Expansion Tank Vent Hose, Rein - F22 230i, F30 330i, F32 430i, B46

This part is listed by BMW as BMW part number 17129845173 (17 12 9 845 173) and is described as the expansion tank vent hose for F22 230i, F30 330i, F32 430i models with the B46 engine. This runs from the cylinder head to the expansion tank.

This is a B46 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.

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