Window guide, left rear door — a genuine BMW part, number 51 34 8 266 125. The number stamped on the part is 51348266125; BMW's catalog files it under the short number 8266125. You will find it on our Interior Body shelf, under Other Body equipment parts. It supersedes the older number 8194691, so a part carrying that number is the same part.
It fits the E46 sedan (320i, 323i, 325i, 328i and 330i, 1999–2005), with the M52, M54 or M56 engines — and the European-market versions.
BMW draws it on the Door Window Lifting Mechanism Rear (51_3227) diagram. It weighs about 625 g (1.4 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
