Fleece Performance Diesel Fuel Injector Pump

Fleece Performance Diesel Fuel Injector Pumps: Built for Real Power

When it comes to high-pressure diesel fuel injection, few names carry the weight that Fleece Performance Engineering has earned in the diesel aftermarket. Fleece Performance Engineering is a leading manufacturer of aftermarket diesel performance products, with a reputation for innovation, quality, and service that pushes the limits of diesel performance technology. Nowhere is that commitment more apparent than in their lineup of diesel fuel injector pumps — purpose-built units engineered to keep fuel-hungry common-rail diesel engines fed at every power level.

The CP3K: A Purpose-Built High-Volume Injection Pump

At the heart of Fleece Performance's injector pump lineup is the CP3K — a high-volume injection pump available for both the GM Duramax and Dodge Ram Cummins platforms. The Fleece Performance CP3K Injection Pump for the 6.6L GM Duramax is built to support reliable fuel flow and injector operation. The CP3K is also offered for the 5.9L and 6.7L Cummins engines, making it one of the most versatile high-output pump options available for light-duty diesel trucks. Whether you're running larger injectors, aggressive tunes, or simply want consistent rail pressure at higher RPMs, the CP3K delivers the volume needed to match your build.

PowerFlo 750 CP3: Serious Fuel Volume for Serious Builds

For diesel enthusiasts pushing into serious horsepower territory, Fleece offers the PowerFlo 750 CP3. With a multitude of CP3 pumps and upgrades to choose from, Fleece covers everything from high-flow feed lines to the PowerFlo CP3 injection pump to support up to 1,000+ RWHP — making the PowerFlo 750 a key stepping stone for builds chasing big numbers. The PowerFlo 750 CP3 is available for the GM Duramax as well as both the 5.9L and 6.7L Cummins platforms, ensuring broad fitment across the most popular diesel truck engines on the market.

Why Fleece Performance Stands Out in the Injector Pump Category

What separates Fleece from the competition isn't just product breadth — it's engineering depth. Fleece Performance Engineering specializes in the development and manufacturing of innovative products to improve the performance and reliability of Cummins, Duramax, and Powerstroke engines, having grown from a family farm shop into a full-scale operation excelling in air and fuel-related components for light-duty diesel. A continuous focus on product quality and the creation of new design principles before the competition is what keeps Fleece Performance growing year after year and at the forefront of the winner's circle.

The common-rail fuel system is fundamentally a supply-and-demand equation. CP3 pumps are limited in what they can supply based on displacement and RPM — as demand increases beyond that capacity, fuel rail pressure starts to drop. Fleece's upgraded injection pumps are engineered specifically to close that gap, providing the volume and pressure margins that stock or baseline pumps simply cannot sustain under demanding conditions. Fleece isn't "just" for the hot rod diesel market — they have kits and components for every level of diesel truck owner.

Whether you're building a street-driven workhorse or a high-horsepower competition rig, Fleece Performance's diesel fuel injector pumps represent a proven, precision-engineered solution trusted by diesel enthusiasts nationwide. Explore the full Fleece Performance brand page or browse all diesel fuel injector pumps to find the right fit for your application.