Four Seasons 85318 Engine Coolant Water Inlet

Engine Coolant Water Inlet for Volkswagen

Four Seasons Water Inlet 85318 is an engine coolant water inlet built for direct replacement service on select Volkswagen applications. It is made from plastic and thermoplastic materials, includes a gasket or seal, and is specified as an inlet without a thermostat.

Compatible with 1998-2005 Volkswagen Beetle, 1999-2005 Volkswagen Golf, and 1999-2005 Volkswagen Jetta, this Four Seasons Water Inlet supports coolant routing at the engine cooling system connection point. The part number 85318 is also listed as meeting or exceeding OEM requirements for the application.

Key Features

• Four Seasons Water Inlet, part number 85318
• Engine coolant components inlet style
• Plastic and thermoplastic construction
• Gasket or seal included
• Inlet diameter: 1.043 in.
• Maximum height: 4.445 in.
• Mounting flange width: 0.317 in.
• Bolt hole center to bolt hole center: 2.69 in. and 2.750 in.
• Thermostat not included; w/o thermostat design
• Meets or exceeds OEM requirements

Product Details

Four Seasons Water Inlet 85318 is a replacement engine coolant water inlet for Volkswagen Beetle, Golf, and Jetta models within the listed year ranges. The Water Inlet product line focuses on cooling-system inlet components, and this part is built for applications that use a separate thermostat arrangement. Use the part number 85318 when verifying the correct coolant inlet configuration for your vehicle.

This part cross-references Dorman - Conduct-Tite 85318 for the same application.

Common Cooling System Issues

• Coolant seepage at the inlet connection
• Cracked or warped plastic coolant housing
• Damaged gasket or seal at the engine coolant inlet
• Improper coolant flow at the thermostat housing connection
• Replacement needed after age-related material wear

Installation Notes

Confirm inlet diameter, bolt-hole spacing, and thermostat configuration before installation. This part is specified without a thermostat, so reuse or replace related cooling-system components as needed based on the vehicle setup. Clean the mating surfaces thoroughly and inspect the seal area before assembly.

Quality Assurance

Four Seasons lists this water inlet as meeting or exceeding OEM requirements for the specified applications. Verify fitment against your vehicle’s cooling system layout before ordering.