This is a genuine BMW siren lock with wire, part number 82 92 9 402 506. The number stamped on the part is 82929402506; BMW's catalog files it under the short number 9402506. You will find it on our Merchandise & Accessories shelf, under Other Universal Accessories parts. BMW has since replaced it with 9402639.
It fits the E36 sedan and coupe (318i, 320i, 325i and M3, 1992–1999), with the M40, M42, M43, M50, M52 or S50 engines — and the European-market versions.
BMW draws it on 3 diagrams, among them Alarm system (03_0984) and Alarm system (03_0986). It weighs about 36 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.
