Does anyone know of a valve cover oil breather that is waterproof and will fit our trucks? I'm looking for an oil breather that is able to vent out crankcase fumes but not let water in.

 

Just run the line up high. Higher than your anticipated water level.

 

fishEH, where would you recommend to route it? I guess trying to use a metal tube connected to the valve cover and get it as close to the bonnet as possible or possibly running the valve cover tube to a catch can and having the catch can vent into the atmosphere. No emissions tests in Florida

 

Maybe something like this but mounted higher. What do you think would be better?