S&S Diesel Duramax CP3 12mm High Pressure Pump - CP3-DMX-12

Duramax CP3 pumps are built from brand new Bosch LBZ-based pumps, and then modified to suit various fueling requirements from 500 to 1,400 horsepower in a single pump configuration. Every S&S CP3 pump will have a data sheet in the box that is crucial for proper calibration. S&S CP3 pumps are internally modified, besides just increasing displacement, to efficiently deliver fuel well beyond the peak RPM of most diesel engines. Why? Some competition engines need high-rpm fueling, so S&S makes it a standard. The competition CP3 pumps might not be for everyone, but they're a wise choice for those who want the best... and the data above backs it up. S&S Modified 12mm CP3 Injection Pump is recommended for applications up to 1,000HP on 2001-2016 Duramax applications. For best performance use a 150 GPH or higher lift pump. This modified CP3 offers fueling capabilities up to 4,500 RPM, where a stock CP3 falls off at 3,000 RPM. Based off of an LBZ Pump and comes standard with an LBZ FPR. Custom tuning is required. No Core Fee. This Brand New LBZ based S&S 12mm Stroker Pump(46% over stock displacement) is the best option for any customer needing to get more power and flow out of a single CP3 set up. The 12mm Stroker Pump will out perform and outlast any other pump on the market. They are set up to support over 1000hp with 1 single CP3. The 12mm pump is modified to eliminate the fuel flow restrictions that begin at 3000 RPM on stock CP3's. This pump can also be used in a LML CP3 conversion(tuning may be required). Notes: Brand New Pump (No Core Needed) Tuning is REQUIRED if installing on 2001-2005 LB7 and LLY engines Fitment on LB7's requires you to modify the regulator connectors to make them fit.