Genuine BMW Part
Photos coming soon — see the BMW diagram below
09 View BMW DiagramSee this part on the official exploded view→This is a genuine BMW rotor, part number 12 31 1 738 107. The number stamped on the part is 12311738107; BMW's catalog files it under the short number 1738107. You will find it on our Electrical shelf, under Alternator with motor and mounting.
It fits the E36 sedan and coupe (320i and 325i, 1992–1995), with the M50 engine.
BMW draws it on 4 diagrams, among them Alternator Parts 140a (12_0443) and Alternator Parts 140a (12_0450). It weighs about 2.8 kg (6.2 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
Details
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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.