Genuine OEM Hyundai Exhaust Valve Seat, part number 221132M800. This precision-machined component is pressed into the cylinder head, providing a durable and precise sealing surface for the exhaust valve. It ensures proper valve seating, critical for maintaining engine compression and efficient exhaust gas expulsion. Using a genuine OEM valve seat guarantees the correct material hardness and dimensional accuracy, which is essential for long-term valve sealing and engine performance.