Exergy 13-18 Late Dodge Cummins 6.7L 10mm Stroker CP3 Pump (6.7C Based)
For 2013-2018 Ram 2500 and 3500 trucks with the 6.7L Cummins, the factory CP3 is usually the first wall you hit after injectors and a tune. The Exergy 10mm Stroker CP3, part number E04 20406, gives a late 6.7 more fuel volume on a single pump, and Exergy rates it for builds up to 800+HP. It is a 6.7C-based pump made for this engine.
The CP3 is gear-driven from the engine and pressurizes the rail that feeds all six injectors. A metering valve at the pump inlet controls how much fuel it takes in, and the ECM targets rail pressure from there. When injector demand outruns what the stock plungers can move, the metering valve is wide open and rail pressure still falls. The 10mm stroker adds plunger travel so the pump delivers more per revolution at the same RPM.
Exergy bench-tests every pump through its whole range to 4500 RPM and 29,000 psi, after development pumps survived a 40-hour run at 4500 RPM. Exergy also notes third-party testing supporting a reasonable basis of federal emissions compliance for its 10mm Stroker pumps.
Record lift pump pressure and rail pressure together. Low supply pressure, a plugged filter or a leaking relief valve all mimic a weak pump, and the stroker needs a healthy supply to work. Behind this engine most trucks have the 68RFE, and added torque exposes its weak points. A shudder or flare under load can be the converter, not fuel. Read our 68RFE converter shudder guide before you blame the pump.
Exergy lists E04 20406 for 2013-2018 Ram 2500 and 3500 6.7, plus the 2013 Ram 4000, and says all of its late 6.7 CP3s also fit 2021 and newer 6.7 trucks. One important exception: trucks that came with a factory CP4.2 and had the CP3 conversion done by Dodge under recall use a different CP3 with a longer output shaft, and this pump is not compatible with them. Exergy lists it as a replacement for Bosch 0 986 437 334, 0 445 020 146, 0 445 020 076, 0 445 020 106 and 0 445 020 047, Cummins 50104877AA and Mopar R80277022AA and 8027067AC. Check your pump tag or send us the year and VIN. See the full lineup in engine performance parts.
No core charge or core return is needed. For the transmission side of a higher-power build, our 68RFE towing upgrades guide and 68RFE rebuild guide cover what to strengthen.
| Brand | Exergy |
| Part number | E04 20406 |
| Fits | Exergy 13-18 Late Dodge Cummins 6.7L 10mm Stroker CP3 Pump (6.7C Based) |
| Vehicle fitment | Dodge Cummins (2013-2018) |
| Type | Injection Pumps & Controllers |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
Exergy lists it for 2013-2018 and says its late 6.7 CP3s also fit 2021 and newer. Trucks built with a CP4.2 that had the Dodge recall CP3 conversion need a different pump with a longer shaft, so send us your year and VIN first.
Exergy requires a lift pump capable of 150 GPH at 15 psi per pump for maximum performance.
Exergy rates the 10mm Stroker CP3 for applications up to 800+HP. Results depend on injectors, turbo, tuning and fuel supply.
No. There is no core charge and no core needs to be returned.
Most of these trucks use the 68RFE, which is sensitive to added torque. Plan converter, clutch and cooling upgrades alongside more fuel if you tow or run hard.
