Gates CO34996 Engine Coolant Hose Flange

Coolant Outlet for GM Applications

The Gates Coolant Outlet CO34996 is an OE-style engine coolant hose flange built for select Chevrolet, GMC, and Cadillac applications. It is designed to match original fit and function while addressing common aftermarket material and design issues with a practical replacement solution.

Gates Coolant Outlet line coverage includes water outlets and thermostat housing assemblies, giving technicians a direct replacement option for cooling system service on vehicles such as the Chevrolet Camaro, Chevrolet Colorado, GMC Canyon, Cadillac ATS, Cadillac CTS, and Cadillac CT6.

Key Features

• Part number CO34996 coolant outlet / engine coolant hose flange
• OE exact design for original-style fit and performance
• Plastic and rubber construction
• Integrated seal design with no separate gasket required
• Two-bolt mounting pattern
• Multiple outlet diameters for the specified cooling system connections
• Includes coolant outlet, integrated seal, hose, hose clamp, and sensor as listed in product contents

Detailed Product Overview

This Gates coolant outlet is engineered as a direct replacement for the factory coolant hose flange used on select GM vehicles. The housing uses plastic and rubber materials and features an integrated seal to help maintain a secure coolant connection at the engine. CO34996 is listed with OE exact construction and is intended to deliver the same fit and function as the original part.

Cross-reference part numbers for the same application include Dorman OE Solutions 902-2134.

What This Part Helps Address

• Coolant leaks at the outlet or flange connection
• Cracked or deteriorated plastic coolant housing
• Failed sealing surfaces at the engine coolant hose flange
• Service issues caused by worn original coolant outlet components
• Cooling system repairs on Chevrolet Camaro, Chevrolet Colorado, GMC Canyon, Cadillac ATS, Cadillac CTS, and Cadillac CT6

Installation Notes and Fitment

Compatible With select 2013-2022 Cadillac ATS, CTS, and CT6; 2016-2022 Chevrolet Colorado; 2017-2022 Chevrolet Camaro; and 2017-2022 GMC Canyon applications. Fitment is specific to the listed model years and notes, including engine coolant hose flange and coolant outlet configurations.

• Fits 2022 Chevrolet Camaro, N/A; Engine Coolant Hose Flange comes with seal included; Coolant Outlet
• Fits 2017-2020 Chevrolet Camaro, N/A; Engine Coolant Hose Flange comes with seal included; Coolant Outlet
• Fits 2021 Chevrolet Camaro, N/A; Seal included; Coolant Outlet
• Fits 2022 Chevrolet Colorado, N/A; Seal included; Coolant Outlet
• Fits 2016-2021 Chevrolet Colorado, N/A; Engine Coolant Hose Flange comes with seal included; Coolant Outlet
• Fits 2022 GMC Canyon, N/A; Seal included; Coolant Outlet
• Fits 2017-2021 GMC Canyon, N/A; Engine Coolant Hose Flange comes with seal included; Coolant Outlet
• Fits 2013-2019 Cadillac ATS, N/A; Engine Coolant Hose Flange comes with seal included; Coolant Outlet
• Fits 2014-2017 Cadillac CTS, N/A; Seal included; Coolant Outlet
• Fits 2018-2019 Cadillac CTS, N/A; Engine Coolant Hose Flange comes with seal included; Coolant Outlet
• Fits 2016 Cadillac CT6, N/A; Seal included; Coolant Outlet
• Fits 2017-2018 Cadillac CT6, N/A; Engine Coolant Hose Flange comes with seal included; Coolant Outlet

Before installation, verify outlet diameter, bolt-hole count, and sensor connection details against the original part. Clean the mating surfaces thoroughly to help the integrated seal seat properly during assembly.

Quality Assurance

Gates coolant outlets are developed to address common aftermarket design, manufacturing, and material concerns while maintaining OE-style fit and long service life. The CO34996 is built for direct replacement use in the specified GM cooling system applications.