Gates CO34819 Engine Coolant Water Outlet

Gates Coolant Outlet CO34819

The Gates Coolant Outlet CO34819 is an engine coolant water outlet built for direct replacement in select Ford, Mercury, Mazda, and Lincoln applications. It is designed to match original fit and function while addressing common aftermarket material and design concerns.

Gates Coolant Outlet line coverage includes water outlets and complete thermostat housing assemblies, giving technicians a practical OE-style replacement option for cooling system service. This CO34819 coolant outlet includes a seal and uses a plastic housing construction.

Key Features

• Engine coolant water outlet / thermostat housing design
• Plastic construction for OE-style replacement fitment
• Includes seal for installation
• 3 bolt holes for mounting
• Outlet dimensions: 1.49 in, 1.25 in, 1.24 in, and .74 in outside diameter; 1.29 in, 1.04 in, 1.02 in, and .53 in inside diameter
• Direct replacement for select Ford Fusion, Mercury Milan, Mazda 6, and related cooling system applications
• Part number CO34819 for catalog and cross-reference lookup

Product Details

Gates CO34819 is a coolant outlet assembly used in thermostat housing applications where the engine cooling system routes coolant through a molded outlet connection. It is engineered to fit and perform like the original part, with a focus on long service life and consistent sealing performance. This makes it a practical choice for cooling system repairs on vehicles such as the Ford Fusion, Mercury Milan, Mazda 6, and Mazda Tribute.

This part cross-references Dorman OE Solutions 902-778 for the same application. The Gates Coolant Outlet product line is built to provide a cost-effective replacement path for common thermostat housing and water outlet service needs without changing the original cooling system layout.

Common Repair Uses

• Cracked or leaking thermostat housing outlet
• Coolant seepage at the outlet seal surface
• Cooling system service on aging plastic housing components
• Replacement after warped or damaged coolant outlet flanges
• Restoring proper coolant flow routing in the thermostat housing

Installation Notes

Verify the outlet diameter, bolt-hole count, and housing style against the original part before installation. Clean the mating surfaces thoroughly and inspect the sealing area for corrosion, residue, or old gasket material. This CO34819 is listed with a seal and no gasket, so confirm the vehicle’s cooling system configuration before assembly.

Compatible With: 2006-2009 Ford Fusion, N/A; 2005-2009 Mercury Mariner, N/A; 2006-2009 Mercury Milan, N/A; 2005-2008 Ford Escape, N/A; 2003-2008 Mazda 6, N/A; 2008 Mazda Tribute, N/A; 2005-2006 Mazda Tribute, N/A; 2006 Lincoln Zephyr, N/A; 2002-2006 Mazda MPV, N/A.

Quality Assurance

Gates designs this coolant outlet to address common aftermarket design, manufacturing, and material issues while maintaining OE-style fit and function. The CO34819 is intended as a durable replacement for thermostat housing service in the listed Ford, Mercury, Mazda, and Lincoln applications.