Genuine OEM Volkswagen Chain Tensioner Gasket, part number 079109139K. This precisely cut gasket is designed to create a leak-proof seal for the engine's timing chain tensioner, preventing the escape of engine oil and ensuring consistent lubrication. It is positioned between the chain tensioner and the engine block or cover. Made from a durable composite material, it measures approximately 165mm in length. Using a genuine OEM gasket ensures exact fitment, proper sealing characteristics, and resistance to engine fluids and temperatures for long-term reliability.