MAHLE Engine Coolant Thermostat O-Ring Seal

The MAHLE Engine Coolant Thermostat O-Ring Seal (also sold as a thermostat gasket or thermostat seal) creates a leak-resistant seal between the thermostat or thermostat housing and the engine. It helps keep coolant in the cooling system and supports consistent engine operating temperature.

Key Features:

• Designed to seal the thermostat housing joint against coolant leaks
• Made with sealing materials chosen to resist heat, coolant and engine fluids
• Built to meet OE-level fit and function standards
• Backed by MAHLE's long record as an original equipment supplier to automakers worldwide

MAHLE is a global supplier of engine components and thermal management systems. It is known for engineering and quality control in gaskets, seals, filters and cooling components. Replacing the thermostat seal whenever the thermostat is serviced helps protect against coolant loss and overheating. It is an inexpensive part that matters for long-term engine reliability.