Genuine OEM BMW Engine Cylinder Head Gasket, part number 11128589107. This gasket seals the combustion chambers and coolant passages between the cylinder head and engine block, ensuring proper engine operation. It is a critical component in the engine assembly. The part weighs 0.653 kg. Genuine OEM gaskets are vital for engine sealing to guarantee precise fit, correct material properties for heat and pressure resistance, and long-term reliability.