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

Voltage regulator

BMW Part Number:12 31 8 509 988
12318509988short number 8509988
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One email the moment one is listed — nothing else.

Genuine BMW Part

Photos coming soon — see the BMW diagram below

Voltage regulator – BMW diagram02 View BMW DiagramSee this part on the official exploded view

Voltage regulator — a genuine BMW part, number 12 31 8 509 988. The number stamped on the part is 12318509988; BMW's catalog files it under the short number 8509988. You will find it on our Electrical shelf, under Alternator with motor and mounting. It supersedes the older number 2246071, so a part carrying that number is the same part.

It fits the E36 sedan, touring and compact (318tds, 1994–1995), with the M41 engine.

BMW draws it on the Alternator Parts 95a (12_0615) diagram. It weighs about 220 g (0.5 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 8 509 988
Also written as123185099888509988
QualityGenuine BMW · OEM

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.