The HPOP, or High Pressure Oil Pump, on your 6.0L is the heart of your engine, ensuring that not only are you able to build oil pressure, but to build oil pressure that drives your HEUI injectors. Without adequate volume and pressure, your truck simply won't run as it could. Whether you've installed larger injectors, tuning, or you merely have a bone stock engine and the factory HPOP is on its way out, this Stage 1 HPOP from CNC Fab is an excellent choice. This pump features a new upgraded housing that cures the infamous "back plate wear out" with the original design. This pump has enough volume to sustain up to 190cc or smaller injectors.