Voltage regulator
12 31 7 551 15312317551153·short number 7551153Genuine BMW Part
Photos coming soon — see the BMW diagram below
02 View BMW DiagramSee this part on the official exploded view→Genuine BMW part 12 31 7 551 153: Voltage regulator. The number stamped on the part is 12317551153; BMW's catalog files it under the short number 7551153. You will find it on our Electrical shelf, under Alternator with motor and mounting. It supersedes the older number 7501749, so a part carrying that number is the same part.
It fits every E46 body style (320i, 325i, 330i and M3, 2001–2006), with the M54 or S54 engines — and the European-market versions.
BMW draws it on 5 diagrams, among them ALTERNATOR PARTS 90A Valeo (12_1083) and Alternator single parts, 120A Bosch (12_1084). It weighs about 132 g (0.3 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
Details
12 31 7 551 153123175511537551153Supersession
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- Good — minimal wear, fully functional.
- Fair — normal wear, fully functional.
- Acceptable — visible wear, still functional.
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