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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

Idler

BMW Part Number:12 31 1 273 639
12311273639short number 1273639
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One email the moment one is listed — nothing else.

Genuine BMW Part

Photos coming soon — see the BMW diagram below

Idler – BMW diagram12 View BMW DiagramSee this part on the official exploded view

Idler — a genuine BMW part, number 12 31 1 273 639. The number stamped on the part is 12311273639; BMW's catalog files it under the short number 1273639. You will find it on our Electrical shelf, under Alternator with motor and mounting. BMW has since replaced it with 7677914.

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

BMW draws it on 76 diagrams, among them Emission Control-Air Pump (11_0984) and Emission Control-Air Pump (11_1270). It weighs about 14 g (under 0.1 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 1 273 639
Also written as123112736391273639
QualityGenuine BMW · OEM

No fitment data available for this part.

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.