Genuine OEM Hyundai Timing Belt Tensioner, part number 243702U001. This essential engine component is responsible for maintaining the correct tension on the timing belt, which synchronizes the camshaft and crankshaft. Proper tension is crucial for precise valve timing and preventing catastrophic engine damage. Weighing approximately 0.54 kg, this tensioner is engineered to exact factory specifications. Opting for a genuine OEM timing belt tensioner ensures the correct spring rate, bearing quality, and durability, providing reliable performance and protecting your engine's internal components.