Gates CO34776 Engine Coolant Water Outlet

Gates Coolant Outlet CO34776

The Gates Coolant Outlet CO34776 is a cast aluminum engine coolant water outlet built for direct replacement service on a wide range of GM vehicles. It is engineered to match original fit and function while addressing common aftermarket material and design issues.

Key Features

• Cast aluminum construction for durable cooling system service
• Coolant outlet design with 1.063 in. inside diameter and 1.323 in. outside diameter
• Two-bolt mounting pattern for OE-style installation
• Includes coolant outlet, seal, and bleeder screw
• Designed for long service life and consistent coolant flow
• Gates Coolant Outlet line coverage supports water outlets and thermostat housing assemblies

Product Details

Gates CO34776 is an engine coolant water outlet for vehicles such as the Buick Century, Pontiac Grand Prix, and Chevrolet Impala. The cast aluminum body helps provide a stable sealing surface, while the included seal supports proper coolant system sealing at the outlet connection. This part cross-references Dorman OE Solutions 902-2004 for the same application.

The Gates Coolant Outlet product line is built to provide a practical OE-style replacement for cooling system repairs. Gates focuses on fit, function, and material selection across its coolant outlet and thermostat housing coverage, making this part a direct option when replacing a worn or leaking coolant outlet on GM applications.

Common Repair Uses

• Coolant leaks at the engine coolant hose flange
• Cracked or corroded coolant outlet housing
• Failed sealing surface at the outlet connection
• Bleeder screw service during cooling system repair
• Restoration of proper coolant routing on GM V6 applications

Installation Notes

Verify the outlet diameter, bolt pattern, and engine-side connection before installation. Clean the mating surfaces thoroughly and inspect the hose and seal area for wear before assembly. This part is listed for multiple GM passenger vehicles, including Buick Rendezvous, Chevrolet Uplander, Pontiac Montana, and Saturn Relay, so confirm year and model match the vehicle before ordering. Fits 1994-2005 Buick Century, N/A; Fits 1994-1996 Buick Regal, N/A; Fits 2000-2005 Chevrolet Impala, N/A; Fits 1995-2005 Chevrolet Monte Carlo, N/A; Fits 1995-2001 Chevrolet Lumina, N/A; Fits 2002-2007 Buick Rendezvous, N/A; Fits 2005-2006 Buick Terraza, N/A; Fits 2005-2006 Chevrolet Uplander, N/A; Fits 1999-2006 Pontiac Montana, N/A; Fits 2005-2006 Saturn Relay, N/A; Fits 1996-2004 Oldsmobile Silhouette, N/A; Fits 1994-2003 Pontiac Grand Prix, N/A; Fits 1996-1999 Pontiac Trans Sport, N/A; Fits 1993-1997 Oldsmobile Cutlass Supreme, N/A; Fits 1993-1996 Oldsmobile Cutlass, N/A; Fits 1994-1996 Oldsmobile Cutlass Ciera, N/A; Fits 1994 Oldsmobile Cutlass Cruiser, N/A; Fits 1996 Chevrolet Lumina APV, N/A.

Quality Assurance

Gates designs this coolant outlet to fit and perform like the original part while supporting long service life in the cooling system. The cast aluminum construction and OE-style configuration are intended to provide dependable replacement quality for routine cooling system repair.