Motorad 865-194 Engine Coolant Thermostat Housing Assembly

Integrated Housing Thermostat for Chrysler and Ram

Motorad 865-194 is an integrated housing thermostat assembly built for select Chrysler and Ram cooling systems. It combines the thermostat, housing, sensor, and seal in one OE-style service part for 194 degree F operation.

Compatible With 2017-2025 Chrysler Pacifica, 2020-2021 Chrysler Voyager, 2022-2025 Chrysler Grand Caravan, and 2022-2025 Ram ProMaster 1500/2500/3500 applications that call for a 194F integrated housing thermostat.

Key Features

• Integrated housing thermostat assembly with thermostat, housing, sensor, and seal
• 194 degree F opening temperature / start-to-open temperature
• Bleeder hole and jiggle pin included for air management during service
• 3 bolt holes with 2 outlet ports
• Rubber seal included
• Black housing with plastic, stainless steel, and copper construction
• Offset design and OEM-style seals where applicable

Product Details

Motorad’s Integrated Housing Thermostat line focuses on OE-style cooling system service parts that match factory specifications and processes. Part number 865-194 uses a copper case and wax compound for quick response to coolant temperature changes, helping the engine reach and maintain the specified operating range. The housing design includes an air relief valve, bleeder hole, and OEM-style sealing features to support proper coolant flow and service fitment.

This part cross-references Dorman OE Solutions 902-3114 for the same application. It is a direct-fit cooling system service part for Chrysler Pacifica, Chrysler Voyager, Chrysler Grand Caravan, and Ram ProMaster models listed in the fitment data.

What It Helps Address

• Coolant temperature control concerns caused by a worn thermostat assembly
• Leaks at the thermostat housing or seal interface
• Air trapped in the cooling system after service
• Slow thermostat response from aging internal components
• Fitment issues from using a non-OE-style housing design

Installation Notes

Verify the vehicle’s original thermostat temperature specification before installation. Inspect the mating surfaces, replace any damaged coolant hoses or connectors, and confirm the seal seats correctly in the housing. Bleed the cooling system according to factory procedure after installation to remove trapped air and restore normal coolant circulation.

Quality Assurance

Manufactured by an OE supplier using OEM-quality materials, this thermostat housing assembly is produced to OEM specifications and processes for service consistency in demanding cooling systems.