Genuine OEM Citroen Belt Tensioner, part number 1613837980. This essential engine component is designed to maintain optimal tension on the vehicle's drive belts, preventing slippage and ensuring the proper operation of various engine accessories or timing components. Weighing 0.639 kg and measuring approximately 0.285m in length, it is built for durability. Choosing a genuine OEM belt tensioner guarantees precise spring calibration, robust bearing quality, and correct mounting geometry for reliable, long-lasting performance and prevention of premature belt wear.