Genuine OEM Volkswagen engine cylinder head cover, part number 079103525J. This component serves as a protective seal for the top of the cylinder head, preventing oil leaks and protecting internal valvetrain components from contaminants. It is located at the upper section of the engine assembly. Genuine OEM construction ensures the exact material composition and factory-specified sealing surface required to maintain engine integrity and prevent oil seepage over the long service life of the engine.