Genuine OEM Audi Poly V Rib Belt, part number 059903137AE. This essential belt transmits power from the engine's crankshaft to various accessories such as the alternator, power steering pump, and air conditioning compressor. Its multi-ribbed design ensures efficient power transfer and reduces slippage. Weighing 0.257 kg, this belt is engineered for durability and precise tension. Using a genuine OEM belt guarantees the correct length, material composition, and rib profile for optimal accessory drive performance and longevity.