Gates CO35082 Engine Coolant Water Outlet

Engine Coolant Water Outlet for GM Trucks

The Gates Coolant Outlet CO35082 is an aluminum thermostat cover built for direct replacement service on select Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD applications. It is engineered to match original fit and function while addressing common aftermarket concerns with material and manufacturing consistency.

Key Features

• Aluminum construction for durable cooling system service
• Thermostat cover style coolant outlet
• 4-bolt hole design for the listed GM truck applications
• Outlet outside diameter: 1.82 in.
• Outlet inside diameter: 1.38 in.
• Direct replacement part number CO35082

Product Details

Gates Coolant Outlet CO35082 is part of the Gates Coolant Outlet line, a product family focused on water outlets and complete thermostat housing assemblies for cooling system repair. This thermostat cover is built to fit and perform like the original component, making it a practical choice for 2011-2016 Chevrolet Silverado 2500 HD and Silverado 3500 HD models, as well as 2011-2016 GMC Sierra 2500 HD and Sierra 3500 HD trucks. This part cross-references GM OE numbers 12642717 and 12645998 for the same application.

Common Repair Uses

• Replacing a leaking or cracked engine coolant water outlet
• Restoring proper thermostat housing sealing on GM HD trucks
• Addressing coolant seepage around the outlet or cover area
• Repairing corrosion-related damage on aluminum cooling components
• Correcting fitment issues caused by worn or mismatched aftermarket parts

Installation Notes

Verify the outlet diameter, bolt pattern, and thermostat cover style against the removed part before installation. Clean the mating surfaces thoroughly and inspect the thermostat and surrounding cooling system components for wear or contamination. Confirm vehicle application by year, make, and model before ordering CO35082.

Quality Assurance

Gates positions this coolant outlet line as a cost-effective replacement solution with full line coverage for cooling system service. CO35082 is built to match original fit and performance expectations for the listed Chevrolet Silverado and GMC Sierra HD applications.