Genuine OEM Volkswagen Toothed Belt, part number 028109119K. This toothed belt is crucial for synchronizing the rotation of the crankshaft and camshafts, ensuring proper engine timing. It is part of the engine's timing system. Made from high-strength rubber with reinforced teeth for reliable operation. Essential for engine performance and longevity, genuine OEM ensures precise tooth profiling and material durability for accurate timing.