Stock Flow CP3 Pumps

2010-2018 Dodge Ram 2500 & 3500 6.7L Cummins OEM Replacement Stock CP3 Pumps

Restore your common-rail fuel system’s efficiency, eliminate hard-starting issues, and maintain factory-spec fuel delivery parameters with premium 2010–2018 6.7L Cummins 4th Gen stock CP3 pumps from Full Force Diesel. The high-pressure fuel injection pump is the heart of your 4th Generation inline-six engine, responsible for compressing low-pressure diesel up into the immense pressures required by your fuel rail and injectors. Over hundreds of thousands of miles of service, internal plungers, delivery valves, and internal cams wear down, diminishing the pump's displacement efficiency. Replacing a worn or fatigued pump with an OEM-spec, stock-displacement CP3 unit ensures your common-rail platform delivers the precise pressure required to run smoothly and cleanly.

Recognizing the Symptoms of a Failing Factory Injection Pump

As the miles pile up on a 4th Gen common-rail truck, an aging high-pressure fuel pump will begin to exhibit distinct operational signs of mechanical fatigue:

• Extended Crank Times and Hard Starts: When internal clearances within the CP3 pump widen due to high mileage or poor fuel lubrication, the pump struggles to build initial cranking rail pressure quickly. This leads to frustratingly long crank times, especially when the engine is hot, as the pump cannot generate the minimum pressure thresholds required by the Engine Control Module (ECM) to command the injectors to fire.

• Low Rail Pressure Fault Codes: A degraded pump will frequently fall short of commanded rail pressure under heavy loads, such as when towing a heavy fifth-wheel trailer up a steep grade. This variance triggers defensive diagnostic trouble codes (such as P0087 for low fuel rail pressure), illuminating the check engine light and often forcing the ECM into a protective defuel limp-mode strategy to guard the internal rotating assembly. Replacing the worn unit with a fresh stock pump completely remedies these performance drop-offs.

Premium OE-Spec Manufacturing: Restoring True Drivability

Our selection of stock-displacement CP3 pumps features brand-new and premium remanufactured units built to meet or exceed original factory constraints:

• Machine-Shop-Certified Quality: Every replacement stock CP3 pump undergoes rigorous testing to ensure flawless calibration across all operating speeds. Remanufactured units are completely torn down, cleaned, and fitted with brand-new internal seals, micro-polished plungers, and updated internal check valves to resist wear from modern ultra-low sulfur diesel fuel. This meticulous process ensures that your replacement pump will deliver original factory throttle response and smooth, quiet idling.

• Drop-In Convenience and Completeness: These pumps are engineered as direct, bolt-on replacements that drop straight into the factory location on the front gear cover layout. To guarantee a professional and leak-free installation, our stock pumps come complete with a pre-installed fuel control actuator (FCA) or electronic pressure regulator. Whether you are addressing standard high-mileage maintenance or executing a complete stock engine overhaul, choosing a premium OE-spec pump guarantees absolute fueling dependability.

At Full Force Diesel, we are dedicated to providing the rugged, street-proven hardware and factory-grade replacement components your 4th Gen inline-six needs to stay on the job. Explore our complete selection of 2010–2018 6.7L Cummins 4th Gen stock CP3 injection pumps, factory replacement fueling accessories, and premium line kits above to secure your truck's mechanical integrity today.