This part is listed by BMW as BMW part number 27108681581 (27-10-8-681-581) and is described as Genuine BMW Rear Output Seal Kit for xDrive Transfer Case on F44 2-series, F48/U11 X1, and F39/U10 X2 models.
Replaces obsolete BMW part number 27108654400 (27-10-8-654-400).
BMW Fitments:
2 Series
F44 Gran Coupe (2021+) > 228i xDrive GC
F44 Gran Coupe (2021+) > M235i xDrive GC
X1 Series
F48 X1 (2016-2022) > X1 28i xDrive
X1 Series
U11 X1 (2023+) > X1 xDrive28i B48P (2023+)
U11 X1 (2023+) > X1 xDriveM35i B48R (2023+)
X2 Series
F39 X2 (2018-2023) > X2 xDrive28i (18-23)
X2 Series
U10 X2 (2024+) > X2 xDrive28i B48P (2024+)
U10 X2 (2024+) > X2 xDriveM35i B48R (2024+)