Fleece 6.7 L Cummins CP3K for Improved Fuel Flow

Fleece Performance CP3K – Modified CP3 Pump for 6.7 L Cummins

Give your 2007.5-2018 Ram 2500/3500 6.7 L Cummins the fuel it craves at high RPM. The Fleece Performance CP3K is a brand-new Bosch CP3 injection pump that Fleece re-engineered to eliminate the factory fuel-flow bottleneck that appears around 3 000 RPM. By holding target rail pressure all the way to redline, the CP3K protects horsepower you would otherwise leave on the table.

Key Benefits

• No more high-RPM pressure drop – maintain commanded rail pressure beyond 3 000 RPM for stronger top-end power.
• Supports up to ~650 rwhp with the right injectors and tuning, ideal for street and towing builds.
• Perfect primary for dual-pump setups where a full PowerFlo 750 isn’t required, yet full flow is.
• Brand-new Bosch hardware – not a reman; comes with no core charge.
• 50-state emissions-legal (CARB EO D-834-8) for true street compliance.
• Backed by Fleece’s 1-year limited warranty for peace of mind.

Vehicle Fitment

Direct replacement for: 2007.5-2018 Ram 2500 & 3500 with 6.7 L Cummins diesel (all trim levels, automatic or manual).

Technical Specs

*Actual horsepower capability depends on supporting mods, tuning, and fuel quality.

Why Choose Fleece Performance?

Founded by diesel racers, Fleece designs and builds each component in the USA with obsessive attention to reliability and real-world gains. Their CP3K pump has become the go-to upgrade for Cummins owners who daily-drive, tow, and play on the weekends.

Recommended Companion Parts

• High-Flow Feed Line Kit – maximizes inlet supply to your new CP3K.
• Injector Line Set – fresh lines ensure leak-free, balanced delivery.
• Dual-CP3 Install Kit – add a second pump for 750 + rwhp builds.

Installation & Warranty

Installs just like the factory CP3 with basic hand tools; no special tuning required out of the box. Always purge the fuel system and observe cleanliness standards when swapping high-pressure components. Warranty claims are handled directly by Fleece Performance Engineering.