Genuine OEM Audi Poly V-Belt, part number 066145933J. This belt is responsible for transmitting power from the engine's crankshaft to various accessories such as the alternator, power steering pump, and air conditioning compressor. It is located within the engine's accessory drive system. Weighing approximately 0.151 kg, this durable rubber belt is engineered for specific tension and flexibility. Choosing a genuine OEM poly V-belt ensures the correct length, rib profile, and material composition for reliable power transmission and extended service life, preventing accessory failures.