HD High Boost Valve Spring Set 1998.5-2022 Dodge 5.9L/6.7L Cummins XDP Billet aluminum makes the PPE

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

This is for truck owners with overhead storage unit who want to use that area for something more important than sunglasses and hankies

0L Powerstroke

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

thrust plates

HD High Boost Valve Spring Set 1998.5-2022 Dodge 5.9L/6.7L Cummins XDP Billet aluminum makes the PPEControl 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