Genuine BMW part 63 25 9 405 334: Installation kit 3RD brake light. The number stamped on the part is 63259405334; BMW's catalog files it under the short number 9405334. You will find it on our Lighting shelf, under Flash signalling light (authorities).
It fits the E36 sedan and coupe (318i, 320i, 323i, 325i, 328i and M3, 1992–1999), with the M40, M42, M43, M44, M50 or M52 and other engines — and the European-market versions.
BMW draws it on the Third stoplamp (03_2195) diagram. It weighs about 409 g (0.9 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
