Genuine OEM Volkswagen Generator Poly V-Pulley, part number 07K903119. This multi-ribbed pulley is a key component in the vehicle's charging system, responsible for driving the generator (alternator) to produce electrical power. It ensures that the battery remains charged and all electrical systems function correctly. Weighing 0.461 kg, this genuine OEM pulley is manufactured to precise tolerances, ensuring smooth operation, minimal vibration, and long service life for the generator and the entire accessory drive system.