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XDP Xtreme Diesel Performance

XDP 24V Performance Valve Springs & Retainer Kit 98.5-18 Dodge 5.9L/6.7L Cummins XD313

4.7 store rating · 582 reviews
SKU: XD313

Fits 1998.5–2018 Dodge Ram 2500/3500 · 5.9L 24V Cummins / 6.7L Cummins

Fitment
$503.95
Ships in 1–2 business days.
  • Authorized dealerGenuine XDP Xtreme Diesel Performance parts, sourced direct
  • 30-day returnsSee the return policy
  • Diesel techs on the line908-223-9744, call or text
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This product cannot be shipped to these states/provinces: CA

Control the valvetrain in your 1998.5-2022 Dodge 5.9L and 6.7L Cummins with the XDP 24V Performance Valve Springs and Retainer Kit 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 XD313 Valve Springs 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, retainers, and is backed by XDP's 1 year unlimited mileage warranty.

Features:

  • 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 and Retainers)

1998.5-2002 24V Application Note:
These valve springs require a spring pocket size of 1.190 Inch 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.

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Questions, answered straight.

If it is not here, call or text the counter. Real people, real answers.

Fitment

  • Will this fit my truck?

    The Fits section at the top of the page lists the manufacturer's applications for this exact part. If your year, make and model is not there, or you are not sure, text us a photo of what you are replacing with your year and engine and we will confirm it before you order.

  • What if I order the wrong part?

    Call or text us before it ships and we will swap it. After delivery you have 30 days to return it in new, uninstalled condition. The return policy has the restocking details.

Shipping

  • When will it ship?

    In-stock parts usually ship within 1 to 2 business days from warehouses across the USA. The stock line under the options tells you the status of the part you are looking at. Large items ship LTL freight and we call to schedule delivery.

  • Why did I only get part of my order?

    We ship from multiple warehouses, so an order with several items can arrive in more than one box. Tracking for each shipment is emailed as it goes out. Full details in the shipping policy.

Returns and warranty

  • What is the return policy?

    30 days from delivery, in new and uninstalled condition, with a restocking fee. Everything is spelled out in the Returns & Refund Policy.

  • How do warranty claims work?

    We are an authorized dealer, so the manufacturer's warranty applies to every part we sell. Call or text us with your order number and we handle the claim with the brand for you.

Paying

  • Can I pay over time?

    Yes. Shop Pay installments are offered at checkout on qualifying orders, and the monthly estimate shows right under the price.

  • What is a core deposit?

    Some remanufactured parts, like injectors and turbos, carry a refundable core deposit. It is shown on the product page when it applies and refunded when your old part comes back to us.

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  • We run what we sell

    A working diesel repair and fabrication shop in Nazareth, PA. These are the parts our techs install every week.

  • Real techs on the phone

    Call or text 908-223-9744 and you get a diesel tech, not a script.

  • Authorized dealer

    Genuine parts straight from the manufacturer, with the factory warranty behind them.

  • Fast from stock

    Most in-stock parts ship in 1 to 2 business days from warehouses across the USA.

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Full Send Diesel, Nazareth, PA

A team of diesel people, not a call center.

Full Send Diesel is a shop full of techs, builders and parts people in Nazareth, Pennsylvania. When you call or text, you reach someone who works on these trucks and knows the parts.

Not sure what you need? Send a photo of what you are replacing with your year and engine. We will point you to the right part, confirm it is in stock, and get it moving.

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Mon–Fri, 8am–4pm ET. After hours, text or email and we answer first thing in the morning.

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