This is a genuine BMW retaining arm, part number 82 72 2 159 334. The number stamped on the part is 82722159334; BMW's catalog files it under the short number 2159334. You will find it on our Merchandise & Accessories shelf, under Other Universal Accessories parts.
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 5 diagrams, among them Bicycle rack, trailer coupling (03_3357) and Bicycle rack, trailer coupling (03_3358). It weighs about 534 g (1.2 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
