MAHLE TX21087 Engine Coolant Thermostat Insert C - 87

The MAHLE TX21087 is a precision-engineered thermostat insert designed to regulate engine coolant temperature in automotive cooling systems. This OE-quality component ensures your engine reaches optimal operating temperature quickly while maintaining consistent thermal management for improved performance and reduced emissions.

Key Features:

• Opening temperature: 87°C (189°F) - indicated by the last two digits in the part number
• Designed to OEM specifications for precise temperature control
• Wax-filled expansion element provides reliable, maintenance-free operation
• Enables rapid engine warm-up for optimal combustion efficiency
• Maintains constant operating temperature to minimize wear and emissions
• Direct replacement thermostat insert for specific vehicle applications

MAHLE is a world-leading manufacturer of original equipment and aftermarket engine components, trusted by OEMs and technicians globally. Their thermostat inserts regulate coolant flow up to approximately 20 m³/h in passenger cars, commercial vehicles, and other engine applications. The precision expansion element opens and closes based on coolant temperature, directing flow through the radiator when cooling is needed and bypassing it during warm-up for faster engine operation.