I'm not sure about the part numbers but if you are looking for the E-12 or early E24 mount it won't fit the car. I went through a considerable amount of time designing and fabricating a mount for an early block to go into my 85 535i. I had the early mounts, both the metal bracket and the rubber motor mount itself but it wasn't even close. Actually the cutting and welding wasn't too bad but I spent a long time trying to figure out what it should look like while being strong enough without interfering with anything like the A/C or exhaust.