Genuine OEM Hyundai Crankshaft Damper Pulley, part number 231242A003. This vital engine component, also known as a harmonic balancer, is designed to absorb and counteract torsional vibrations produced by the crankshaft during engine operation, protecting the crankshaft and other engine components from excessive stress. It also serves as the main drive pulley for accessory belts, powering components like the alternator and power steering pump. This pulley weighs 4.625 kg and measures approximately 17.8 cm in length, 12.8 cm in width, and 4.8 cm in height. Choosing a genuine OEM damper pulley ensures precise balancing, correct vibration dampening characteristics, and durable construction for reliable long-term engine performance.