Gates CO34953 Engine Coolant Thermostat / Water Outlet Assembly

Coolant Outlet Assembly for OE-Style Cooling Repair

The Gates Coolant Outlet CO34953 is a thermostat housing and water outlet assembly built for direct replacement service on select Buick, Chevrolet, Pontiac, and Saturn vehicles. It combines a 180 degree thermostat with a seal and OE-style fitment for cooling system repairs that need accurate temperature control and dependable sealing.

Key Features

• Gates Coolant Outlet line for thermostat housing and water outlet applications
• Part number CO34953
• Cast aluminum and stamped steel construction
• Thermostat housing assembly with 180 degree F thermostat
• Seal included
• 3-bolt housing design
• Multiple outlet diameters for application-specific routing
• OE-style fit and performance for select GM platforms

Product Details

Gates CO34953 is engineered as a coolant outlet assembly for vehicles that use a combined thermostat housing and water outlet design. The housing uses cast aluminum and stamped steel materials to address common aftermarket fit and durability concerns while maintaining the original-style layout. This part is listed for 2011-2017 Buick Regal, 2012-2017 Buick Verano, 2010-2016 Buick LaCrosse, 2012-2015 Chevrolet Captiva Sport, 2014 Chevrolet Impala, 2008-2014 Chevrolet Malibu, 2008-2011 Chevrolet HHR, 2008-2010 Chevrolet Cobalt, 2007-2010 Pontiac G5, 2008-2010 Pontiac G6, 2006-2010 Saturn Vue, 2008-2009 Pontiac Solstice, 2007-2009 Saturn Aura, 2007-2009 Saturn Sky, and 2006-2007 Saturn Ion. This part cross-references TA2009 for the same application.

Common Cooling System Issues This Part Can Address

• Coolant leaks at the thermostat housing or outlet connection
• Cracked or warped plastic housing replacement needs
• Thermostat-related temperature control problems
• Sealing issues at the coolant outlet interface
• Service replacement for worn OE-style coolant outlet assemblies

Installation Notes and Tips

Verify engine application and outlet configuration before installation, since this assembly uses multiple outlet inside and outside diameters. Clean the mating surfaces thoroughly and inspect the cooling system for contamination, hose wear, or pressure-related damage before reassembly. Follow the vehicle service procedure for coolant refill and air bleeding after installation to help restore proper circulation and thermostat operation.

Quality Assurance

Gates positions the Coolant Outlet line as a practical replacement solution for common design, material, and manufacturing issues found in many aftermarket cooling parts. CO34953 is built to fit and perform like the original thermostat housing assembly while supporting long service life in normal cooling system operation.