Genuine OEM Audi Poly V Belt, part number 059903137P. This multi-ribbed belt is essential for transmitting power from the engine's crankshaft to various accessories, such as the alternator, power steering pump, and air conditioning compressor. It ensures the proper operation of these critical systems. Genuine OEM belts are manufactured to exact specifications for length, tension, and material composition, providing optimal grip, durability, and quiet, vibration-free service life.