Four Seasons 86076 Engine Coolant Thermostat Housing

Thermostat Housing for Ford, Mazda, Mercury

Four Seasons 86076 is an engine coolant thermostat housing built for direct replacement in select Ford, Mazda, Mercury, and Lincoln applications. It is a plastic thermostat housing with a 1.500 in inlet port diameter, 0.530 in flange thickness, and 2.36 in bolt hole center-to-center spacing.

This Four Seasons thermostat housing 86076 is supplied without a thermostat and without a gasket or seal. It meets or exceeds OEM requirements and is intended for vehicles that need a replacement coolant outlet housing for proper thermostat mounting and coolant flow control.

Key Features

• Plastic thermostat housing for engine coolant service
• Style: without thermostat
• Gasket or seal not included
• Thermostat not included
• Meets or exceeds OEM specifications
• Part number: 86076
• Cross-reference: Motorad CH8778

Product Details

Four Seasons Thermostat Housing 86076 is part of the brand’s Thermostat Housing line within the Belts and Cooling category. It is engineered as an engine coolant component for applications that require a replacement thermostat housing rather than a complete thermostat assembly. The housing dimensions and mounting layout support OE-style fitment, and the plastic construction matches common factory-style cooling system designs used on Ford Fusion, Mercury Milan, Ford Escape, Mazda 6, Mazda Tribute, Mercury Mariner, Lincoln Zephyr, and Mazda MPV applications.

Use this thermostat housing when servicing cooling system leaks, replacing a cracked housing, or restoring proper thermostat mounting on compatible Ford Fusion and Mercury Milan models. The Four Seasons 86076 part number is also useful when searching for OE replacement references during cooling system repair.

Vehicle Fitment

• Fits 2006-2009 Ford Fusion, Thermostat Housing
• Fits 2001-2008 Ford Escape, Thermostat Housing
• Fits 2006-2009 Mercury Milan, Thermostat Housing
• Fits 2005-2008 Mercury Mariner, Thermostat Housing
• Fits 2003-2008 Mazda 6, Thermostat Housing
• Fits 2002-2006 Mazda Tribute, Thermostat Housing
• Fits 2008 Mazda Tribute, Thermostat Housing
• Fits 2006 Lincoln Zephyr, Thermostat Housing
• Fits 2002-2006 Mazda MPV, Thermostat Housing

Common Repair Uses

• Replacing a cracked or warped thermostat housing
• Addressing coolant seepage at the housing flange
• Restoring thermostat mounting on the cooling system
• Repairing damaged inlet port or bolt-hole areas
• Servicing overheating concerns tied to housing failure

Installation Notes

Verify the housing style, inlet diameter, and bolt-hole spacing before installation. Because the thermostat and gasket or seal are not included, transfer or source the correct matching components separately. Clean the mating surfaces thoroughly and inspect adjacent cooling system parts for wear before reassembly.

Quality Assurance

Four Seasons 86076 is listed as meeting or exceeding OEM requirements for the specified applications. Confirm fitment against the vehicle’s year, make, and model before installation.