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USD 487.95

XDP Performance Valve Springs & Retainer Set XD313

PART# XD313 | SKU XD313
★★★★★ ★★★★★ 5.0 (3 Reviews)

Vehicle Fitment:
1998.5-2024 Dodge Ram 5.9L/6.7L Diesel | See full application list below
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Control the valvetrain in your truck with the XDP Performance Valve Springs & Retainer Set XD313. Valve springs are an essential upgrade that are often overlooked in many performance builds. The factory valve springs in your engine are not intended to handle the increased engine RPM and elevated boost levels that are typical in modified applications. Even common upgrades like an aftermarket turbocharger and performance tuning can cause valve float that may result in serious engine damage. In addition, your valves can be blown open by boost and drive pressure causing reversion. Reversion is when exhaust gasses flow backwards and enter the cylinder on the intake stroke, hurting your engine performance. This is why upgraded valve springs are a must-have on modified engines! 

The XDP Performance Valve Springs & Retainer Set XD313 feature a conical design that provides more valve control than a standard straight spring. The conical shape allows for a smaller and lighter spring retainer that is also stronger due to size reduction. Unlike other valve springs on the market, the XD313 Valve Spring Kit can be used on a wide range of trucks, from stock all the way up to competition builds making 2,000 HP. This makes them a perfect choice for a "one-and-done" upgrade that lets you modify your engine to support more power down the road. Each spring is computer load mapped and then matched within 1 lb of seat pressure followed by a stress relief process to ensure quality and long-term reliability. Each set comes complete with springs, locks, and retainers for a straightforward installation.

  • 100 Lb. Seat Pressure
  • Conical Spring Design 
  • Performance Valve Spring Kit
  • Supports Up To 2,000 Horsepower 
  • Essential For Elevated Boost Levels 
  • Complete Set (Springs, Locks & Retainers)
1998.5-2002 24V Application Note:
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 only on 1998.5-2002 models. 
If needed, any competent machine shop will be able to cut a larger spring pocket. 
Shipping Restrictions Apply shipping restriction icon This product can not be shipped to these states/provinces: CA
Disclaimer: XDP is in no way affiliated with Cummins or any of its subsidiaries or related companies, and that Cummins has not authorized the sale of any of XDP's parts, and has not tested or approved any of XDP’s parts for use in genuine Cummins brand products.


  • MPN XD313
  • SKU XD313
  • GTIN 856217008601
  • ID 34851
  • Manufacturer Name XDP
  • Shipping Weight 3.00 lb.
  • Shipping Length 13 in.
  • Shipping Width 4 in.
  • Shipping Height 4 in.
  • Fuel Type Diesel
  • Warranty Info 2 Year / Unlimited Mileage
  • Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm -
  • Internal L12R1


★★★★★ ★★★★★
5.0/5 Stars out of 3 Reviews
Verified Buyer
Hight quality products
I received good information from tech support before ordering which led to the purchase of the springs
Verified Buyer
24v performance spring kit
This product fit excellent, went in with no problems. Came with springs, locks, and retainers. XDP always gets products out fast. Order #1923923.
Verified Buyer
Good Upgrade Spring Kit
I looked over the internet to find an upgrade spring kit with caps and keepers. Most kits don't include them. For the price point, these are the best value. I installed them today. The packaging was great. The fit and finish are excellent. As usual, XDP got them to me Quickly. Order #1862394

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Questions and Answers

What pressure are the XD313 valve springs. Hamilton springs are 103# and was wondering how these compare. Can the stock rocker arms support the XD313.
View Staff Answer 
The XD313 features 100 lbs of seat pressure and are certainly comparable to the Hamilton springs. The factory rocker arms will work fine with these springs.
Will stock push rods work with these?
View Staff Answer 
While the XDP 24V Performance Valve Springs & Retainer Kit XD313 will work with the stock pushrods, it is a good idea to upgrade your pushrods since excessive flexing from your stock pushrods can cause power loss, and lead to other valvetrain issues and component failures. See Related Items.

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