This is a genuine BMW guide bush, part number 52 20 8 208 877. The number stamped on the part is 52208208877; BMW's catalog files it under the short number 8208877. You will find it on our Interior Body shelf, under Seatbelts.
It fits the E46 sedan and coupe (320i, 323i, 325i, 328i, 330i and M3, 1999–2006), with the M52, M54, M56 or S54 engines — and the European-market versions.
BMW draws it on 3 diagrams, among them Rear seat head restraint (52_0759) and Rear seat head restraint (52_2377). BMW's catalog calls for four of these at each place it is fitted. It weighs about 3 g (under 0.1 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
