This is a genuine BMW cup holder, part number 82 11 0 027 936. The number stamped on the part is 82110027936; BMW's catalog files it under the short number 0027936. You will find it on our Merchandise & Accessories shelf, under Other Universal Accessories parts.
It fits the E36 sedan, coupe, convertible and compact (318i, 318ti, 320i, 323i, 325i, 328i and M3, 1992–1999), with the M42, M44, M50, M52, S50 or S52 engines. It also fits the E46 sedan, coupe, convertible and touring (320i, 323i, 325i, 328i, 330i and M3, 1999–2006), with the M52, M54, M56 or S54 engines.
BMW draws it on the Cup holder (03_1719) diagram.
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.