Voltage regulator
12 31 7 540 65612317540656·short number 7540656Genuine 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 7 540 656: Voltage regulator. The number stamped on the part is 12317540656; BMW's catalog files it under the short number 7540656. You will find it on our Electrical shelf, under Alternator with motor and mounting. It supersedes the older numbers 7505922 and 7523059, so a part carrying any of them is the same part.
It fits every E46 body style (316i, 316ti, 318i and 318ti, 2001–2004), with the N40, N42, N45 or N46 engines.
BMW draws it on 3 diagrams, among them Alternator single parts, 120/140A Bosch (12_1148) and Alternator (12_1309). It weighs about 80 g (0.2 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 7 540 656123175406567540656Related Parts
1247892Voltage regulator1432965Voltage regulator1713491Voltage regulator1713839Voltage regulator1726022Voltage regulator1739193Voltage regulator1739365Voltage regulator1747920Voltage regulator1748607Voltage regulator7511084Voltage regulator7540655Voltage regulator7551153Voltage regulator7559183Voltage regulator7788246Voltage regulator7797662Voltage regulator8509988Voltage regulator1203503Voltage regulator1268387Voltage regulator1271664Voltage regulator1276138Voltage regulator1286073Voltage regulator1344033Voltage regulator1356063Voltage regulator1359039Voltage regulator+119 more with this name. See them all
Every used part is inspected and graded before listing. Condition grades:
- Good — minimal wear, fully functional.
- Fair — normal wear, fully functional.
- Acceptable — visible wear, still functional.
Returns: 30 days if a part arrives damaged or isn't what the listing described. Full policy.
Shipping: Ships within the US. Orders ship within 1–2 business days; small parcels ship free on orders of $75.00 or more. Oversize items ship at a flat $49.99 each — free shipping does not cover them.