Genuine OEM Hyundai Cylinder Head Gasket, part number 223112U020. This vital engine component creates a critical seal between the cylinder head and the engine block. Its primary function is to prevent the escape of combustion gases, oil, and coolant, ensuring proper engine compression and fluid containment. The gasket is positioned directly between the cylinder head and the engine block. Using a genuine OEM cylinder head gasket guarantees the precise material composition and thickness required for a durable, leak-free seal, which is essential for engine longevity and performance.