Motorad 732-172 Engine Coolant Thermostat Housing Assembly - Upper

Integrated Housing Thermostat for Honda and Acura

Motorad 732-172 is an engine coolant thermostat housing assembly built for OE-style cooling system service. It combines the thermostat, housing, and seal in one integrated unit for select Honda Civic, Honda CR-V, Honda Accord, Honda HR-V, Acura ILX, Acura TLX, and Acura Integra applications.

With a 172 Deg. F opening temperature, this Motorad Integrated Housing Thermostat is specified for vehicles that require precise coolant flow control and a direct-fit housing design. The black housing uses OEM-style sealing surfaces and materials selected for demanding cooling system conditions.

Key Features

• Part number: 732-172
• Integrated housing thermostat assembly with thermostat, housing, and seal
• 172 Deg. F opening temperature for OE-specified applications
• 3 bolt holes and 1 outlet port
• Outlet diameter: 1.26 in
• Gasket/seal included; rubber seal material
• Black housing with plastic, stainless steel, and copper construction
• OE supplier manufacturing with OEM specifications and processes
• Copper case and wax compound for quick response to coolant temperature changes
• Offset design and air relief valve included where applicable

Product Details

Motorad 732-172 is part of the Integrated Housing Thermostat line, a product family focused on replacing the thermostat and housing together for cleaner service and consistent sealing. This design is well suited for late-model Honda Civic and Acura ILX cooling system repairs where the thermostat housing assembly is serviced as a complete unit. The OE-style construction and 172 Deg. F calibration help maintain proper engine operating temperature in everyday driving and under demanding thermal loads.

This part cross-references Continental 49437 and Four Seasons 57327 for the same application.

Common Cooling System Issues It Can Address

• Engine running too cool or too warm due to thermostat control issues
• Coolant leaks at the thermostat housing or seal surface
• Temperature fluctuation from a worn thermostat element
• Service concerns when the original housing is cracked, warped, or degraded
• Cooling system maintenance on Honda Civic, Honda CR-V, Honda Accord, Honda HR-V, Acura ILX, Acura TLX, and Acura Integra models

Installation Notes

Verify the 172 Deg. F temperature specification and confirm the housing style, bolt-hole count, and outlet diameter before installation. Replace the sealing surface carefully, clean mating surfaces thoroughly, and follow the vehicle service procedure for coolant refill and air bleeding. This part is listed with no bleeder hole and no jiggle pin.

Fits 2022-2026 Honda Civic, N/A. Fits 2024-2025 Acura Integra, N/A. Fits 2023-2025 Honda HR-V, N/A. Fits 2021-2022 Acura ILX, N/A. Fits 2016-2021 Honda Civic, N/A. Fits 2020 Acura ILX, Upper. Fits 2016-2019 Acura ILX, N/A. Fits 2017-2019 Acura TLX, N/A. Fits 2015 Acura TLX, N/A. Fits 2015-2019 Honda CR-V, N/A. Fits 2016-2017 Honda Accord, N/A. Fits 2013-2015 Honda Accord, N/A.

Quality Assurance

Manufactured by an OE supplier using OEM-quality materials and safety standards, this thermostat housing assembly is built to meet the specifications used in original-equipment cooling system service.