Genuine OEM Hyundai Camshaft Plug, part number 221402G000. This plug is designed to seal an opening on the cylinder head, commonly found at the end of a camshaft bore. Its primary function is to prevent oil leaks and maintain proper oil pressure within the engine's valvetrain system. Positioned on the cylinder head, it is a critical component for engine integrity. Choosing a genuine OEM plug ensures the correct dimensions, material composition, and sealing properties to prevent leaks and maintain long-term engine performance.