Genuine OEM Hyundai Thermostat Housing Gasket, part number 256422G500. This gasket is designed to provide a secure, leak-proof seal for the thermostat housing, preventing coolant loss from the engine cooling system. It is positioned between the thermostat housing and the engine block or cylinder head. Made from high-quality rubber, it weighs approximately 0.009 kg and measures 52.5mm in length and width. Choosing a genuine OEM gasket ensures the correct material properties and precise dimensions for a reliable, long-lasting seal in a high-temperature environment.