✨ Get 20% OFF your first order. ✨

Your Shopping Bag

Your bag is empty

Subtotal $0.00
Shipping Calculated at checkout
Continue Shopping

Last Chance Xdp Heavy Duty High Boost Valve Spring Set Xd390 Holiday Cheer Edition [Zy8Dmbc4]

$57.99 $185.99 -69%

Last Chance Xdp Heavy Duty High Boost Valve Spring Set Xd390 Holiday Cheer Edition [Zy8Dmbc4] The Last Chance Xdp Heavy Duty High Boost Valve Spring Set Xd390 Holiday Cheer Edition [Zy8Dmbc4] is a game-changer for modified 1998.5-2022 Dodge 5.9L/6.7L Cummins engines. Engineered to withstand elevated cylinder pressures and higher boost lev

Secure Shopping

100% Safe Guarantee

Free Shipping

On orders over $30

Money-Back

30-Day Guarantee

Last Chance Xdp Heavy Duty High Boost Valve Spring Set Xd390 Holiday Cheer Edition [Zy8Dmbc4]

The Last Chance Xdp Heavy Duty High Boost Valve Spring Set Xd390 Holiday Cheer Edition [Zy8Dmbc4] is a game-changer for modified 1998.5-2022 Dodge 5.9L/6.7L Cummins engines. Engineered to withstand elevated cylinder pressures and higher boost levels, this valve spring set is essential for maintaining optimal engine performance. With common upgrades such as aftermarket tuning, fueling, and turbochargers, valve float can become a serious issue. The XD390 kit is designed to eliminate this problem, ensuring your engine operates smoothly and safely.
  • Performance Valve Spring Kit
  • Essential For Elevated Boost Levels (+50 lbs)

Technical Specifications and Features

The XD390 Valve Spring Set is crafted with precision to fit all 1998.5-2002 cylinder heads, regardless of casting inconsistencies. This kit includes all necessary components for installation, using your factory retainers and locks. Key specifications include an installed height of 1.340", installed pressure of 108lbs, and a coil bind of .800". These high-performance springs are designed to handle the demands of aftermarket camshafts, upgraded turbos, and fueling systems.
  • Reduced OD for universal fitment
  • Ready to Install with factory components

Practical Applications and Benefits

The Last Chance Xdp Heavy Duty High Boost Valve Spring Set Xd390 Holiday Cheer Edition [Zy8Dmbc4] is ideal for enthusiasts who demand peak performance from their modified engines. By eliminating valve float and preventing reversion, this kit enhances power potential and protects against severe engine damage. Whether you're running an aftermarket camshaft or upgrading your turbochargers, the XD390 kit ensures your engine operates at its best. With a 2-Year warranty against defects in materials and craftsmanship, you can trust the reliability of this high-quality product.
  • Engineered for Modified Engines
  • Boosts Performance and Durability

What Our Customers Say

December 27, 2025

Absolutely no complaints!

This is a really good tool.

- Janine D..

December 27, 2025

Absolutely no complaints!

This is a very impressive gadget.

- Grace R..

December 27, 2025

Absolutely no complaints!

Excellent, exactly as described.

- Zayden Q..

Write a Review

You Might Also Like

Discover more great products from our collection.

Valebeck Bar Height Bar Stool

Valebeck Bar Height Bar Stool

(991)
$43.99 $140.99 -69%
Plaza Athénée

Plaza Athénée

(201)
$21.99 $70.99 -69%
Custom text: Cuddle Puddle

Custom text: Cuddle Puddle

(637)
$56.99 $182.99 -69%
GRP Stepover Hop up Platform

GRP Stepover Hop up Platform

(582)
$47.99 $153.99 -69%
Cashton Sofa Sleeper

Cashton Sofa Sleeper

(905)
$53.99 $172.99 -69%
The Lamentations of Jeremiah

The Lamentations of Jeremiah

(946)
$80.99 $259.99 -69%

Copyright 2025 © mappa-mercia.org

VISA
PayPal
Stripe
Mastercard
CASH ON DELIVERY