Expansion Tank Vent Hose, Rein - F22 230i/M240i, F30 330i/340i, F32 430i/440i, B46, B58

This part is listed by BMW as BMW part number 17128620944 (17 12 8 620 944) and is described as the vent hose from the upper radiator hose to the expansion tank on F22 230i/M240i, F30 330i/340i, F32 430i/440i models.

This is a B46 / B58 cooling hose manufactured by Rein Automotive (CRP) - a front-line supplier of original equipment, private label, and in-house engineered replacement parts. Rein replacement products meet or exceed all of BMW's original design, fitment, and performance requirements and they carry out testing with ISO and German TUV for quality control. Rein parts are the best alternative to more expensive Original BMW parts because they are virtually identical without the inflated price tag. This part has a two year warranty.

Fitment for the models below includes M Sport models with two auxiliary radiators. For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.