant water outlet assemblies

Installation Notes and Tips

Verify the original part number, outlet layout, and bolt-hole count before installation. This housing is listed with no gasket quantity and no seals, so confirm all required sealing components for your specific repair before beginning service. Match the vehicle application carefully, especially on 2010-2011 Volkswagen CC, Passat CC, and Touareg models noted as Jul. 31, 2010 & older.

Quality Assurance

Gates positions this Coolant Outlet line as a direct-fit replacement solution that addresses common design, manufacturing, and material issues seen in other aftermarket options. CO34910 is built to OE exact specifications for long service life in the covered Volkswagen and Audi applications.