HD High Boost Valve Spring Set 1998.5-2022 Dodge 5.9L/6.7L Cummins XDP thrust plates

thrust plates

Up to five power levels of additional horsepower and torque (depending on vehicle year)

leakage and opening characteristics

0L Power Stroke EGR Cooler

Billet aluminum makes the PPE Air Bleeder Screw a lot stronger and weather-resistant

HD High Boost Valve Spring Set 1998.5-2022 Dodge 5.9L/6.7L Cummins XDP thrust platesControl the valvetrain in your modified 1998. 5 2022 Dodge 5. 9L Cummins with the XDP HD High Boost Valve Spring Set XD390. The XD390 Valve Spring Kit is designed to help eliminate valve float due to elevated cylinder pressures and higher boost levels. Common upgrades like aftermarket tuning and fueling and turbo upgrades can cause valve float that results in severe engine damage. Intake valves can also be blown open from added boost levels and