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XD313 XDP Performance Valve Spring & Retainer Kit - Dodge 5.9L/6.7L Cummins 1998.5-2022

SKU: XD313
Mftr. Part#: XD313
UPC: 856217008601
The XDP Performance Valve Spring & Retainer Kit features a conical design that offers improved valve control over a basic straight spring, it can be used it a wide range of applications making it the perfect option for your 1998.5-2022 5.9L/6.7L Cummins truck.

PRODUCT DETAILS (click to expand)

Mftr. Part#XD313

PRODUCT SPECS (click to expand)

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


The conical design of the XDP Performance Valve Spring & Retainer Kit offers improved valve control over a basic straight spring. The conical shape allows for a smaller and lighter weight spring retainer that is more robust due to the reduction in size. Unlike other aftermarket valve springs this valve spring kit can be used on a wide range of applications from stock to race-built engines making it the perfect "one and done" upgrade that lets you upgrade in the future to support more power. Each spring is subjected to a stress relief process and is computer load mapped to give a superior-quality product with long term resilience. Tested with 1 lb of seat pressure this valve spring & retainer set comes complete with locks, retainers, springs and is supported with 1 year of warranty.


  • Conical spring design
  • 100lb Seat pressure
  • Supports up to 2,000HP
  • Essential for elevated boost levels
  • Complete set of springs, locks & retainers

Application notes

  • These valve springs require a spring pocket size of 1.190" or larger
  • In some rare instances the spring pocket may be too small due to OEM machining inconsistencies on 1998.5-2002 models
  • If needed any competent machine shop will be able to cut a larger spring pocket