The BD-Power 1050070 Fuel Plug for your 03-07 Dodge 5.9L Cummins is designed to block-off your factory pressure relief valve found on your 5.9L Cummins. The BD-Power Fuel Plug will allow you to maintain consistent rail pressure and is especially beneficial to higher horsepower trucks.
Improves Engine Starting
Easily Replaces Stock Valve
Seals In 30,000 PSI Rail Pressure