This part is listed by BMW as BMW part number 34336851090 (34-33-6-851-090) and is described as a "Lock" by BMW. It's the spin-on cap for the brake fluid reservoir on F22, F3X, F30, F31, F32, F33, F34, F36, F8X, F80, F82, F83, G42, G20, G22, G23, F48, F39, G29 models.
This is a Genuine BMW cap 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
F22 / F23 (2014-2021) > 228i
F22 / F23 (2014-2021) > 228i xDrive
F22 / F23 (2014-2021) > 230i
F22 / F23 (2014-2021) > 230i xDrive
F22 / F23 (2014-2021) > M235i
F22 / F23 (2014-2021) > M235i xDrive
F22 / F23 (2014-2021) > M240i
F22 / F23 (2014-2021) > M240i xDrive
2 Series
F87 (2016-2021) > M2 Competition S55 (2019+)
F87 (2016-2021) > M2 N55 (2016-2018)
2 Series
G42 / G43 (2022+) > 230i
G42 / G43 (2022+) > 230i xDrive
G42 / G43 (2022+) > M240i
G42 / G43 (2022+) > M240i xDrive
3 Series
F30 / F31 / F34 (2012-2019) > 320i
F30 / F31 / F34 (2012-2019) > 320i xDrive
F30 / F31 / F34 (2012-2019) > 328d
F30 / F31 / F34 (2012-2019) > 328d xDrive
F30 / F31 / F34 (2012-2019) > 328i
F30 / F31 / F34 (2012-2019) > 328i xDrive
F30 / F31 / F34 (2012-2019) > 330i
F30 / F31 / F34 (2012-2019) > 330i xDrive
F30 / F31 / F34 (2012-2019) > 335i
F30 / F31 / F34 (2012-2019) > 335i xDrive
F30 / F31 / F34 (2012-2019) > 340i
F30 / F31 / F34 (2012-2019) > 340i xDrive
3 Series
F80 (2015-2018) > M3 (2015-2018)
3 Series
G20 (2019+) > 330i
G20 (2019+) > 330i xDrive
G20 (2019+) > M340i
G20 (2019+) > M340i xDrive
4 Series
F32 / F33 / F36 (14-20) > 428i
F32 / F33 / F36 (14-20) > 428i xDrive
F32 / F33 / F36 (14-20) > 430i
F32 / F33 / F36 (14-20) > 430i xDrive
F32 / F33 / F36 (14-20) > 435i
F32 / F33 / F36 (14-20) > 435i xDrive
F32 / F33 / F36 (14-20) > 440i
F32 / F33 / F36 (14-20) > 440i xDrive
4 Series
F82 / F83 (2015-2020) > M4 (2015-2020)
F82 / F83 (2015-2020) > M4 GTS
4 Series
G22 / G23 (2021+) > 430i
G22 / G23 (2021+) > 430i xDrive
G22 / G23 (2021+) > M440i
G22 / G23 (2021+) > M440i xDrive
4 Series
G26 (2022+) > M440i xDrive Gran Coupe
X1 Series
F48 X1 (2016-2023) > X1 28i
F48 X1 (2016-2023) > X1 28i xDrive
X2 Series
F39 X2 (2018-2023) > X2 M35i (18-23)
F39 X2 (2018-2023) > X2 sDrive28i FWD (18-23)
F39 X2 (2018-2023) > X2 xDrive28i (18-23)
Z Series
G29 Z4 (2019+) > Z4 M40i
G29 Z4 (2019+) > Z4 sDrive30i
