Motorad 928-203 Engine Coolant Thermostat Housing Assembly - Upper

Integrated Housing Thermostat for OE Cooling Control

Motorad 928-203 is an integrated housing thermostat assembly built for Chrysler, Jeep, Ram, and Fiat applications that call for a 203°F coolant temperature rating. It combines the thermostat, housing, and seal in one OE-style service part for a direct replacement on select Cherokee, ProMaster, 200, and 500 models.

Manufactured with OEM-quality materials and OE supplier processes, this thermostat housing assembly is built to handle demanding cooling system conditions while responding quickly to coolant temperature changes. The Motorad Integrated Housing Thermostat line focuses on complete, application-specific assemblies for cleaner service and accurate temperature control.

Key Features

• Integrated engine coolant thermostat housing assembly
• 203°F temperature rating for OE-specified cooling control
• Plastic, steel, and copper construction
• Black housing with 1.50 in outlet diameter
• Includes gasket/seal with rubber O-ring design
• Bleeder hole included for service and air evacuation
• 2-bolt mounting pattern with 1 outlet port
• OE supplier manufacturing standards and OEM specifications

Detailed Description

Motorad part number 928-203 is designed as a direct-fit thermostat housing assembly for vehicles that use an integrated coolant outlet design. The copper case and wax compound are engineered for fast reaction to coolant temperature changes, helping maintain stable engine operating temperature in Chrysler 200, Jeep Cherokee, Ram ProMaster 1500, Ram ProMaster 2500, Ram ProMaster 3500, and Fiat 500 applications listed in the fitment data. This part cross-references Mopar 68136754AA for the same application.

Because the thermostat, housing, and seal are integrated, this assembly supports a cleaner replacement process than rebuilding separate components. The Motorad 928-203 is a practical OE-style choice for drivers and technicians servicing cooling systems that require a 203°F thermostat housing assembly.

What It Helps Address

• Engine running too cool or too warm due to thermostat control issues
• Coolant leaks at the thermostat housing or seal interface
• Temperature fluctuation from a worn thermostat element
• Service concerns on integrated housing cooling system designs
• Air trapped in the cooling circuit after thermostat service

Installation Notes and Tips

• Verify the OE-specified 203°F temperature requirement before installation.
• Inspect the mating surface and cooling passages for corrosion or debris.
• Use the included O-ring seal and confirm proper seating before filling the system.
• Bleed air from the cooling system after installation to help prevent hot spots.
• Confirm fitment by year, make, model, and position: Fits 2022 Jeep Cherokee, N/A; Fits 2019-2021 Jeep Cherokee, Upper; Fits 2015-2021 Ram ProMaster 1500, N/A; Fits 2015-2021 Ram ProMaster 2500, N/A; Fits 2015-2021 Ram ProMaster 3500, N/A; Fits 2014-2018 Jeep Cherokee, N/A; Fits 2015-2017 Chrysler 200, N/A; Fits 2016 Fiat 500, N/A.

Quality Assurance

Motorad manufactures this integrated housing thermostat using OEM-quality materials and OE supplier processes to meet application-specific cooling system requirements. The design follows OEM specifications for the listed vehicles and temperature rating.