Self-locking hex nut
07 12 9 946 40107129946401·short number 9946401Genuine BMW Part
Photos coming soon — see the BMW diagram below
12 View BMW DiagramSee this part on the official exploded view→Self-locking hex nut — a genuine BMW part, number 07 12 9 946 401. The number stamped on the part is 07129946401; BMW's catalog files it under the short number 9946401. You will find it on our Supplies & Hardware shelf, under Group 12. BMW has since replaced it with 9904874.
It fits every E36 body style (318i, 318ti, 320i, 323i and 325i, 1992–1999), with the M40, M42, M43, M44, M50 or M52 engines — and the European-market versions.
BMW draws it on 14 diagrams, among them Alternatormounting Parts (12_0220) and Alternatormounting Parts (12_0221). It weighs about 10 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
07 12 9 946 401071299464019946401ALTERNATORMOUNTING PARTS
Diagram 12_0220
ALTERNATORMOUNTING PARTS
Diagram 12_0221
ALTERNATORMOUNTING PARTS
Diagram 12_0222
ALTERNATORMOUNTING PARTS
Diagram 12_1502
EXHAUST ASSY WITHOUT CATALYST
Diagram 18_0155
EXHAUST ASSY WITHOUT CATALYST
Diagram 18_0197
Exhaust system with catalytic converter
Diagram 18_0198
DRIVE SHAFT-CEN.BEARING-CONST.VEL.JOINT
Diagram 26_0064
DRIVE SHAFT-CEN.BEARING-CONST.VEL.JOINT
Diagram 26_0108
DRIVE SHAFT-CENT.BEARING-UNIVERSAL JOINT
Diagram 26_0286
AHK/TUBING CENTER/ATTACHING PARTS
Diagram 33_0428
Support, front
Diagram 51_2020
Spare-wheel lift/multifunctional pan
Diagram 51_3965
Battery cable holder/mounting parts
Diagram 61_1321
Supersession
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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.