This part is listed by BMW as BMW part number 34112284399 (34 11 2 284 399) and is described as a M12x1.5 hex nut with flange used to mount the brake caliper to the stud on the hub carrier. BMW calls for new nuts any time the caliper is removed. Sold per nut.
This is a Genuine BMW brake caliper nut with a two year warranty. Buying a Genuine part will usually be more expensive than an OEM or aftermarket brand but you are assured that it meets BMW's designs for fitment, performance, and longevity. It will also be the very latest design, incorporating any updates or revisions that an aftermarket brand typically will ignore.
For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.
BMW Fitments:
2 Series
G87 (2023-) > M2 (2023+)
3 Series
G80 (2021-) > M3 (2021-)
G80 (2021-) > M3 Competition RWD (2021-)
G80 (2021-) > M3 xDrive Competition (2021-)
4 Series
G82 / G83 (2021-) > M4 (2021-)
G82 / G83 (2021-) > M4 CSL
G82 / G83 (2021-) > M4 Competition RWD (2021-)
G82 / G83 (2021-) > M4 xDrive Competition (2021-)
5 Series
F10 / F11 (11-16) > M5 (2013-2016)
5 Series
F90 (2018-2023) > M5 (2018-2023)
6 Series
F12 / F13 (12-18) > M6
8 Series
F91 / F92 / F93 (2020+) > M8 / M8 Competition
