This part is listed by BMW as BMW part number 33316877263 (33 31 6 877 263) and is described as the fluid-filled mount (hydrobearing) fits into the rear subframe, and supports the mounting point on the differential rear cover on G20 3-series, G22/G23/G26 4-series, and G29 Z4 models.
The bushing is filled with a vibration-absorbing fluid that does a great job of isolating bumps and rough roads, until the fluid leaks or evaporates. Worn bushings will affect the ride, handling, and steering of the car and can also cause clunking noises and vibrations. To restore factory steering precision and taught handling, replace the bushing or complete control arm at the first sign of wear.
This is a Genuine BMW diff mount 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+) > 230i xDrive
G42 / G43 (2022+) > M240i
G42 / G43 (2022+) > M240i xDrive
3 Series
G20 (2019+) > 330e
G20 (2019+) > 330e xDrive
G20 (2019+) > 330i B46D (2019-2024)
G20 (2019+) > 330i xDrive B46D (2019-2024)
G20 (2019+) > M340i B58D (2019-2024)
G20 (2019+) > M340i xDrive B58D (2019-2024)
4 Series
G22 / G23 (2021+) > 430i B46D (2021-2024)
G22 / G23 (2021+) > 430i xDrive B46D (2021-2024)
G22 / G23 (2021+) > M440i B58D (2021-2024)
G22 / G23 (2021+) > M440i xDrive B58D (2021-2024)
4 Series
G26 (2022+) > M440i xDrive Gran Coupe B58D (2022-2024)
Z Series
G29 Z4 (2019-2026) > Z4 sDrive30i