Motorad 924-221 Engine Coolant Thermostat Housing Assembly

Integrated Housing Thermostat for OE Cooling Control

The Motorad Integrated Housing Thermostat, part number 924-221, is an engine coolant thermostat housing assembly built for precise temperature regulation in the cooling system. It is engineered for Chevrolet Spark, Spark Classic, and Beat applications with OE-specified fitment and a 221°F opening temperature.

Motorad’s Integrated Housing Thermostat line focuses on OE-style replacement assemblies that combine the thermostat, housing, and seal into one service part for a cleaner repair on the cooling system.

Key Features

• Engine coolant thermostat housing assembly with integrated thermostat and housing design
• 221°F temperature rating for OE-specified cooling control
• Aluminum, steel, and copper construction with silver finish
• Rubber O-ring seal included for the housing interface
• Bleeder hole included to assist with coolant air bleeding during service
• 3-bolt mounting pattern with 1 outlet port and 1.19 in outlet diameter
• OE supplier manufacturing using OEM-quality materials and processes

Detailed Description

Motorad 924-221 is an integrated housing thermostat assembly made for direct replacement in select Chevrolet cooling systems. The copper case and wax compound are used to respond quickly to coolant temperature changes, helping the thermostat open at the specified 221°F point. This design supports stable engine operating temperature in vehicles that rely on an integrated thermostat housing rather than a separate thermostat-only service part. This part cross-references Dorman - OE Solutions 902-753 for the same application.

Fits 2018-2021 Chevrolet Beat, N/A. Fits 2016 Chevrolet Spark Classic, N/A. Fits 2011-2015 Chevrolet Spark, N/A. The Motorad 924-221 is a direct-fit option for these Chevrolet Spark and Beat applications when replacing the thermostat housing assembly.

Common Cooling System Issues It Can Address

• Engine running too cool or too hot due to thermostat control problems
• Coolant leaks at the thermostat housing seal area
• Air trapped in the cooling system after thermostat service
• Delayed coolant temperature response from a worn thermostat element
• Housing wear or corrosion at the integrated thermostat assembly

Installation Notes and Tips

Verify the OE temperature rating, outlet diameter, bolt-hole count, and seal style before installation. Inspect the mating surface, replace damaged coolant hoses or clamps as needed, and follow the vehicle service procedure for coolant refill and air bleeding. The included O-ring seal should be seated correctly to help prevent leaks at the housing joint.

Quality Assurance

This thermostat housing assembly is manufactured to OEM specifications and processes by an OE supplier using OEM-quality materials and safety standards. The aluminum, steel, and copper construction is intended to withstand demanding automotive cooling system conditions.