This part is listed by BMW as BMW part number 11618689501 (11 61 8 689 501) and is described as the adapter pipe for the inlet on the B58D (B58TU) turbocharger on G42 M240i, G20 M340i, G22/G23 M440i, X3/X4 M40i (2020+), and G29 Z4 M40i. It's also used on 2023+ A90/GR Supra LCI. BMW also refers to it as a heated tank vent line (probably mis-translated text from German).
This is a Genuine BMW B58 turbo inlet 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+) > M240i
G42 / G43 (2022+) > M240i xDrive
3 Series
G20 (2019+) > M340i
G20 (2019+) > M340i xDrive
4 Series
G22 / G23 (2021+) > M440i
G22 / G23 (2021+) > M440i xDrive
4 Series
G26 (2022+) > M440i xDrive Gran Coupe
X3 Series
G01 X3 (2018+) > X3 M40i B58D (2020+)
X4 Series
G02 X4 (2019+) > X4 M40i B58D (2020+)
Z Series
G29 Z4 (2019+) > Z4 M40i