Genuine OEM Audi Belt Idler Pulley, part number 07D145276C. This pulley is a key component in the engine's accessory drive system, responsible for guiding the serpentine belt and maintaining its proper tension. This ensures the efficient and smooth operation of various engine accessories. Weighing 0.212 kg, this pulley features a durable construction. Choosing a genuine OEM idler pulley guarantees precise bearing tolerances and robust materials, essential for long-term reliability and preventing premature belt wear or accessory malfunction.