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Power Driven Dual Valve Cover Breather — 1989–1998 5.9L 12v Cummins

On a high-mileage or modified 12v Cummins, blowby is a fact of life. As combustion gases slip past the piston rings, they pressurize the crankcase and push oil-laden air out through any available path — typically the valve cover, soaking your intake and engine bay in oil mist. The stock breather setup vents from a low point on the engine, which means oil exits first. The Power Driven Dual Valve Cover Breather vents from the highest point on the engine, so air escapes before oil does — significantly reducing oil loss and keeping your engine bay cleaner.

This is a Power Driven Diesel exclusive kit built with genuine Case IH parts. It allows you to attach a hose to the valve cover for controlled crankcase pressure relief — route it to a catch can, filter, or vent to atmosphere depending on your setup.