Genuine OEM Audi Timing Chain Tensioner, part number 07P145275A. This critical engine component maintains proper tension on the timing chain, preventing slack and ensuring precise valve timing for optimal engine performance. Located within the engine's timing assembly, it plays a vital role in the valvetrain. Weighing approximately 0.27 kg, this tensioner is built to exact specifications. Choosing a genuine OEM timing chain tensioner ensures correct spring tension, material quality, and precise fitment, which are crucial for reliable engine operation and preventing catastrophic engine damage.