Motorad 458-192 Engine Coolant Thermostat Housing Assembly

Integrated Thermostat Housing for Mercedes-Benz Cooling Systems

Motorad 458-192 is an engine coolant thermostat housing assembly built for OE-style cooling system service. It is specified at 192 degrees F and includes the thermostat, housing, and seal for direct replacement on select Mercedes-Benz and Chrysler applications.

Compatible With Mercedes-Benz E320, ML500, S500, SL500, and Chrysler Crossfire applications that call for a 192F integrated housing thermostat, this part is built to match factory temperature control requirements.

Key Features

• Integrated housing thermostat assembly for engine coolant temperature control
• 192 Deg. F opening temperature for OE-specified applications
• Aluminum, stainless steel, and copper construction
• Rubber gasket/seal included
• 2 bolt holes and 1 outlet port
• Silver finish
• Offset design with air relief valve where applicable
• Manufactured to OEM specifications and processes

Product Details

The Motorad Integrated Housing Thermostat line is built for vehicles that use a combined thermostat and housing design. Part number 458-192 uses OEM-quality materials and OE-supplier manufacturing standards, with a copper case and wax compound for quick response to coolant temperature changes. The housing design and seal arrangement are intended to match factory fitment requirements on many Mercedes-Benz V6 and V8 applications, including Mercedes-Benz C320, E500, ML350, and CLK500 models.

This part cross-references Dorman OE Solutions 902-5911 for the same application.

Common Cooling System Issues It Can Address

• Engine running too cool or too warm due to thermostat wear
• Coolant leaks at the thermostat housing or seal surface
• Delayed coolant temperature response after startup
• Temperature instability in high-load driving conditions
• Service replacement for cracked or aging integrated housings

Installation Notes

• Verify the OE-specified 192F temperature requirement before installation
• Inspect the mating surface and coolant hoses for wear or contamination
• Use the included rubber seal during assembly
• Bleeder hole, jiggle pin, bolts, and mounting hardware are not included unless shown in the vehicle application
• Confirm fitment by year, make, and model before ordering

Quality Assurance

Motorad manufactures this thermostat housing assembly with OEM quality materials and safety standards as an OE supplier. Part number 458-192 is built to OE specifications for dependable cooling system service on select Mercedes-Benz and Chrysler vehicles.