This is the lower coolant hose with 3 connectors for N20/N26 engines with automatic transmission in the F22 228iX, F30 320iX/328iX, and F32 428iX. This hose runs from the lower thermostat hose to the transmission heat exchanger, and to the heater core.
This hose fits models with the automatic transmission but not with Sport or M Sport packages.
This is a Genuine BMW coolant 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.
BMW Fitments:
2 Series
F22 / F23 (2014-2021) > 228i xDrive
3 Series
F30 / F31 / F34 (2012-2019) > 320i xDrive
F30 / F31 / F34 (2012-2019) > 328i xDrive
4 Series
F32 / F33 / F36 (14-20) > 428i xDrive