2003-2007 Dodge 5.9L Cummins Fuel plug
Solution for a common failure for Cummins 5.9L fuel pressure relief valve. The original design 5.9L relief valves are a simple spring that relieves pressure as it exceeds a predetermined value around 27,000 psi. Unfortunately, over time the spring fatigues and does not have the ability to maintain even stock pressures.
- This Rail Plug eliminates the weak spring issue to maintain fuel pressure.
- easy to install into the factory rail and eliminates the troublesome pressure relief valve to ensure you're getting the commanded rail pressure of your CP3 all the way to your injectors.