Dorman 902-200 Engine Coolant Thermostat Housing Assembly

Engine Coolant Thermostat Housing Assembly

Dorman 902-200 is a replacement engine coolant thermostat housing assembly for select Ford, Mercury, and related applications. It is built to match the original housing’s fit and durability, with a plastic black housing and an included O-ring seal for a direct service replacement.

Key Features

• Replacement engine coolant thermostat housing assembly for select vehicles
• Plastic housing with black finish
• Gasket or seal included; O-ring style seal
• Three mounting holes and three outlet ports
• Designed to handle repeated temperature swings for longer service life
• Part number 902-200 for easy identification

Detailed Description

This Dorman thermostat housing assembly is engineered to match the stock housing on specified Ford Focus, Ford Escort, Ford Contour, Mercury Cougar, and Mercury Mystique applications. The housing uses a regular-grade plastic construction with a three-hole mounting pattern, three outlet ports, and an O-ring seal to support a proper coolant connection at the thermostat outlet. Dorman 902-200 is a practical OE-style replacement for vehicles that need a new coolant outlet housing due to age, heat cycling, or seal wear.

This part cross-references Four Seasons 85094 for the same application.

What It Helps Fix

• Coolant leaks at the thermostat housing or water outlet
• Cracked or heat-damaged plastic housing
• Failed O-ring seal at the coolant outlet
• Warped housing surfaces that affect sealing
• Service issues on 1999-2004 Ford Focus, Escort, Contour, and Mercury Cougar or Mystique cooling systems

Installation Notes and Tips

Verify the engine and sensor style before ordering, especially on 1999-2000 Ford Contour, 1999-2000 Mercury Cougar, and 1999-2000 Mercury Mystique applications with a clip-in style ECT sensor. This housing does not include a thermostat or mounting hardware, so reuse or replace related components as needed during cooling system service. Confirm the outlet and flange layout matches the original part before installation.

Quality Assurance

Dorman designs this thermostat housing assembly to match the fit and durability of the original housing and to withstand extreme temperature changes that can shorten service life in cooling system components.

• Fits 2002-2004 Ford Focus
• Fits 2000-2003 Ford Escort
• Fits 2001-2002 Mercury Cougar
• Fits 1999-2000 Ford Contour, assembly; w/Clip-In Style ECT Sensor
• Fits 1999-2000 Mercury Cougar, assembly; w/Clip-In Style ECT Sensor
• Fits 1999-2000 Mercury Mystique, assembly; w/Clip-In Style ECT Sensor