Genuine OEM Hyundai Crankshaft Damper Pulley, part number 231232B720. This essential engine component serves a dual purpose: it reduces harmful torsional vibrations produced by the crankshaft and provides the rotational force to drive various accessory belts, such as the alternator, power steering pump, and air conditioning compressor. It is mounted directly to the crankshaft at the front of the engine. This pulley weighs approximately 1.42 kg and has a diameter of about 169 mm. Choosing a genuine OEM damper pulley ensures the correct balance, vibration dampening characteristics, and belt groove profile for optimal engine smoothness, accessory drive longevity, and overall vehicle performance.