DIY Stroker CP3 Kit

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DIY Stroker CP3 Kit

$395.00 – $478.00

More Flow. Less Cost. Real Performance Gains.

Unlock hidden power from your truck with the Motorsport Diesel DIY Stroker CP3 Kit. This precision-machined upgrade boosts fuel output without the price tag of a high-dollar stroker. Built by the original stroker CP3 pioneers, it delivers real flow gains with proven reliability. With an easy-to-follow installation process, this kit puts performance back in your hands. Whether you’re towing, racing, or daily driving, this is the fueling upgrade your truck’s been waiting for. Build it yourself. Feel the difference.

Upgrade your CP3 pump and unleash more fuel flow and horsepower with the DIY Stroker CP3 Kit from Motorsport Diesel. Designed for performance enthusiasts who want more out of their factory pump, this kit delivers increased output, durability, and DIY satisfaction-all in one box.

Developed by the team that pioneered the first stroker CP3 on the market, this kit represents the latest evolution in CP3 modification technology. With a refined stroke length that balances high flow and long-term reliability, this kit is ideal for both high-performance applications and stock trucks.

Unlike many advertised 10mm strokers that fall short in actual performance, this kit offers real, tested gains with easy installation and clear instructions to get you up and running quickly.

Key Features:

  • Increased Fuel Output: Designed to deliver a measurable increase in flow over stock without over-stroking or stressing pump internals.
  • Balanced Stroke Geometry: Optimized stroke length provides strong output while maintaining long-term reliability.
  • DIY-Friendly Installation: Includes detailed instructions and access to video guides. No guesswork, no core charge, no shipping your pump out.
  • Precision Engineering: Machined in-house to exacting standards.
  • Affordable Power: Build it yourself and save.

Why Go DIY?

This kit gives you the flexibility to upgrade on your terms. Whether you’re a professional builder or a weekend warrior, the DIY Stroker CP3 Kit lets you retain your existing pump and still achieve the gains you’re after. Installation is straightforward, and the end result is the same strong fueling you’d expect from a high-dollar stroker, but without the premium price tag.

Whether you’re rebuilding a tired CP3 or just looking to give your truck the fueling it’s been asking for, this kit gives you the parts to do it right.

What’s In the Box?

  • 1x Motorsport Diesel Stroker Shaft

  • 1x Cascade Valve Modification Kit

  • (Optional) CP3 Shaft Press Tool – saves $30 when bundled

Fits:

  • 2003–2007 5.9 Cummins

  • 2007.5-2025 6.7 Cummins (not retro-fitted from CP4 pumps)

  • 2006-2010 Duramax LBZ/LMM

Upgrade your fueling system today to unlock more flow, more power, and more control with the DIY Stroker CP3 Kit from Motorsport Diesel. Your truck will thank you!

Weight 0.1 lbs
Dimensions 0.1 × 0.1 × 0.1 in
Pump

5.9, Early 6.7 (19mm Cascade Overflow Valve), Late 6.7 (16mm Cascade Overflow Valve), LBZ/LMM
Include Tool

Yes, No

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IMPORTANT STUFF YOU NEED TO KNOW

We keep it simple. If you're buying or installing one of our DIY parts, here's what you need to know up front:

Our Parts Are Built for Performance

We make parts for serious diesel enthusiasts-not your grandma’s grocery getter. Most of our parts are meant for off-road, race, or competition use only. If you're concerned about emissions laws or staying 100% street-legal, double-check your local laws.

You Install It, You Own It

These are high-performance fuel system parts. If you don’t know what you’re doing, don’t wing it-have a qualified mechanic handle the install. We include helpful info, but you’re responsible for what you bolt to your truck.

You Break It, You Bought It

If something goes sideways-blown engine, fuel spray, or full-on kaboom-we’re not on the hook. No warranty. No promises. Use it right or don’t use it at all.

By Buying, You Agree

When you buy from Motorsport Diesel, you're agreeing that:
  • You know what this part does
  • DIY means DO IT YOURSELF. That means you’re responsible for everything.