Genuine OEM Jaguar Step Tappet, part number C2C40080. This essential component is part of the engine's valve train, responsible for transferring the motion from the camshaft to the valves. It sits between the camshaft lobe and the valve stem, ensuring precise valve opening and closing while minimizing friction and wear. Opting for a genuine OEM tappet guarantees the correct material composition, surface hardness, and precise dimensions for optimal engine performance and longevity.