This part is listed by BMW as BMW part number 17127535536 (17-12-7-535-536) and is described as Genuine BMW Coolant Hose for Expansion Tank on G01 X3 30i (2019+) and G02 X4 30i (2019+).
For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.
BMW Fitments:
X3 Series
G01 X3 (2018+) > X3 xDrive30i
X4 Series
G02 X4 (2019+) > X4 xDrive30i