Genuine OEM Hyundai Seal-Valve Stem, part number 222242U000. This seal is fitted to the valve stem to prevent engine oil from entering the combustion chamber and to prevent oil from escaping into the intake or exhaust ports. Proper sealing is vital for maintaining engine compression, performance, and emissions standards. Genuine OEM seals are made from high-quality materials designed to withstand engine temperatures and pressures for extended service life.