Coolant Hose (Radiator to Water Pipe) - E85 Z4 2.5i 3.0i (2003-2005)

This water hose carries coolant from the radiator to a water pipe on the 2003-2005 E85 Z4 2.5 and 3.0 with the M54 engine. 

This part is listed by BMW as BMW part number 17127514406 (17-12-7-514-406) and is described as Genuine BMW Coolant Hose (Radiator to Water Pipe).

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.