Genuine OEM Audi Engine Timing Belt, part number 06A109119J. This critical component is responsible for precisely synchronizing the rotation of the engine's crankshaft and camshaft(s), ensuring the valves open and close at the correct times relative to the piston positions. Weighing 0.176 kg, this genuine OEM timing belt is manufactured to exact specifications, providing reliable and long-lasting performance essential for engine health and preventing catastrophic internal damage.