Fleece CP3K Injection Pump for 2003-2007 Dodge Ram 5.9L Cummins
FPEFPE-CUMM-CP3K-5.9A stock CP3 on the 5.9L loses fuel flow and rail pressure past 3,000 RPM. The CP3K fixes that.
The Fleece CP3K is a modified 5.9L Cummins CP3 that eliminates that factory fuel flow restriction. It's a cost effective upgrade that holds your desired fuel rail pressure through the entire RPM range.
Why the CP3K
- Modified 5.9L Cummins CP3
- Eliminates the factory fuel flow restriction that begins at 3,000 RPM
- Maintains rail pressure through the whole RPM range
- Cost effective fuel upgrade
Note: This 5.9L pump should not be used in a belt drive application (ie. dual pump setup).
Specs
- Type: Modified CP3 injection pump
- Engine: 2003-2007 5.9L Cummins
- Part number: FPE-CUMM-CP3K-5.9
Tuning with PPEI
This is a pump PPEI recommends, and you'll find Fleece CP3s on our own trucks. PPEI 5.9L Cummins engine tuning counts on rail pressure, and the CP3K holds it past 3,000 RPM where the stock pump gives up. The truck keeps pulling to the top with quicker throttle response and more efficient power.
Fitment
- Dodge Ram 2500: 2003,2005-2007 Laramie; 2003-2007 SLT, ST; 2006-2007 Sport, TRX4
- Dodge Ram 3500: 2003-2007 Laramie, SLT, ST; 2006-2007 Sport; 2007 TRX4
Couldn't load pickup availability

WHO IS THE TUNER/CALIBRATOR
PPEI, also known as Power Performance Enterprises, Inc., is led by the business owner and lead calibrator/tuner Kory Willis. PPEI began calibrating/tuning back in 2008, specializing in Diesel Performance but has since expanded into the Gas and Powersports industries. Kory and the team at PPEI have set many world records along with continuing many industry “firsts”. We take pride in knowing that Kory not only prides his work, but also thoroughly enjoys setting expectations high for our team so our customers can have the best products available in the world.









