This is a genuine BMW cap, part number 51 47 8 162 944. The number stamped on the part is 51478162944; BMW's catalog files it under the short number 8162944. You will find it on our Interior Body shelf, under Other Body equipment 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 Trunk trim panel (51_2109) diagram. It weighs about 1 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.
