Motorad 1039-207 Engine Coolant Thermostat Housing Assembly

Integrated Housing Thermostat for Mercedes-Benz Cooling Systems

Motorad 1039-207 is an engine coolant thermostat housing assembly built for Mercedes-Benz applications that require a 207°F opening temperature. It combines the thermostat, housing, sensor, seal, and spring clip in an integrated design for direct replacement service on select C-Class, GLC, and SLC models.

The Motorad Integrated Housing Thermostat line focuses on OE-style fit and temperature control for modern cooling systems. This 1039-207 assembly uses OEM-quality materials and manufacturing processes, with a copper case and wax compound for quick response to coolant temperature changes.

• Opening temperature: 207°F / start-to-open temperature: 207°F
• Integrated thermostat housing assembly with 4 outlet ports
• Plastic housing with black finish
• Rubber gasket/seal included
• Bolts and mounting hardware included
• 2-bolt mounting pattern
• OE supplier manufacturing standards and OEM specifications
• Cross-reference: Dorman - OE Solutions 902-5842

Detailed Product Overview

This thermostat housing assembly is engineered for direct replacement in Mercedes-Benz cooling systems that call for the specified 207°F calibration. The integrated housing design helps simplify service by combining the thermostat and housing into one assembly, while the copper case and wax compound support responsive coolant temperature regulation. Motorad 1039-207 is a practical choice for maintaining stable engine operating temperature in vehicles such as the Mercedes-Benz C200, GLC350e, and GLC250.

Fits 2015-2018 Mercedes-Benz C200, N/A. Fits 2018-2020 Mercedes-Benz GLC350e, N/A. Fits 2017-2018 Mercedes-Benz GLC250, N/A. Fits 2017-2020 Mercedes-Benz SLC180, N/A. Fits 2017 Mercedes-Benz SLC200, N/A. Fits 2016-2018 Mercedes-Benz C350e, N/A. Fits 2018-2019 Mercedes-Benz C180, N/A. Fits 2020 Mercedes-Benz C200, N/A. Fits 2021 Mercedes-Benz GLC300e, N/A.

What This Part Helps Address

• Engine running too cool or too warm due to thermostat wear
• Coolant temperature instability during normal driving
• Leaks at the thermostat housing or seal area
• Service issues caused by a cracked or aging plastic housing
• Replacement needs on Mercedes-Benz C200, GLC350e, GLC250, and related models

Installation Notes and Tips

Verify the OE-specified 207°F temperature and confirm the outlet port layout before installation. Inspect the mating surfaces, replace any damaged coolant hoses as needed, and follow the vehicle service procedure for coolant refill and air bleeding. This assembly includes a rubber seal and mounting hardware; no installation tool is included.

Quality Assurance

Motorad manufactures this integrated housing thermostat to OEM specifications and processes as an OE supplier. The design is built with OEM-quality materials and safety standards to handle demanding automotive cooling system conditions.