Genuine OEM Audi Engine Coolant Thermostat Housing Gasket, part number 021121119A. This gasket is specifically designed to create a leak-proof seal for the engine coolant thermostat housing, preventing coolant loss and maintaining optimal engine operating temperature. Weighing approximately 0.001 kg, it ensures a tight and reliable seal. Using a genuine OEM gasket guarantees the correct material composition and precise dimensions, crucial for the long-term reliability of the engine cooling system.