Transmission Heat Exchanger Cooling Hose, BMW - F22 230i/M240i, F30 330i/340i, F32 430i/440i, B46, B58

This part is listed by BMW as BMW part number 17128662837 (17 12 8 662 837) and is described as the coolant hose from the lower main radiator hose towards the transmission oil cooler. This hose used to be all one piece (BMW part #17128616559) but BMW decided to split it into two sections. This is the lower section. It's #11 in ETK/RealOEM parts diagrams.

This is a Genuine BMW B46 / B58 cooling 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