Engineered specifically for 2003 through 2007 Dodge Ram 2500 and 3500 trucks equipped with the 5.9L 24-valve common-rail Cummins turbo diesel engine, the Industrial Injection Double Dragon 120% Over 12mm Stroker Remanufactured CP3 Injection Pump (0986437304DDSE) is built for serious competition and extreme street builds. Stock common-rail CP3 pumps reach their volumetric delivery ceiling around 500 horsepower, leading to sudden rail pressure drops and lean combustion under heavy throttle.

Built on genuine Bosch factory remanufactured cores in OEM-certified clean rooms, the Double Dragon incorporates a high-displacement 12mm stroker eccentric shaft and matched heavy-duty plungers. Delivering 120% more fuel volume than a stock CP3, this pump sustains commanded rail pressure for high-demand competition setups making up to 1,050+ rear-wheel horsepower. It includes a brand-new Bosch Fuel Control Actuator (FCA / MPROP) and high-hardness, low-friction internal coatings to prevent galling and heat-related wear under continuous extreme pressure.

Key Features & Benefits

• +120% Fuel Flow Delivery: Delivers more than double the fuel displacement of a factory stock 5.9L CP3 to eliminate rail pressure drain under wide-open throttle.
• 12mm Stroker Assembly: Precision-machined 12mm stroker shaft and enlarged pumping elements maximize fuel volume per revolution.
• Supports Up to 1,050+ Horsepower: Delivers ample fuel mass for aggressive competition tunes, massive injector nozzles, and compound turbo setups.
• New Bosch FCA / MPROP Included: Ships complete with a pre-installed, brand-new genuine Bosch fuel metering valve for precise rail pressure control.
• Direct Bolt-On 5.9L Configuration: Built on the authentic 5.9L platform with the factory top-mounted fuel port for drop-in installation onto stock brackets and high-pressure lines.
• Tested & Calibrated: Built and balanced on factory OEM-certified test benches to ensure balance across all three pumping chambers.

Technical Specifications

• Manufacturer / Brand: Industrial Injection Diesel Performance
• Manufacturer Part Number / SKU: 0986437304DDSE
• Alternative Part Numbers: 0986437304DD / IIS-0986437304DDSE / IIS0986437304DDSE
• Bosch Base Casting: 0 986 437 304 / 0445020011
• Pump Series: Double Dragon Performance Modified CP3 Series
• Displacement / Modification: 12mm Stroker Assembly (+120% Fuel Flow Over Stock)
• Horsepower Rating: Rated for applications up to 1,050+ RWHP
• Truck Platform: 2003–2007 Dodge Ram 2500 & 3500
• Engine Platform: 5.9L 24V Cummins Common-Rail Turbo Diesel
• Core Requirement: None
• Warranty: Industrial Injection 1-Year / Unlimited-Mileage Warranty

Vehicle Fitment & Technical 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 fit for factory gear-driven engine block mounting on 2003–2007 5.9L Common Rail engines. Reuses factory gear and mounting hardware.
• Fuel Supply Requirement: A high-volume aftermarket lift pump rated at 165 to 200+ GPH (such as FASS or AirDog) with minimum 1/2" supply lines and a tank sump or draw straw is required to prevent pump cavitation.
• Tuning Requirement: Custom ECM tuning (e.g., HP Tuners, EFI Live, or Smarty Touch) is mandatory to calibrate the fuel control actuator scaling and high-pressure fuel map curves.