Part #: 51331868829 Vehicle Compatibility: 1971-1981 E12 518i, 520i, 525i, 528i, 535i 1980-1990 E28 518i, 520i, 524td, 525i, 528i, 535i E28 M5, M535i Notes: This is the Left Front window lift mechanism w/ drive motor Came off of BMW E28s I have 10 of these in stock, all tested and working Slides work and smooth Mostly the same quality across the board, minor variations in surface wear All functional! Put this in your vintage 5 Series today! Please check compatibility before purchasing If there is any problem, please dont hesitate to call me and resolve the issue before leaving negative feedback. Wear: All wear is shown in photos