This is a genuine BMW left cover f hardtop mounting, part number 51 43 8 172 805. The number stamped on the part is 51438172805; BMW's catalog files it under the short number 8172805. 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 Lateral trim panel rear (51_2096) diagram. It weighs about 6 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.
