Charge Air Cooler Expansion Tank Hose, BMW - F87 M2 Competition, S55

This part is listed by BMW as BMW part number 17128091720 (17-12-8-091-720) and is described as the small cooling hose from the charge air cooler to the small expansion tank on F87 M2 Competition and M2 CS Racing models (S55 engine). In various diagrams this is labeled as hose #8. 

This is a Genuine BMW S55 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.