Genuine OEM Audi Accessory Drive Belt, part number 06E903137N. This vital component is responsible for transmitting rotational power from the engine's crankshaft to various ancillary systems, including the alternator, power steering pump, and air conditioning compressor. It is positioned around multiple pulleys on the front of the engine, ensuring all accessories operate in sync. Constructed from high-strength, flexible rubber compounds with internal reinforcement, this multi-ribbed belt is designed for durability and resistance to stretching and cracking under continuous load and temperature fluctuations. Choosing a genuine OEM accessory drive belt guarantees the correct length, tension, and material quality for optimal performance and longevity of all driven accessories.