This is one of the things I do NOT like in BMW. They change everything, so that the chances that you can just swap same parts are towards 0. Why can't everything just fit?
E.g., I had to replace an ABS unit on a k1200LT. The unit is the same as on all ABS-2 bikes. So I got another used unit from a k1200RS. What BMW did is that they changed the thread size on the pipes that connect the rear brake. Actually, they interchanged the threaded screws on the pipes :|