SKU: 27666882547

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

Sale price$179.97 Regular price$199.97
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Description

HD High Boost Valve Spring Set 1998.5-2022 Dodge 5.9L/6.7L Cummins XDPControl 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

Control 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 exhaust drive pressure which allows reversion. Reversion is when exhaust gasses enter cylinder on the intake stroke, another condition that can hurt your power potential.

The XD390 Valve Spring Set is ideal for the enthusiast that is running an aftermarket camshaft, upgraded or compound turbochargers, and fueling upgrades. These springs are ready to install using your factory retainers and locks. The XD390 Valve Springs have a reduced OD and will fit all 1998.5-2002 cylinder heads regardless of the casting inconsistencies.
Features:

  • Performance Valve Spring Kit
  • Essential For Elevated Boost Levels (50 and up lbs)

Specifications:

  • Installed Height: 1.340 inch
  • Installed Pressure: 108lbs
  • 192lbs at .920 inch
  • Coil Bind: .800 inch
Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 27666882547

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Lady B
Bozeman, US
★★★★★ 5
The Illustrations are Sweet, Storyline… Great!
Format: Board book
This book is sturdy and has a wonderful message. My grandchildren love it! If you are the one who presents 2 children in a classroom or other setting, most children will really love this book. The durability of the book is great. The illustrations are sweet. The review platform does not allow for me to enter an age span. It does not allow for me to enter multiple ages. It seems to force you to Select one age. I would say that having raised children of my own, I would start reading this book by one years old, but the average child I guess would best benefit with between ages like two and four. The book could be read up to people who are like six years old if they just love a sweet bedtime story.
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Reviewed in the United States on April 28, 2026
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Vickie D. Roderick
Lexington, US
★★★★★ 5
Ms V
Format: Board book
Awesome book for my nephew. The book is good for a new reader to learn words from.
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Reviewed in the United States on May 29, 2026
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Gin
San Leandro, US
★★★★★ 5
Great quality
Format: Board book
Sweet little book . Color is vibrant and quality is extremely nice.
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Reviewed in the United States on May 29, 2026
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Amazon Customer
Port Orchard, US
★★★★★ 5
A great tool for learning at home
Format: Paperback
This was a wonderful book to help get my little one ready for 1st grade. The activities were grade appropriate, the colors and pictures were lovely and it was easy to jump around so the book didn't become too much of a chore. It had definitely made a difference in how prepared my kid was going from the hecticness of kinder into a proper classroom setting.
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Reviewed in the United States on November 30, 2025
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Angie Zamora
New York, US
★★★★★ 5
Good Book
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Good book to keep your kids busy
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Reviewed in the United States on March 11, 2026

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