Engineered specifically for 2003 through 2007 Dodge Ram 2500 and 3500 trucks powered by the 5.9L 24-valve common-rail Cummins turbo diesel engine, the Dynomite Diesel Products (DDP) Brand New Stock Replacement CP3 Fuel Injection Pump (NCP3-304) is the premier outright solution for restoring high-pressure fuel system reliability. When original CP3 pumps accumulate high mileage, internal plunger bore scoring and delivery check-valve erosion lead to symptoms such as extended cranking times, hard-start or no-start conditions, high return fuel rates, and diagnostic trouble code P0087 (low rail pressure).

Unlike remanufactured alternatives that reuse aged external housings and fatigued components, the DDP NCP3-304 is manufactured 100% brand-new from factory-fresh castings and components. Because it is an entirely new unit, there are no core charges, no core return shipping hassles, and no core inspection delays. Each pump arrives complete with a brand-new genuine Bosch Fuel Control Actuator (FCA / MPROP) and new installation seals, delivering factory-precise fuel atomization, stock engine power restoration, and dependable service life.

Key Features & Benefits

• 100% Brand-New Assembly: Manufactured entirely with factory-fresh Bosch components—never a remanufactured or repaired core—eliminating casting fatigue and internal wear risks.
• Zero Core Charge ($0 Core Fee): Sold outright; avoids core deposit charges on checkout and eliminates the effort and expense of shipping back an old core.
• Factory OE Specification Calibration: Flow-tested and calibrated to original equipment parameters to restore optimal fuel pressure, horsepower, and fuel economy.
• Brand-New Genuine Bosch FCA Pre-Installed: Resolves erratic rail pressure hunting, idle surge, and hard-start issues caused by sticking or worn metering valves.
• Direct Drop-In 5.9L Fitment: Retains the factory 5.9L top-mount fuel port and bolt pattern; connects directly to original hard lines and mounting brackets without adapters.
• Tested & Validated: Fully tested on calibrated high-pressure test benches to ensure balance across all internal pumping chambers right out of the box.

Technical Specifications

• Manufacturer / Brand: Dynomite Diesel Products (DDP)
• Manufacturer Part Number / SKU: NCP3-304
• Alternative Part Numbers: DDPNCP3-304 / DDP-NCP3-304 / NCP3304
• OE / Bosch Cross-Reference Numbers: 0 986 437 304 / 0445020011 / 0445020147 / 5264247 / R5143425AA
• Pump Series: DDP Brand New Stock Replacement Series
• Displacement / Output: Standard OE Flow Rate (Stock Replacement)
• Actuator Hardware: Brand-New Pre-Installed Genuine Bosch Fuel Control Actuator (FCA / MPROP)
• Condition: 100% Brand-New Outright Unit
• Truck Platform: 2003–2007 Dodge Ram 2500 & 3500
• Engine Platform: 5.9L 24V Cummins Common-Rail Turbo Diesel
• Core Requirement: None
• Warranty: Dynomite Diesel Products 1-Year Manufacturer Warranty

Vehicle Fitment & Installation Notes

• 2003–2007 Dodge Ram 2500 – 5.9L Cummins 24V Common-Rail Diesel
• 2003–2007 Dodge Ram 3500 – 5.9L Cummins 24V Common-Rail Diesel
• Fits Model Years: 2003, 2004, 2004.5, 2005, 2006, 2007
• Fitment Notice: Direct bolt-on replacement for factory gear-driven engine block mounting on 2003–2007 5.9L engines. Compatible with factory fuel rails and high-pressure lines without modification. (For customers seeking a remanufactured core-exchange unit at a lower price point, direct them to DDP SKU CP3-304.)
• Installation Tip: Clean the front timing gear cover cavity thoroughly before mounting the new pump. Lubricate the pump drive hub O-ring with clean engine oil. Torque the pump drive gear retaining nut to factory Cummins specifications (105 ft-lbs). Prime the low-pressure fuel system thoroughly using key-on cycles before cranking the engine to prevent dry-scuffing internal plungers.