It seems to have a large lid with snap clips for the filter? and a screw cap for filling? Don't even know if it's an oil filled unit or not. Just a guess, open it up and let us see inside.
Hopefully the person who put it on there knew what they were doing because the valve cover cap is not a breather type and don't see any slots in cover. So how does your unit breath? Has to be open somewhere. Don't see where in the pics. I'm hoping it's not a mixture of the wrong parts for crank case ventilation.

When Chevy went to center valve cover fill cap and no slots, they had a breather cap. You don't. Maybe this unit takes care of the "in and out" ?


Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn