This is a genuine BMW connecting support, part number 18 21 7 039 780. The number stamped on the part is 18217039780; BMW's catalog files it under the short number 7039780. You will find it on our Exhaust shelf, under Other Exhaust system parts.
It fits the E46 sedan, touring and compact (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 Underfloor coating (51_3284) diagram. It weighs about 770 g (1.7 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
