MAHLE TM 37 80 Map-Controlled Engine Coolant Thermostat with Seal

The MAHLE TM 37 80 is a map-controlled engine coolant thermostat engineered to deliver precise thermal management for optimal engine performance and efficiency. Featuring an 80°C (176°F) opening temperature, this thermostat comes complete with a sealing gasket for a leak-free installation.

Unlike conventional wax-element thermostats, the TM 37 80 uses a map-controlled design that incorporates an electrical heating resistor within the expansion element. This allows the engine control unit (ECU) to actively modulate coolant temperature based on real-time engine load, driving conditions, and emissions demands — improving fuel efficiency and reducing engine wear compared to traditional fixed-temperature thermostats.

Key Features:

• Map-controlled thermostat with integrated electrical heating resistor for ECU-commanded temperature regulation
• Opening temperature: 80°C (176°F) for precise coolant circuit control
• Includes sealing gasket for complete, ready-to-install kit
• Manufactured to OE specifications — trusted by OEMs and professional technicians worldwide
• Direct OEM replacement for General Motors, Opel/Vauxhall, Chevrolet, and GMC applications

OEM Cross-References:

• GM / Chevrolet / Opel / Vauxhall: 55576890
• GMC / Opel: 55593035
• MAHLE Internal: 72363672
• Opel: 1338247, 1338381, 25200456
• Motorad equivalent: 797-176

MAHLE is a globally recognized OE supplier and one of the world's largest manufacturers of thermal management, engine, and filtration components. Every MAHLE thermostat is built to the same standards as the original factory part, ensuring long-lasting reliability and accurate temperature control.