What Year Did Cummins Engines Have The P-Pump?
Engines have evolved to meet changing emissions standards. One innovation from Cummins to meet those standards was the mechanical injection P-Pump.
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CP4 Pump: Which Diesel Engines Use It And Why Is It So Problematic?
using the oft-maligned CP4 pump from 2016 through 2019 on 5.0-liter V8 Cummins diesel-equipped Titan XD pickups. Ford is the only major automaker to continue using the CP4 injection pump since ...