Alliant Power HP4 to DCR Pump Conversion Kit

For 2017, 2018, 2019, 2020, 2021, 2022 GM 6.6L Duramax L5P

Direct replacement for the HP4 is 100% end of line tested to ensure no leaks and peak performance. The Double Cam Roller (DCR) pump represents an advanced leap in high-pressure fuel generation, specifically engineered to meet the stringent demands of modern common rail diesel technology. Replacing the original factory-installed HP4 pump, the DCR is designed to integrate seamlessly while delivering unmatched reliability and precision, crucial for maximizing engine power and fuel efficiency.

This DCR Fuel Pump undergoes a rigorous 100% end-of-line testing process to guarantee peak performance and absolutely no leaks before leaving the facility. Proudly USA assembled and built in a facility certified under the ISO 9001:2015 quality management standard, assuring a commitment to superior quality and consistency.

Kit Includes-
Fuel pump
Fuel supply and return lines
High pressure pump to rail line
High pressure rail to rail line
Supply hold down bolt