Genuine OEM Volkswagen Chain Sprocket, part number 03P103319A. This sprocket is a critical component of the engine's timing system, engaging with the timing chain to ensure synchronized operation of the crankshaft and camshafts. It has dimensions of 0.052m x 0.052m x 0.015m and weighs 0.092 kg. Genuine OEM sprockets are manufactured to exact tolerances for reliable timing and long service life.