Four Seasons 86306 Engine Coolant Thermostat Housing

Thermostat Housing for Ford and Lincoln Cooling Systems

Four Seasons Thermostat Housing 86306 is an engine coolant thermostat housing built from aluminum for dependable cooling-system service. It includes the thermostat and is made for direct replacement on select Ford Fusion, Lincoln MKZ, Ford C-Max, and Ford SSV Plug-In Hybrid applications.

The Four Seasons thermostat housing line is backed by more than 50 years of mobile A/C experience and is engineered and tested for long service life. This housing is a practical choice when you need a thermostat housing assembly that matches the original cooling-system layout.

• Aluminum thermostat housing construction
• Thermostat included
• Inlet diameter: 1.337 in.
• Mounting flange width: 2.01 in.
• Overall height: 5.74 in.
• Style: w/ thermostat
• Gasket or seal not included

Detailed Product Overview

Four Seasons 86306 is an engine coolant thermostat housing designed for vehicles that use a thermostat-integrated housing assembly. Its aluminum body supports cooling-system durability, while the included thermostat helps restore proper coolant flow control. This part cross-references Delphi TA5005 for the same application. It is a direct-fit option for 2013-2020 Ford Fusion, 2013-2020 Lincoln MKZ, 2013-2018 Ford C-Max, and 2019-2020 Ford SSV Plug-In Hybrid models.

What This Part Helps Address

• Coolant leaks at the thermostat housing
• Cracked or warped housing surfaces
• Thermostat-related temperature control issues
• Cooling-system service on a Ford Fusion thermostat housing replacement
• Cooling-system repair on a Lincoln MKZ thermostat housing assembly

Installation Notes and Tips

Verify the inlet diameter, mounting flange width, and overall height against the original part before installation. Because the gasket or seal is not included, transfer or replace the sealing components as required for the application. Confirm the vehicle uses a thermostat housing with the same configuration before ordering, especially on Ford Fusion and Lincoln MKZ cooling-system repairs.

Quality Assurance

Four Seasons engineers and tests its products for long, trouble-free operation. Part number 86306 is built to support reliable cooling-system service using the brand’s experience in mobile A/C and thermal management components.