Genuine OEM Volkswagen Oil Pump Drive Sprocket, part number 03E105209N. This precision-engineered sprocket is a vital engine component, responsible for transmitting power to the oil pump to ensure consistent lubrication. With a diameter of approximately 0.05m and a thickness of 0.016m, it is designed for exact fitment. Using a genuine OEM sprocket guarantees the correct tooth profile, material hardness, and dimensional accuracy for reliable power transmission and long-term engine health.