Seat rail extension adapter — a genuine BMW part, number 52 10 8 191 181. The number stamped on the part is 52108191181; BMW's catalog files it under the short number 8191181. You will find it on our Interior Body shelf, under Tail trim.
It fits every E36 body style (318i, 318ti, 320i, 323i and 325i, 1992–1999), with the M40, M42, M43, M44, M50 or M52 engines — and the European-market versions.
BMW draws it on 7 diagrams, among them Front Seat Rail Electrical/Single Parts (52_0565) and Front Seat Rail (52_0571). BMW's catalog calls for four of these at each place it is fitted. It weighs about 1.0 kg (2.3 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
