Skip to content
FREE SHIPPING on US orders over $75 (oversize excepted) • Quality used E36 & E46 parts • Every part inspected & graded
Genuine BMW
BMW Part Number12 31 7 677 914

Idler

Out of stock

One email when it is listed. Nothing else.

Free US shipping on orders over $75.00 · oversize quoted. Oversize items ship at a flat $49.99 each — free shipping does not cover them.

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, 318i 1990–94 — M40, M42 engines

Select your vehicle to check fitment
See all 26 fitting cars
Idler – BMW diagram

Callout 10 on BMW’s drawing “ALTERNATORMOUNTING PARTS”. Open the drawing →

Also shown on ALTERNATORMOUNTING PARTS, HYDRO STEERING-VANE PUMP/MOUNTING.

Idler — a genuine BMW part, number 12 31 7 677 914. You will find it under Electrical (Alternator with motor and mounting). It supersedes the older number 12 31 1 273 639, so a part carrying that number is the same part.

Fits E36 318i (1992–1999), sedan and coupe, with the M40 or M42 engines.

BMW draws it on 112 drawings, among them two Alternatormounting Parts drawings. It weighs about 14 g (under 0.1 lb).

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

Details

EnginesM40, M42
Weight0.01 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 7 677 914currentOut of stock
  • 12 31 1 273 639replaced by 12 31 7 677 914

The other parts on BMW’s drawing “ALTERNATORMOUNTING PARTS”. Open the drawing →

#PartIn stockAction
--Bush2 numbers at this calloutOut of stockRequest
01Supporting bracketOut of stockRequest
02BushOut of stockRequest
03BushOut of stockRequest
04Hex Bolt with washerOut of stockRequest
05Hex Bolt with washerOut of stockRequest
06Hex BoltOut of stockRequest
07Self-locking hex nutOut of stockRequest
08Adjusting barOut of stockRequest
09Hex Bolt with washerOut of stockRequest
10Idler · this partOut of stock
11Saucer-head screwOut of stockRequest
12Hex nut2 numbers at this calloutOut of stockRequest

Reviews

No reviews yet.

InElectricalAlternator with motor and mounting