The Sucking Jet Pump is a brake vacuum booster valve designed to ensure there is adequate vacuum assist in the brake system even when vacuum from the intake manifold is low. This part number is only used on the 2001-2006 M54 engines - E46 325i/330i, E39 525i/530i, and Z3 2.5/3.0. The Sucking Jet Pump boosts vacuum for the brake system so if your brakes take additional pedal pressure stop then you might have a vacuum leak or a failed SJP.
This is a M54 sucking jet pump manufactured by Rein Automotive (CRP) - a front-line supplier of original equipment, private label, and in-house engineered replacement parts. Rein replacement products meet or exceed all of BMW's original design, fitment, and performance requirements and they carry out testing with ISO and German TUV for quality control. Rein parts are the best alternative to more expensive Original BMW parts because they are virtually identical without the inflated price tag. This part has a two year warranty.
BMW Fitments:
3 Series
E46 (99-05) > 325Ci
E46 (99-05) > 325i
E46 (99-05) > 325xi
E46 (99-05) > 330Ci
E46 (99-05) > 330i
E46 (99-05) > 330xi
5 Series
E39 (97-03) > 525i
E39 (97-03) > 530i
Z Series
E36/7 / E36/8 Z3 (96-02) > Z3 2.5
E36/7 / E36/8 Z3 (96-02) > Z3 3.0