Motorad 751-172 Engine Coolant Thermostat Housing Assembly

Integrated Thermostat Housing for OE Fit

Motorad 751-172 is an integrated engine coolant thermostat housing assembly built for precise coolant temperature control in select Honda and Acura applications. It combines the thermostat, housing, and seal in one OE-style service part for a clean replacement on vehicles such as the Honda Pilot, Honda Accord, and Acura MDX.

The Integrated Housing Thermostat line from Motorad focuses on OE-spec construction and temperature response. This assembly uses a copper case and wax compound for quick reaction to coolant temperature changes, along with OEM-style sealing surfaces where applicable.

Key Features

• Engine coolant thermostat housing assembly with integrated housing design
• 172°F thermostat rating for specified OE applications
• Material construction includes plastic, steel, and copper
• Gasket/seal included with rubber O-ring style sealing
• Black finish with 3 bolt holes and 2 outlet ports
• Bypass dimensions: 1.09 in diameter and 1.88 in length
• Outlet diameters: 1.25 in and 0.55 in
• Motorad part number 751-172

Detailed Description

Motorad 751-172 is engineered as a direct replacement thermostat housing assembly for cooling systems that require a 172°F operating temperature. It is built with OEM-quality materials and manufacturing processes, and the copper thermostat case with wax compound is used to respond quickly to coolant temperature changes. The integrated housing format helps simplify service on applications that use a combined thermostat and housing design.

This part cross-references Dorman OE Solutions 902-5834 for the same application. It is listed for select Honda Pilot, Honda Accord, Honda Ridgeline, Honda Crosstour, and Acura MDX and RLX applications, making it a relevant search match for drivers looking for a Honda Pilot thermostat housing assembly, Honda Accord coolant thermostat housing, or Acura MDX thermostat housing replacement. Motorad 751-172 is also referenced by other aftermarket numbers including Four Seasons 57517 and 75172.

Common Repair Uses

• Replacing a leaking thermostat housing or worn seal
• Restoring proper engine coolant temperature regulation
• Addressing overheating caused by thermostat sticking or housing wear
• Fixing coolant loss around the thermostat assembly
• Servicing an OE-style integrated thermostat housing on Honda and Acura vehicles

Installation Notes

Confirm the 172°F temperature specification and match the outlet and bypass dimensions before installation. This assembly includes the thermostat, housing, and seal; mounting hardware and installation tools are not included. Clean the mating surfaces thoroughly, inspect adjacent coolant hoses and clamps, and refill and bleed the cooling system according to the vehicle service procedure.

Quality Assurance

Motorad manufactures this thermostat housing assembly to OEM specifications and processes using OE-supplier quality materials and safety standards. The design is intended to meet the demands of modern automotive cooling systems and provide consistent thermostat response in the specified applications.