Genuine OEM Audi Camshaft Follower Tappet, part number 06E109309A. This precision-engineered component is vital for the engine's valve train, transferring the rotational motion of the camshaft to the engine valves. It ensures accurate valve timing and lift, which is critical for engine performance and efficiency. Made from high-strength, wear-resistant metal, a genuine OEM tappet provides the exact tolerances and surface finish required for smooth, reliable operation and extended engine life.