This is a genuine BMW window guide rail right, part number 41 21 8 162 146. The number stamped on the part is 41218162146; BMW's catalog files it under the short number 8162146. You will find it on our Exterior Body shelf, under Other Bodywork parts.
It fits the E36 convertible (318i, 323i, 325i, 328i and M3, 1994–1999), with the M42, M43, M44, M50, M52 or S50 and other engines — and the European-market versions.
BMW draws it on the Floor Panel Trunk/Wheel Housing Rear (41_0854) diagram. It weighs about 76 g (0.2 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
