Four Seasons 85104 Engine Coolant Water Outlet

Engine Coolant Water Outlet for GM Applications

Four Seasons Water Outlet 85104 is an engine coolant water outlet built for select GM cooling system applications. It is made from aluminum and aluminum/cast iron materials, includes a gasket or seal, and is listed as meeting or exceeding OEM requirements for fit and function.

Fits 1995 Chevrolet Blazer, N/A. Fits 1994-1995 Chevrolet S10, N/A. Fits 1992-1995 GMC Jimmy, N/A. Fits 1991-1995 GMC Sonoma, N/A. Fits 1992-1994 Chevrolet S10 Blazer, N/A. Fits 1992-1994 Oldsmobile Bravada, N/A.

Key Features

• Four Seasons Water Outlet line
• Part number 85104
• Engine coolant outlet, w/o thermostat
• Thermostat not included
• Aluminum construction with aluminum/cast iron material specification
• Gasket or seal included
• Inlet diameter: 1.035 in.
• Bolt hole center to bolt hole center: 2.42 in. and 2.438 in.
• Maximum height: 1.849 in.
• Mounting flange width: 0.408 in.
• Meets or exceeds OEM requirements

Product Details

The Four Seasons Water Outlet 85104 is a direct-fit coolant outlet component for the thermostat and housing category. It is used in engine coolant routing where a secure outlet connection is needed, and its included gasket or seal supports proper sealing at the mounting surface. This part cross-references Motorad CH3032 for the same application.

Four Seasons Water Outlet parts are built for cooling-system service where dimensional accuracy matters. For Chevrolet Blazer, Chevrolet S10, GMC Jimmy, GMC Sonoma, Chevrolet S10 Blazer, and Oldsmobile Bravada applications, 85104 provides an OE-style replacement option that aligns with the listed inlet size, bolt spacing, and outlet style.

What This Part Helps Address

• Coolant leakage at the water outlet housing
• Cracked or corroded outlet surfaces
• Improper sealing at the coolant connection
• Cooling system service on a thermostat-less outlet design
• Replacement of a worn engine coolant outlet on GM trucks and SUVs

Installation Notes and Tips

Verify the inlet diameter, bolt-hole spacing, and outlet style against the removed part before installation. Clean the mating surfaces thoroughly, inspect the hose connection area for wear, and confirm the gasket or seal seats evenly during assembly. Because the thermostat is not included, reuse or replace related cooling components as needed based on the vehicle’s service condition.

Quality Assurance

Four Seasons lists this water outlet as meeting or exceeding OEM requirements. The part number 85104 is engineered for the specified GM fitments and cooling-system dimensions to support consistent replacement service.