Gates CO34975 Engine Coolant Water Outlet

Gates Coolant Outlet CO34975

The Gates CO34975 coolant outlet is a thermostat housing assembly built for direct replacement on a wide range of GM vehicles. It is engineered to match original fit and function while addressing common aftermarket concerns with material and design consistency.

Gates Coolant Outlet parts are part of a focused product line that covers everything from water outlets to complete thermostat housing assemblies. For buyers searching for a thermostat housing for a Buick Regal, Chevrolet Malibu, or Saturn Vue, this line is built to deliver OE-style fit and dependable service life.

Key Features

• Engine coolant water outlet / thermostat housing application
• Cast aluminum and steel construction for strength and heat resistance
• 3 bolt holes for direct mounting
• Outlet inside diameter: .56 in
• Outlet outside diameter: .75 in
• No gasket included
• No bypass holes
• OE exact: No

Detailed Description

Part number CO34975 is a Gates thermostat housing designed for vehicles that use an engine coolant water outlet in the cooling system. It is a practical replacement for worn, cracked, or leaking housings on applications such as the 2006-2014 Chevrolet Malibu, 2006-2010 Pontiac G6, and 2006-2010 Saturn Vue. This part cross-references GM 12597172 and CH2009 for the same application.

Built from cast aluminum and steel, the housing is intended to provide a durable sealing surface and stable coolant routing. The design follows the original style of the factory outlet so it can be used where a direct-fit thermostat housing replacement is needed on Buick Regal, Buick Verano, and Chevrolet Cobalt applications.

What It Helps Fix

• Coolant leaks at the thermostat housing or outlet
• Cracked or corroded factory coolant outlet assemblies
• Overheating caused by a failing water outlet
• Coolant loss from a damaged sealing surface
• Service issues on high-mileage GM cooling systems

Installation Notes and Tips

Verify the engine coolant outlet style, bolt pattern, and hose connection dimensions before installation. This housing uses 3 bolt holes and does not include a gasket, so the sealing components must match the vehicle’s service requirements. Confirm fitment for the exact year, make, and model before ordering CO34975.

Compatible With: 2011-2017 Buick Regal; 2012-2017 Buick Verano; 2010-2016 Buick LaCrosse; 2012-2015 Chevrolet Captiva Sport; 2014 Chevrolet Impala; 2006-2014 Chevrolet Malibu; 2006-2011 Chevrolet HHR; 2006-2010 Chevrolet Cobalt; 2007-2010 Pontiac G5; 2006-2010 Pontiac G6; 2006-2010 Saturn Vue; 2006-2009 Pontiac Solstice; 2007-2009 Saturn Aura; 2007-2009 Saturn Sky; 2006-2007 Saturn Ion.

Quality Assurance

Gates designs this coolant outlet program to address common material and manufacturing issues found in many aftermarket alternatives, with coverage intended to match original fit and performance expectations for long service life.