Genuine OEM Audi Lower Timing Chain Tensioner, part number 059109507D. This essential engine component is responsible for maintaining the correct tension on the lower timing chain, which is critical for precise valve timing and engine synchronization. It features a durable metal body with a low-friction plastic guide surface to ensure smooth chain operation. Weighing 0.577 kg, this tensioner is robust. Choosing a genuine OEM timing chain tensioner guarantees accurate tensioning, proper chain guidance, and long-term reliability, preventing costly engine damage due to timing chain slack or failure.

Catalogue entry: TENSIONER.