This is a genuine BMW fuel filter with pressue regulator, part number 13 32 7 512 019. The number stamped on the part is 13327512019; BMW's catalog files it under the short number 7512019. You will find it on our Air Intake shelf, under Other Fuel preparation and control parts. It supersedes the older number 1439407, so a part carrying that number is the same part.
It fits every E46 body style (320i, 325i and 330i, 2001–2006), with the M54 engine — and the European-market versions.
BMW draws it on 3 diagrams, among them Fuel filter, pressue regulator (13_0904) and Fuel filter, pressue regulator (13_0946). It weighs about 410 g (0.9 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.