Motorad 951-172 Engine Coolant Thermostat Housing Assembly

Integrated Thermostat Housing Assembly

Motorad 951-172 is an integrated engine coolant thermostat housing assembly built for OE-style cooling system service. It combines the thermostat, housing, and seal in one replacement unit for select Acura and Honda applications, including Honda Passport, Pilot, Odyssey, Ridgeline, and Acura MDX, RLX, and TLX models.

The Integrated Housing Thermostat line focuses on direct-fit cooling components manufactured to OEM specifications and processes. This assembly uses a copper case and wax compound for quick reaction to coolant temperature changes, helping maintain stable engine operating temperature in demanding daily driving conditions.

Key Features

• Part number 951-172 integrated thermostat housing assembly
• 172°F thermostat temperature rating
• Plastic, steel, and copper construction with black finish
• Gasket/seal included with O-ring style rubber seal
• Bleeder hole for cooling system service and air removal
• 3-bolt housing design with 2 outlet ports
• OE supplier manufacturing standards and OEM specification processes

Detailed Description

Motorad 951-172 is an engine coolant thermostat housing assembly for vehicles that require a 172-degree thermostat and integrated housing design. It is built with OEM-quality materials and safety standards, using a copper case and wax element to respond quickly to coolant temperature changes. The housing includes the thermostat and seal, which supports a cleaner replacement during cooling system repair. This part cross-references Dorman - OE Solutions 902-5953 for the same application.

Compatible With select 2022-2023 Honda Passport, 2022 Honda Odyssey, 2022 Honda Pilot, 2022 Honda Ridgeline, 2022 Acura MDX, 2018-2021 Honda Ridgeline, 2016-2020 Acura MDX, 2018-2020 Acura RLX, 2015-2020 Acura TLX, 2018-2020 Honda Odyssey, 2019-2020 Honda Passport, and 2016-2019 Honda Pilot applications.

What It Helps Address

• Engine running too cool or too hot due to thermostat wear
• Coolant leaks at the thermostat housing or seal area
• Slow thermostat response during temperature changes
• Cooling system service needs on integrated housing designs
• Air trapped in the cooling system after repair, thanks to the bleeder hole

Installation Notes and Tips

Verify the OE temperature specification and housing style before installation, especially on Honda Ridgeline, Honda Pilot, and Acura MDX applications where alternate temperature options may exist. Inspect the mating surfaces, replace damaged coolant hoses or seals as needed, and follow the vehicle service procedure for coolant refill and air bleeding. The housing uses 3 bolt holes and does not include mounting hardware or an installation tool.

Quality Assurance

Motorad manufactures this integrated housing thermostat using OEM-quality materials and OE supplier standards. The copper case and wax compound are selected for responsive temperature control, and the part is produced to OEM specifications and processes for consistent fit and function.