Genuine OEM Citroen Alternator Pulley, part number 1622780280. This component is vital for transferring rotational energy from the engine's accessory belt to the alternator, enabling it to generate electrical power. It is an integral part of the alternator assembly. Weighing approximately 0.54 kg, this pulley is engineered for precise balance and durability, often featuring a one-way clutch or decoupler for smooth operation. Using a genuine OEM alternator pulley ensures correct belt alignment, reduces vibration, and provides reliable power generation, preventing premature wear on the alternator and belt system.