Gates CO34780 Engine Coolant Water Outlet

Gates Coolant Outlet for Ford Super Duty Applications

The Gates CO34780 coolant outlet is an engine coolant water outlet built for select Ford truck and van applications. It is designed to match original fit and function while addressing common aftermarket concerns with material and manufacturing quality.

For buyers searching for a Ford F-250 Super Duty coolant outlet, Ford F-350 Super Duty coolant outlet, or Ford Excursion thermostat housing-related replacement, this Gates coolant outlet line provides a direct-fit service part for the cooling system.

Key Features

• Stamped steel construction for durability in cooling system service
• Coolant outlet design with seal included
• 3 bolt holes for OE-style mounting
• Outlet inside diameter: 1.65 in.
• Outlet outside diameter: 1.77 in.
• Engine coolant water outlet / coolant outlet type
• Gates Coolant Outlet line coverage for water outlets and thermostat housing assemblies

Product Details

The Gates CO34780 is part of the Coolant Outlet product line, which covers a range of cooling-system service parts from simple water outlets to complete thermostat housing assemblies. This part is built to fit and perform like the original component, with stamped steel construction and a seal included for the application. It is a practical replacement for worn, corroded, or leaking coolant outlet assemblies on select Ford E-Series, Excursion, and Super Duty platforms.

This part cross-references Dorman OE Solutions 902-1004 for the same application.

Used For Common Cooling System Problems

• Coolant leaks at the outlet flange or housing connection
• Corrosion or rust damage on the original stamped metal outlet
• Cracked or warped coolant outlet surfaces
• Failed sealing surface causing coolant loss
• Cooling system service on aging Ford truck and van engines

Fitment Notes

• Fits 2003 Ford E-350 Club Wagon, N/A; Engine Coolant Hose Flange comes with seal included; Coolant Outlet
• Fits 2002-2003 Ford E-350 Super Duty, N/A; Engine Coolant Hose Flange comes with seal included; Coolant Outlet
• Fits 2000-2003 Ford Excursion, N/A; Engine Coolant Hose Flange comes with seal included; Coolant Outlet
• Fits 1999-2003 Ford F-250 Super Duty, N/A; Engine Coolant Hose Flange comes with seal included; Coolant Outlet
• Fits 1999-2003 Ford F-350 Super Duty, N/A; Engine Coolant Hose Flange comes with seal included; Coolant Outlet
• Fits 2002 Ford E-350 Econoline Club Wagon, N/A; Engine Coolant Hose Flange comes with seal included; Coolant Outlet

Installation Notes

Verify the outlet diameter, bolt-hole count, and sealing surface before installation. Clean the mating surfaces thoroughly and inspect the hose connection and adjacent cooling components for wear or corrosion. Use the included seal during installation and follow the vehicle service procedure for coolant refill and bleed steps.

Quality Assurance

Gates designs this coolant outlet to address common design, manufacturing, and material issues found in other aftermarket options. The part is intended to deliver OE-style fit and long service life for select Ford cooling system applications.