Genuine OEM Volkswagen Chain Sprocket, part number 022109115. This sprocket is a critical component in the engine's timing system, responsible for engaging with the timing chain to maintain synchronized rotation between the crankshaft and camshafts. It is typically located within the engine's timing cover assembly. Constructed from high-strength metal for durability and resistance to wear. Genuine OEM sprockets are manufactured to exact specifications, ensuring proper timing accuracy and preventing premature wear of the timing chain and other related components.