Four Seasons 85140 Engine Coolant Thermostat Housing

Thermostat Housing for Ford Ranger and Mazda B4000

Four Seasons 85140 is an engine coolant thermostat housing built for specific Ford, Mazda, and Mercury applications. It is a plastic, thermoplastic housing with the gasket or seal included, and it is supplied without a thermostat.

Key Features

• Engine coolant thermostat housing for cooling system service
• Plastic and thermoplastic construction
• Gasket or seal included
• Style: without thermostat
• Meets or exceeds OEM requirements
• Bolt hole center to bolt hole center: 3.438 in.
• Thermostat housing type for engine coolant components

Product Details

Four Seasons Thermostat Housing line focuses on replacement engine coolant components for vehicles that need accurate cooling system fit and dependable sealing. Part number 85140 is a direct-fit style thermostat housing for applications including the Ford Ranger, Mazda B4000, Ford Explorer Sport Trac, Ford Explorer Sport, and Mercury Mountaineer. This part cross-references Motorad CH5139 for the same application.

Use Four Seasons 85140 when replacing a cracked, warped, or leaking thermostat housing on compatible Ford Ranger and Mazda B4000 cooling systems. It is also listed for select Ford Explorer Sport Trac, Ford Explorer Sport, and Mercury Mountaineer applications with the noted sensor-port configurations.

Common Reasons for Replacement

• Coolant leaking from the thermostat housing
• Cracked or heat-damaged plastic housing
• Failed sealing surface or gasket area
• Cooling system service requiring housing replacement
• Sensor-port related housing wear or damage

Installation Notes

• Compatible With 2002-2011 Ford Ranger, N/A, with 2 switch ports on listed applications.
• Compatible With 2001-2007 Mazda B4000, N/A, with 2 switch ports on listed applications.
• Compatible With 2005 Ford Explorer Sport Trac, N/A, to 6/29/05.
• Compatible With 2001-2005 Mercury Mountaineer, N/A, with 2 switch ports on listed applications.
• Compatible With 2002-2004 Ford Explorer Sport Trac, N/A.
• Compatible With 2002-2003 Ford Explorer Sport, N/A.
• Compatible With 2001 Ford Explorer Sport, N/A, clip-in sensor style, from 7/24/00.
• Compatible With 2001 Ford Explorer Sport Trac, N/A, clip-in sensor style, from 7/24/00.
• Compatible With 2001 Ford Ranger, N/A, with 2 clip-in switch ports.
• Sensor(s) should be replaced at time of installation where noted in the fitment data.

Quality Assurance

Four Seasons 85140 meets or exceeds OEM requirements for the listed applications. Verify sensor-port style, housing configuration, and vehicle build date before installation to ensure proper fitment.