This part is listed by BMW as BMW part number 31216891170 (31 21 6 891 170) and is described as a Pivot Bearing for the right front of G42 230i/M240i, G20 330i/M340i and G22 430i/M440i RWD models. This is the main hub/spindle/upright where the control arms, strut, and brakes attach to. BMW offers this version with a slight increase in negative camber to help fix crash damage. But if you're building a G20/G22 track car this is an easy way to increase negative camber at the wheel hub. Of the two "camber correction" hubs this has the most negative camber. BMW part #31216877144 is not as much. As this is a new part for a new vehicle we do not have any information on how much more negative camber is achieved.
When increasing negative camber the hub the top edge of the tire and wheel will tilt more towards the strut. Tire>strut clearance will be reduced and a wheel spacer may be required depending on your wheel offset, tire choice, and strut design.
This is a Genuine BMW pivot bearing 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
G42 / G43 (2022+) > 230i
G42 / G43 (2022+) > M240i
3 Series
G20 (2019+) > 330i
G20 (2019+) > M340i
4 Series
G22 / G23 (2021+) > 430i
G22 / G23 (2021+) > M440i