This is a genuine BMW wiring set, part number 65 71 9 401 624. The number stamped on the part is 65719401624; BMW's catalog files it under the short number 9401624. You will find it on our Instruments & Electronics shelf, under Cruise control.
It fits every E36 body style (318i, 318ti, 320i, 325i and M3, 1992–1999), with the M40, M42, M43, M50 or S50 engines — and the European-market versions.
BMW draws it on the Cruise control (03_2051) diagram. It weighs about 302 g (0.7 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.