Skip to content
FREE SHIPPING on US orders over $75 (oversize excepted) • Quality used E36 & E46 parts • Every part inspected & graded
3 Series Parts

Generator, water-cooled (exchange unit)

BMW Part Number:12 31 1 705 557
12311705557short number 1705557
♡ Save for later
Out of Stock

One email the moment one is listed — nothing else.

Genuine BMW Part

Photos coming soon

Generator, water-cooled (exchange unit) — a genuine BMW part, number 12 31 1 705 557. The number stamped on the part is 12311705557; BMW's catalog files it under the short number 1705557. BMW's catalog calls it “EXCH generator, water-cooled”. You will find it on our Electrical shelf, under Alternator with motor and mounting. BMW has since replaced it with 1705483.

BMW's catalog records no E36 or E46 it is fitted to; it belongs to other BMW models.

It weighs about 9.4 kg (21 lb).

We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.

Details

BMW Part Number12 31 1 705 557
Also written as123117055571705557
QualityGenuine BMW · OEM

No fitment data available for this part.

This part isn't shown in any diagrams.

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.