Genuine OEM Audi Engine Poly V-Belt Pulley, part number 059903119K. This component transfers power from the engine to various accessory components, driving essential systems like the alternator or power steering pump. It is an integral part of the engine's accessory belt drive system. Weighing 0.343 kg and measuring 0.062m in diameter, this pulley is engineered for precise fitment and smooth operation. Using a genuine OEM pulley ensures correct belt alignment, optimal tension, and long-term durability, preventing premature wear on the belt and other driven accessories.