BMW M52TU/M54 engine cylinder head. Please make sure this matches yours. This is a used item and may show signs of age and use. Please see pictures for further condition info. We guarantee this to be free of cracks and not warped beyond repair. We recommend all heads go to a machine shop prior to instalation to check surface and seals. We do do not guarantee condition of cams, springs, seals, etc if they come with head. For further info please ask.