Genuine OEM Hyundai Serpentine V-Rib Belt, part number 252123C100. This critical engine component is responsible for driving multiple peripheral devices, such as the alternator, power steering pump, and air conditioning compressor. It measures approximately 1.51 meters in length. Choosing a genuine OEM belt ensures the correct length, rib count, and material composition for optimal tension, reduced slippage, and a long, quiet service life, preventing premature wear on engine accessories.