Motorad 824-203 Engine Coolant Thermostat Housing Assembly

Integrated Housing Thermostat for Chrysler and Dodge

Motorad 824-203 is an integrated housing thermostat assembly built for OE-style cooling system service. It combines the thermostat, housing, and seal in one replacement part for select Chrysler 300, Dodge Challenger, and Dodge Charger applications with a 203°F opening temperature.

The Integrated Housing Thermostat line is focused on direct-fit cooling system service with OEM-style seals, offset design details where applicable, and an air relief feature to help support proper coolant flow and temperature control. Motorad 824-203 is made with plastic, stainless steel, and copper components for use in demanding engine cooling environments.

Key Features

• Motorad 824-203 integrated thermostat housing assembly
• 203°F start-to-open and opening temperature
• Bleeder hole and jiggle pin included
• Rubber gasket/seal included
• Black housing with 1.51 in outlet diameter
• 2 bolt holes for OE-style mounting
• 1 outlet port and 1 seal
• Plastic, stainless steel, and copper construction
• Manufactured to OEM specifications and processes

Detailed Description

This thermostat housing assembly is engineered for direct replacement service on 2011-2021 Chrysler 300, Dodge Challenger, and Dodge Charger models, plus 2022-2023 applications listed for those same nameplates. Motorad 824-203 uses a copper case and wax compound to respond quickly to coolant temperature changes, helping maintain stable engine operating temperature in Chrysler 300 and Dodge Charger cooling systems.

As part of Motorad’s Integrated Housing Thermostat line, this assembly is built with OE supplier quality standards and includes the thermostat, housing, and seal in one unit where applicable. The design includes a bleeder hole, jiggle pin, and OEM-style sealing surfaces to support proper coolant bleeding and sealing during replacement.

This part cross-references Dorman HELP 82403 and Gates 34776 for the same application.

What It Helps Address

• Engine running too cool or too hot
• Delayed coolant temperature regulation
• Leaking thermostat housing seal
• Cracked or worn plastic housing replacement
• Cooling system service on Chrysler 300, Dodge Challenger, and Dodge Charger

Installation Notes and Tips

Verify the 203°F temperature specification before installation and confirm the outlet diameter, bolt-hole count, and seal style match the original part. Inspect the mating surface, flush contaminated coolant if needed, and follow the vehicle service procedure for air bleeding after installation. Use new coolant and torque fasteners to the manufacturer’s specification.

Quality Assurance

Motorad manufactures this integrated housing thermostat with OEM-quality materials and OE supplier standards. It is produced to OEM specifications and processes for consistent fit and temperature control performance in the specified Chrysler and Dodge applications.