Gates CO34917 Engine Coolant Hose Flange

OE-Style Coolant Hose Flange for GM Applications

The Gates Coolant Outlet CO34917 is an OE exact coolant hose flange built for select Chevrolet, Pontiac, and Oldsmobile applications. It is engineered to match original fit and function while addressing common aftermarket material and design issues with a durable aluminum/steel construction.

Key Features

• OE exact coolant hose flange for direct replacement fitment
• Constructed from aluminum/steel for strength and corrosion resistance
• Three-bolt-hole design for secure mounting
• Outlet dimensions include 1.349 in outside diameter and .566 in, .604 in, and 1.226 in inside diameters
• Gates Coolant Outlet line coverage includes water outlets and thermostat housing assemblies
• Part number CO34917 for easy identification and ordering

Product Details

Gates Coolant Outlet CO34917 is designed to perform like the original coolant hose flange on the vehicle. The OE exact design supports proper coolant routing and sealing at the engine outlet, helping maintain the factory-style cooling system layout on vehicles such as the Chevrolet Cavalier, Chevrolet Malibu, Pontiac Grand Am, Pontiac Sunfire, and Oldsmobile Alero. This part cross-references Dorman OE Solutions 902-2085 for the same application.

The Gates Coolant Outlet product line is built to provide a practical replacement solution for common coolant outlet and thermostat housing service needs. CO34917 follows original-style dimensions and mounting points so technicians can replace a worn or damaged flange with a part that matches the intended application.

What This Part Helps Address

• Cracked or leaking coolant hose flange
• Coolant seepage at the engine outlet connection
• Corrosion or wear in the original flange material
• Improper hose fit caused by distorted outlet dimensions
• Cooling system service on OE-style GM outlet assemblies

Installation Notes and Tips

• Verify the outlet dimensions and three-bolt-hole pattern before installation.
• Inspect the mating surface, hose condition, and adjacent cooling components during service.
• Clean the sealing area thoroughly to help ensure proper fit and coolant retention.
• Confirm vehicle-specific fitment for 2002-2005 Chevrolet Cavalier, 2004-2005 Chevrolet Classic, 2005 Chevrolet Malibu New Body Style, 2004 Chevrolet Malibu Old Body Style, 2002-2005 Pontiac Grand Am, 2002-2005 Pontiac Sunfire, and 2002-2004 Oldsmobile Alero.

Quality Assurance

Gates positions this coolant outlet program as an OE-style replacement line with full coverage across related cooling system components. CO34917 is built to match original fit and performance expectations for long service life in the intended applications.