Abstract: An assembly for mounting an oil mist separator to a valve cover of an engine is provided. The assembly includes a cylindrical housing having two portions and apertures to couple the cylindrical housing on the valve cover. Each portion includes a side wall, a top surface extending from a top edge of the sidewall and a bottom surface laterally spaced apart from the top surface. The bottom surface extends perpendicularly from a bottom edge of the sidewall. Each portion also includes a flange member extending from each side edge of the sidewall and fastening apertures to couple the two portion of the cylindrical housing with each other. The cylindrical housing defines a central cavity configured to receive the oil mist separator therein and to encapsulate the oil mist separator therein. Each portion further includes dampening members configured to provide mechanical support to the oil mist separator.