Starter motor generator (exchange unit)
12 31 7 649 39212317649392·short number 7649392Genuine BMW Part
Photos coming soon — see the BMW diagram below
01 View BMW DiagramSee this part on the official exploded view→This is a genuine BMW starter motor generator (exchange unit), part number 12 31 7 649 392. The number stamped on the part is 12317649392; BMW's catalog files it under the short number 7649392. BMW's catalog calls it “Exch. starter motor generator”. You will find it on our Electrical shelf, under Alternator with motor and mounting.
BMW's catalog records no E36 or E46 it is fitted to; it belongs to other BMW models.
BMW draws it on 2 diagrams, among them Starter motor generator (12_1800) and Starter motor generator (12_2063).
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 7 649 392123176493927649392Technical Bulletins
CN
DE
No fitment data available for this part.
No related or superseding parts.
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.