Genuine OEM Audi Timing Belt, part number 078109119J. This essential engine component is responsible for synchronizing the rotational movements of the crankshaft and camshaft, ensuring that the engine's valves open and close at precisely the correct times relative to piston position. This precise timing is crucial for optimal engine combustion, power, and efficiency. Weighing 0.297 kg, this belt is manufactured to exact specifications for durability and reliable performance. Opting for a genuine OEM timing belt guarantees the correct material composition, tooth profile, and tensile strength, which are vital for preventing catastrophic engine damage due to timing discrepancies or belt failure.