Exergy 03-07 Dodge Cummins 5.9L 14mm Stroker CP3 Pump Race Series (6.7C Based)
If you are running a 2003-2007 Dodge Ram 2500 or 3500 with the 5.9L common-rail Cummins and you have outgrown a 10mm or 12mm stroker, the Exergy 14mm Race Series CP3 is the step that keeps you on one pump. Exergy rates it to easily support 1200HP, with some fuel-only builds past 1500HP, without the second pump, belt and controller that a dual-pump kit brings. This page covers what changes when you go to 14mm and what your truck needs around it.
The CP3 is the gear-driven pump that pressurizes fuel for the common rail. Its plungers move a fixed amount of fuel per revolution, so the only ways to get more volume are more RPM or more plunger travel. A stroker pump uses a longer stroke so every turn of the pump moves more fuel. The 14mm Race Series is the long-stroke version in Exergy's 5.9 lineup, sitting above the 10mm and 12mm pumps.
Exergy tests every pump through its operating range up to 4500 RPM and 29,000 psi before it ships, and the design was durability-run at 4500 RPM for 40 hours during development. Like the 550 Alpha, it uses Exergy's own MPROP and regulator design and a 6.7C-based body, so the supply plumbing is different from the factory 5.9 pump.
Log rail pressure and lift pump feed pressure together on a full-throttle pull. If feed pressure collapses, fix the supply first, because a starving 14mm pump will not make its rating. Verify filters are fresh and the relief valve is not leaking back. Also think about where the power goes: at these levels the stock automatic is the weak link, and a slipping or shuddering 48RE can look like a fuel problem on the dyno. Our 48RE converter shudder guide explains how to tell the difference.
Part number E04 20009 is listed for 2003-2007 Dodge Ram 2500 and 3500 with the 5.9L Cummins, early and late 5.9. Exergy's fitment chart also shows 2007 Ram 2500 and 3500 6.7 entries under this listing, but this page is sold for the 5.9 application named in the title; 6.7 owners should confirm with us before ordering. The fuel supply line must be modified because the original supply port is plugged and fuel feeds the billet gear pump housing at the port marked Inlet. Exergy says that plug should never be removed. Send the year and VIN if you want us to double-check before you buy.
Exergy states there is no core charge on this pump. If your truck spends time above 4500 RPM, the 550 Alpha CP3 carries the same design higher in the rev range. Before you add this much fuel, plan the drivetrain with our 48RE Cummins transmission guide.
| Brand | Exergy |
| Part number | E04 20009 |
| Fits | Exergy 03-07 Dodge Cummins 5.9L 14mm Stroker CP3 Pump Race Series (6.7C Based) |
| Vehicle fitment | Dodge Cummins (2003-2007) |
| Type | Injection Pumps & Controllers |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
Exergy says a single 14mm Race Series pump will easily support 1200HP, and some applications have gone past 1500HP on fuel only. Actual results depend on injectors, turbo, tuning and fuel supply.
Yes. Exergy specifies 200 GPH at 15 psi per pump for maximum performance. Without that supply the pump cannot deliver its rated volume.
No. Exergy states there is no core charge and no core needs to be returned for this pump.
Not entirely. It is a 6.7C-based pump, the original supply port is plugged, and fuel feeds the Inlet port on the billet gear pump housing, so the supply line has to be modified.
The 14mm Race Series is the choice for most high-horsepower 5.9 builds. The 550 Alpha is based on it but carries output about 1000 RPM higher, which only pays off if the engine regularly spins past 4500 RPM.
