BMW 11127568582 Cylinder Head Cover Assembly

The BMW 11127568582 cylinder head cover is a genuine OEM component designed to enclose the valve train assembly on BMW N42 and N46 four-cylinder gasoline engines. Manufactured from high-temperature resistant reinforced plastic, it integrates the crankcase ventilation system interface and oil filler neck. This cover ensures reliable sealing of the cylinder head top surface, preventing oil seepage and protecting internal components from contaminants. It supersedes earlier part numbers 11127509523 and 11127526671. Direct fitment for BMW 3 Series (E46), X3 (E83), and Z4 (E85) models produced between 1999 and 2013 equipped with N42B18, N46B20, or N46N engines. Installation requires new gasket set and torque-to-spec fastening sequence per BMW repair instructions.