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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

Expanding nut

BMW Part Number:64 12 1 379 221
64121379221short number 1379221
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One email the moment one is listed — nothing else.

Fits E36 — 316g, 316i, 316i 1.6, 316i 1.9, 318i, 318is, 318tds, 318ti +5 more
Select your vehicle to check fitment

Genuine BMW Part

Photos coming soon — see the BMW diagram below

Expanding nut – BMW diagram09 View BMW DiagramSee this part on the official exploded view

What's Included

Expanding nut — a genuine BMW part, number 64 12 1 379 221. The number stamped on the part is 64121379221; BMW's catalog files it under the short number 1379221. You will find it on our AC & Climate Control shelf, under Other Heater and Air Conditioning parts. It supersedes the older number 1371324, so a part carrying that number is the same part.

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 86 diagrams, among them Emission Control-Air Pump (11_3018) and Expansion Tank/Tubing (17_0206). It also comes in BMW kit Installing Set Catalyzer (1716468).

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 Number64 12 1 379 221
Also written as641213792211379221
QualityGenuine BMW · OEM
CompactM43ManualCH11
SedanM52AutomaticCB85

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.