Genuine OEM Audi Engine Timing Chain Sprocket, part number 05A109116. This precision-engineered sprocket is a vital component of the engine's timing system, engaging with the timing chain to synchronize the rotation of various engine components. It is located within the engine's timing cover assembly. Weighing 0.277 kg, this sprocket is manufactured to exact tolerances for reliable performance. Using a genuine OEM timing chain sprocket ensures accurate engine timing and long-term durability, preventing costly engine damage.