Lower Aux/Main Radiator Hose, BMW - F30 340i, F33 440i, F36 440i, B58

This part is listed by BMW as BMW part number 17128616552 (17 12 8 616 552) and is described as the coolant hose from the radiators to the coolant inlet pipe on the front of the engine. This hose runs from the lower point on the main radiator and the upper connector on the right side auxiliary radiator. This is only for cars that have one auxiliary radiator (on the right side).

Specific fitment notes:
2016 F32 440i coupe
2016 F33 440i convertible
2016 F36 440i GranCoupe
pre-3/2016 340i only with M Sport and automatic transmission

This is a Genuine BMW 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.