Genuine OEM Volkswagen Low Timing Chain Tensioner, part number 06E109507H. This essential engine component is responsible for maintaining the correct tension on the timing chain, which is crucial for synchronized operation of the engine's camshafts and crankshaft. It ensures precise valve timing and prevents chain slack that could lead to engine damage. Weighing approximately 0.20 kg, this tensioner features a durable guide surface. Choosing a genuine OEM timing chain tensioner guarantees factory tolerance, material quality, and precise operation for long-term engine reliability.