Four Seasons 85173 Engine Coolant Water Inlet

Engine Coolant Water Inlet for Ford, Lincoln, Mercury

Four Seasons 85173 is an aluminum engine coolant water inlet built for direct replacement on select Ford, Lincoln, Mercury, and Mazda applications. It is supplied as a water inlet without a thermostat and includes the gasket or seal for service-ready installation.

Use this Four Seasons Water Inlet line component when servicing cooling system leaks or replacing a worn coolant inlet on vehicles such as the Ford Taurus, Ford Mustang, Mercury Sable, and Lincoln LS. Part number 85173 meets or exceeds OEM requirements and is shaped for the specified inlet diameter and bolt pattern.

Key Features

• Aluminum construction for cooling system durability
• Engine coolant water inlet, style without thermostat
• Gasket or seal included
• Inlet diameter: 1.276 in.
• Maximum height: 3.430 in.
• Bolt hole center spacing: 2.78 in. and 2.9375 in.
• Mounting flange width: 0.537 in.
• Meets or exceeds OEM specifications

Detailed Description

The Four Seasons 85173 water inlet is an engine coolant component designed for vehicles that use a separate thermostat housing arrangement. Its aluminum body supports reliable coolant routing, while the included gasket or seal helps complete the repair at the inlet connection. This part is a direct-fit style replacement for applications including the Ford Taurus, Mercury Sable, and Lincoln LS, as well as select Ford Mustang, Mercury Cougar, Mazda MPV, Mercury Mystique, Ford Contour, Mercury Marauder, and Lincoln Mark VIII models.

Four Seasons Water Inlet products are built for cooling system service where accurate fit and OE-style dimensions matter. If you are replacing a leaking coolant inlet or restoring the connection point on a 1995-2005 Ford Mustang, 2000-2005 Ford Taurus, or 2000-2005 Lincoln LS, part number 85173 provides the specified inlet configuration without an integrated thermostat.

This part cross-references Motorad 5173KT for the same application.

What It Helps Fix

• Coolant seepage at the water inlet connection
• Cracked or corroded aluminum inlet housing
• Improper sealing at the gasket surface
• Cooling system service on vehicles using a separate thermostat
• Replacement of a worn OE-style coolant inlet

Installation Notes and Tips

• Verify the inlet diameter, bolt spacing, and flange width before installation.
• Clean the mating surfaces thoroughly before fitting the included gasket or seal.
• Confirm that your vehicle uses a water inlet without a thermostat.
• Match the application to the exact year, make, and model listed for your vehicle.

Quality Assurance

Four Seasons 85173 is listed as meeting or exceeding OEM requirements, making it a dependable OE-style replacement for cooling system repair on the covered Ford, Lincoln, Mercury, and Mazda applications.