Belt pulley, crankshaft
12 31 1 341 91212311341912·short number 1341912Genuine BMW Part
Photos coming soon — see the BMW diagram below
05 View BMW DiagramSee this part on the official exploded view→What's Included
Sold as part of these kits
Genuine BMW part 12 31 1 341 912: Belt pulley, crankshaft. The number stamped on the part is 12311341912; BMW's catalog files it under the short number 1341912. You will find it on our Electrical shelf, under Alternator with motor and mounting. It supersedes the older number 1342085, so a part carrying that number is the same part.
BMW's catalog records no E36 or E46 it is fitted to; it belongs to other BMW models.
BMW draws it on 3 diagrams, among them Ignition System/Trigger Contact (12_1013) and Alternator 50A Bosch (12_1472). It weighs about 258 g (0.6 lb). It also comes in BMW kit Set of Pulleys with Ribbed V-Belts (1342086).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
Details
12 31 1 341 912123113419121341912No fitment data available for this part.
Supersession
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.