Genuine OEM Volkswagen V-Belt Pulley With Vibration Damper, part number 026105243A. This pulley is mounted on the crankshaft and is responsible for driving the engine's accessory belts, such as the alternator and power steering pump. It incorporates a vibration damper to smooth out rotational forces. The part weighs 1.685 kg. Genuine OEM parts ensure precise balance and material integrity, crucial for preventing excessive vibration and ensuring the longevity of the crankshaft and accessory drive system.