Factory top hydraulic set for a 2002-2006 E46 BMW M3. This set includes all of the major components in the soft top hydraulic system such as the hydraulic pump/motor, main lift bow cylinders, hydraulic cylinders / hinges, hydraulic lines and pump valve hoses. This set was removed from a 2002 M3 with a good working soft top assembly. No leaks were found in the system during removal. This assembly is very difficult to install. We highly recommend having this installed by a dealer or professional shop. Please do your research on installation, prior to purchase. You will need to reuse your existing hardware for installation.