Genuine OEM Audi Engine V-Ribbed Belt, part number 059903137CA. This critical belt is responsible for transmitting power from the engine's crankshaft to various accessory components, such as the alternator, water pump, and power steering pump. Its multi-ribbed design ensures efficient power transfer and reduces slippage. Weighing approximately 0.185 kg, using a genuine OEM V-ribbed belt guarantees the precise length, material durability, and rib profile for optimal accessory drive performance and extended service life.