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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

Hex nut

BMW Part Number:64 53 8 391 405
64538391405short number 8391405
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One email the moment one is listed — nothing else.

Fits E36 — 318tds, 325td, 325tds
Select your vehicle to check fitment

Genuine BMW Part

Photos coming soon — see the BMW diagram below

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

Genuine BMW part 64 53 8 391 405: Hex nut. The number stamped on the part is 64538391405; BMW's catalog files it under the short number 8391405. You will find it on our AC & Climate Control shelf, under Other Heater and Air Conditioning parts. It supersedes the older number 1382003, so a part carrying that number is the same part.

It fits the E36 sedan and touring (318tds, 325td and 325tds, 1991–1996), with the M41 or M51 engines.

BMW draws it on 2 diagrams, among them Rear silencer (18_0233) and Rear silencer (18_0260). It weighs about 5 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

BMW Part Number64 53 8 391 405
Also written as645383914058391405
QualityGenuine BMW · OEM

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.