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Genuine BMW
BMW Part Number12 31 7 509 111

Compact generator (exchange unit)

100A · one of 7 types

Out of stock

One email when it is listed. Nothing else.

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WARNING: Cancer and Reproductive Harm from exposure to lead — www.P65Warnings.ca.gov P65Warnings.ca.gov

Inspected and graded before it's listed · 30-day returns

Make sure this fits your car

Fits E36 316i 1.9 · E46 316i, 316i 1.6, 316i 1.9, 318i 1997–2001 — M43 engine

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CoupeM43AllBL51

Other types · 7 in all

Compact generator (exchange unit) – BMW diagram

Callout 01 on BMW’s drawing “COMPACT ALTERNATOR”. Open the drawing →

Also shown on COMPACT ALTERNATOR.

Genuine BMW part 12 31 7 509 111: Compact generator (exchange unit). You will find it under Electrical (Alternator with motor and mounting). It supersedes the older numbers 12 31 1 435 939 and 12 31 7 509 102, so a part carrying any of them is the same part.

Fits E36 316i 1.9 (1999), compact, with the M43 engine. Also fits E46 316i, 316i 1.6, 316i 1.9 and 318i (1997–2001), sedan, coupe and touring, with the M43 engine.

BMW draws it on 2 drawings, among them two Compact Alternator drawings. It weighs about 5.9 kg (13 lb).

Out of stock. Request it and we will notify you when it is in stock.

Details

EnginesM43
Weight5.94 kg

Used parts are inspected and graded: Good (minimal wear), Fair (normal wear) or Acceptable (visible wear). All fully working. Returns: 30 days if a part arrives damaged or not as described.

BMW has renumbered this part. All of these numbers are the same part.

  • 12 31 7 509 111currentOut of stock
  • 12 31 1 435 938replaced by 12 31 7 509 111
  • 12 31 1 435 939replaced by 12 31 7 509 111
  • 12 31 7 509 102replaced by 12 31 7 509 111

The other parts on BMW’s drawing “COMPACT ALTERNATOR”. Open the drawing →

#PartIn stockAction
01Compact generator (exchange unit) · this part6 numbers at this calloutOut of stock
CoupeM43AllBL51

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InElectricalAlternator with motor and mounting