Crankcase Vent Valve/Oil Separator, Rein - E39 M5, Z8 (Bank 1)

Crankcase Vent Valve/Oil Separator for bank 1 on S62 engine found in E39 M5 and Z8 Roadster.

This part is listed by BMW as BMW part number 11151406788 (11 15 1 406 788) and is described as the oil separator for cylinders 1-4 (bank 1) in E39 M5, and Z8 Roadster. This is a cyclonic oil separator - taking oil vapor from the bank 1 valve cover, swirling it in a cyclone to separate oil liquid and vapors. Oil drains back to the dipstick and the vapor goes to the intake air plenum.

This is a E39 M5 crankcase vent 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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