Motorad 351-192 Engine Coolant Thermostat Housing Assembly

Integrated Housing Thermostat for Mercedes-Benz Cooling Systems

Motorad 351-192 is an integrated housing thermostat assembly built for Mercedes-Benz cooling system service. It combines the thermostat, housing, and seal in one OE-style replacement for select C-Class and SLK applications with a 192°F opening temperature.

Key Features

• Integrated housing thermostat assembly for simplified cooling system service
• 192°F start-to-open temperature for OE-specified thermal control
• Includes thermostat, housing, and rubber seal where applicable
• Three bolt holes and two outlet ports
• Constructed from aluminum, stainless steel, and copper components
• Silver finish with OEM-style sealing surfaces
• OE supplier manufacturing with OEM specifications and processes

Product Details

The Motorad Integrated Housing Thermostat line focuses on OE-style cooling system replacement parts that match factory specifications. Part number 351-192 uses a copper case and wax compound for quick response to coolant temperature changes, along with an offset design and air relief valve where applicable. This makes Motorad 351-192 a direct-fit service part for Mercedes-Benz SLK230, SLK200, C230, and C220 applications that call for a 192°F thermostat housing assembly.

Fits 2003-2004 Mercedes-Benz SLK200, N/A. Fits 1997-2004 Mercedes-Benz SLK230, N/A. Fits 1997-2000 Mercedes-Benz C230, N/A. Fits 1994-1997 Mercedes-Benz C220, N/A.

This part cross-references Stant 14589 and Dayco 86099 for the same application.

Common Cooling System Issues Addressed

• Engine running too cool or too warm due to thermostat wear
• Coolant temperature instability during normal driving
• Housing leaks at the thermostat seal or mating surface
• Delayed thermostat response from aging wax element
• Service concerns when replacing a thermostat and housing separately

Installation Notes and Tips

Verify the OE-specified 192°F temperature before installation. Inspect the mating surfaces, replace the rubber seal as supplied, and confirm the outlet port orientation matches the original housing. Bleeder hole, jiggle pin, bolts, and mounting hardware are not included unless already present on the vehicle-specific setup.

Quality Assurance

Motorad manufactures this thermostat housing assembly to OEM quality materials and safety standards as an OE supplier, using OEM specifications and processes for demanding automotive cooling systems.