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XD390 XDP Heavy Duty High Boost Valve Spring Set - Dodge 5.9L/6.7L Cummins 1998.5-2022

SKU: XD390
Mftr. Part#: XD390
The XDP Heavy Duty High Boost Valve Spring Set is designed to help eliminate valve float due to elevated cylinder pressure in your 1998.5-2022 5.9L/6.7L Cummins truck.

PRODUCT SPECS (click to expand)

Attribute nameAttribute value
Truck Type/ModelDodge
Product TypeValve Springs
BrandXDP (Xtreme Diesel Performance)


Control the valvetrain in your truck with the XDP Valve Spring Set. Common upgrades like aftermarket tuning, fueling and turbo upgrades can cause valve float that can result in severe engine damage. The intake valve in your truck could also be blown open from added boost levels and exhaust drive pressure which allows reversion. Reversion is when exhaust gasses enter the cylinder on the intake stroke, another condition that can hurt your power potential. These springs come ready for install using your factory retainers and locks.


  • Performance valve set
  • Essential for elevated boost levels (+50lbs)
  • Installed height: 1.340"
  • Installed pressure: 108lbs
  • 192lbs @ .920"
  • Coil bind: .800"