Genuine OEM Volkswagen A/C Compressor Poly V-Belt, part number 06E903137AE. This multi-ribbed serpentine belt is responsible for driving the air conditioning compressor, which is essential for the vehicle's climate control system. It transmits power efficiently from the engine's crankshaft pulley to the compressor. The belt weighs 0.229 kg, with packaged dimensions of 0.57m in length, 0.2m in width, and 0.023m in height. Opting for a genuine OEM poly V-belt ensures the correct material composition, precise length, and rib profile for optimal tension, reduced slippage, and a long, quiet service life without premature wear.