Genuine OEM Audi Engine Timing Chain Sprocket, part number 059109116G. This precision-machined gear engages with the engine's timing chain, playing a critical role in synchronizing the camshafts with the crankshaft for precise valve timing. It is located within the engine's timing assembly. Weighing 0.245 kg, it is crafted from hardened steel for extreme durability and wear resistance. Using a genuine OEM timing sprocket ensures accurate engine timing, preventing costly engine damage and maintaining optimal performance.