This part is listed by BMW as BMW part number 17228570449 (17 22 8 570 449) and is described as the set of inlet and outlet transmission cooler hoses for the automatic transmission cooler on F22 230i/M240i, F30 330i/340i, F32 430i/440i.
These are complete lines with new o-ring seals. Oil leaks from the transmission or heat exchanger cooler may come down to a crushed or worn out o-ring but the lines themselves, and their crimped connections, may also be at fault.
This is a Genuine BMW transmission cooler hose 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
F22 / F23 (2014-2021) > 230i
F22 / F23 (2014-2021) > 230i xDrive
F22 / F23 (2014-2021) > M240i
F22 / F23 (2014-2021) > M240i xDrive
3 Series
F30 / F31 / F34 (2012-2019) > 330i
F30 / F31 / F34 (2012-2019) > 330i xDrive
F30 / F31 / F34 (2012-2019) > 340i
F30 / F31 / F34 (2012-2019) > 340i xDrive
4 Series
F32 / F33 / F36 (14-20) > 430i
F32 / F33 / F36 (14-20) > 430i xDrive
F32 / F33 / F36 (14-20) > 440i
F32 / F33 / F36 (14-20) > 440i xDrive