Upper Radiator Hose, BMW - E82/E88 135i, E9X 335i, E84 X1 35i

This part is listed by BMW as BMW part number 17127540127 (17-12-7-540-127) and is described as Genuine BMW Upper Radiator Hose for E82/E88 135i, 135is, 1M (2008-2013), E9X 335i. 335is (2007-2013), and E84 X1 35i (2013-2015).

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.