Four Seasons 86242 Engine Coolant Thermostat Housing - Lower

Thermostat Housing for Honda Cooling Service

Four Seasons Thermostat Housing 86242 is an aluminum engine coolant thermostat housing built for direct-fit cooling system service. It is specified for select Honda Civic and Honda HR-V applications and is supplied without the thermostat or gasket/seal.

Key Features

• Aluminum thermostat housing for engine coolant service
• Style: without thermostat
• Gasket or seal not included
• Thermostat not included
• Meets or exceeds OEM requirements
• Inlet port diameter: 0.67 in.
• Bolt hole center to bolt hole center: 1.22 in.
• Flange thickness: 2.68 in.
• Overall height: 2.68 in.

Product Details

This Four Seasons thermostat housing is part of the Thermostat Housing product line and is engineered for engine coolant components service where the housing must be replaced separately from the thermostat. The aluminum construction supports a precise cooling-system fit, and the OE-style design is intended for Honda Civic and Honda HR-V cooling repairs that require the correct lower or N/A-position housing. Four Seasons 86242 also cross-references Focus Auto Parts 86242 for the same application.

Vehicle Fitment

• Fits 2018 Honda HR-V, N/A.
• Fits 2016-2017 Honda HR-V, Lower.
• Fits 2014-2015 Honda Civic, Lower.
• Fits 2012 Honda Civic, Lower.
• Fits 2013 Honda Civic, N/A.

Common Repair Uses

• Cracked or corroded thermostat housing replacement
• Coolant seepage at the housing flange
• Damaged inlet port or mounting surface
• Cooling system service on Honda Civic and Honda HR-V
• Restoring proper thermostat housing sealing after overheating-related damage

Installation Notes

Verify the engine code, housing position, and port dimensions before installation. Because the gasket or seal is not included, reuse is not recommended if the sealing surface is worn; inspect the mating surface carefully and replace any related sealing components as needed. Confirm the thermostat requirement for your repair, since this housing is supplied without a thermostat.

Quality Assurance

Four Seasons 86242 is built to meet or exceed OEM specifications for fit and function in the listed Honda applications. Confirm part number 86242 against the vehicle’s cooling system configuration before installation.