Gates CO35005 Engine Coolant Hose Flange

Gates Coolant Outlet for GM Applications

The Gates CO35005 coolant outlet is an OE-style engine coolant hose flange built for select Chevrolet, Buick, and GMC vehicles. It is designed to match original fit and function while addressing common aftermarket material and design concerns with a practical, serviceable replacement.

Key Features

• Gates Coolant Outlet line for cooling system service
• Engine coolant hose flange design with integrated seal
• Plastic and rubber construction for application-specific fit
• Two-bolt mounting pattern
• Multiple outlet diameters: 0.63 in, 0.79 in, 1.12 in, and 1.19 in outside diameter
• Multiple inlet/outlet sizes: 0.50 in, 0.64 in, 0.93 in, and 1.00 in inside diameter
• Cross-reference: Dorman OE Solutions 902-2087

Product Details

Gates CO35005 is part of the Gates Coolant Outlet product line, which covers water outlets and thermostat housing assemblies for cooling system repair. This coolant outlet is engineered to fit and perform like the original component, helping restore proper coolant routing on vehicles such as the Chevrolet Malibu, Chevrolet Blazer, GMC Acadia, and Buick Envision. The integrated seal supports a cleaner service replacement, and the flange design is built for direct cooling system connection on the listed GM applications.

This part cross-references Dorman OE Solutions 902-2087 for the same application. The Gates CO35005 is also referenced by OE-style numbers 15-11087 and 12656446.

Common Cooling System Issues It Can Address

• Coolant leakage at the hose flange or outlet connection
• Cracked or warped plastic coolant outlet housing
• Failed sealing surface at the thermostat housing area
• Restricted or unstable coolant flow through a damaged outlet
• Service replacement for worn coolant hose flange assemblies

Installation Notes

• Verify engine and vehicle fitment before installation.
• Inspect the mating hose, seal surface, and mounting points for wear or contamination.
• Use the correct torque procedure for the two-bolt flange connection.
• Refill and bleed the cooling system according to the vehicle service procedure after installation.

Quality Assurance

Gates designs its coolant outlet line to provide a cost-effective replacement that follows original fit and performance expectations. The CO35005 is built for long service life in the specified GM cooling system applications, including 2013-2015 Chevrolet Malibu, 2014-2017 Buick Regal, 2014-2015 Chevrolet Impala, 2016 Chevrolet Malibu, 2016 Chevrolet Malibu Limited, 2016 Buick Envision, 2017-2021 GMC Acadia, 2017-2021 Chevrolet Malibu, 2017-2020 Buick Envision, 2017-2019 Chevrolet Impala, 2018-2020 Chevrolet Equinox, 2018-2020 GMC Terrain, 2018-2019 Buick LaCrosse, 2018-2019 Buick Regal Sportback, 2018-2019 Buick Regal TourX, 2018-2019 Chevrolet Traverse, 2019-2021 Chevrolet Blazer, 2020 Buick Regal Sportback, 2020 Buick Regal TourX, 2021-2022 Chevrolet Malibu, and 2020 Chevrolet Malibu.