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CP4 Pump: Which Diesel Engines Use It And Why Is It So Problematic?
The metal fragments can infiltrate the high-pressure fuel lines that feed the ... is powered by an LML Duramax or 6.7L Cummins, you could replace the CP4 pump by using a CP3 conversion kit from ...
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What Year Did Cummins Engines Have The P-Pump?
The second generation of 5.9L Cummins ... precise amount of fuel. This will evenly transmit force in the cylinders to the torque converter as the P-pump manages the cylinder pressure by injecting ...