Genuine OEM BMW engine valve cover, part number 11128699190. This cover seals the top of the cylinder head, protecting internal engine components from dirt and moisture, and often houses parts of the valvetrain. It is a critical component for engine integrity and emissions control. The diagram shows it as the lower cover on the engine block. Genuine OEM valve covers are manufactured from high-quality materials to withstand engine temperatures and pressures, ensuring a reliable seal.