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 BD Diesel Stock Exchange Remanufactured CP3 High-Pressure Fuel Injection Pump (1050105) restores factory fuel pressure delivery, throttle response, and engine starting performance. Over high engine hours, stock CP3 pumps develop internal barrel-and-plunger wear, delivery valve seat leakage, and electrical metering fatigue. This causes symptom patterns including extended crank times, hard-start/no-start conditions, low common-rail pressure diagnostic trouble codes (such as P0087), and heavy black smoke under acceleration.

BD Diesel brings over 50 years of diesel fuel injection rebuilding experience (dating back to Valley Fuel Injection in 1972) to their Stock Exchange program. Every 1050105 core undergoes comprehensive disassembly, ultrasonic cleaning, precision component inspection, and replacement of all critical high-pressure seals, O-rings, and internal wear items. Crucially, each pump is fitted with a brand-new genuine Bosch Fuel Control Actuator (FCA / MPROP) and validated on computer-controlled test benches to match factory Cummins/Bosch delivery curves, ensuring an OE-grade, cost-effective replacement.

Key Features & Benefits

• Factory OE Delivery Calibration: Tested and calibrated to original equipment flow tables to restore stock horsepower, fuel economy, and clean emissions.
• Brand-New Genuine Bosch FCA Pre-Installed: Eliminates idle surge, fuel pressure hunting, and hard-start issues caused by stuck or sticking factory metering valves.
• Precision Clean-Room Reassembly: Built using factory-trained technicians and computerized calibration equipment to ensure low warranty claim rates.
• 100% Direct Drop-In Installation: Retains factory 5.9L top-mount fuel port geometry and OEM mounting bolt locations; reuses factory hard lines and drive gear without modification.
• Includes Mounting Hardware: Ships complete with new mounting O-rings and rubber-infused sealing washers for a clean, leak-free installation.
• Restores Common-Rail Pressure: Resolves low-rail-pressure DTCs (P0087) and high injector return rate issues to ensure smooth engine operation.

Technical Specifications

• Manufacturer / Brand: BD Diesel Performance
• Manufacturer Part Number / SKU: 1050105
• UPC: 628378250009
• OE / Bosch Cross-Reference Numbers: 0 986 437 304 / 0445020011 / 0445020147 / 5264247 / R5143425AA
• Pump Series: BD Diesel Stock Exchange Reman Series
• Displacement / Output: Standard Factory OE Flow (3.05 LPM Stock Replacement)
• Metering Actuator: Brand-New Genuine Bosch Fuel Control Actuator (FCA / MPROP) Included
• Truck Platform: 2003–2007 Dodge Ram 2500 & 3500
• Engine Platform: 5.9L 24V Cummins Common-Rail Turbo Diesel
• Core Requirement: Core Return Required (Standard BD Diesel Refundable Core Deposit)
• Warranty: BD Diesel Performance 1-Year / Unlimited-Mileage 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: Engineered specifically for factory gear-driven engine block mounting on 2003–2007 5.9L Cummins engines. Does not require fuel line adaptation (unlike 6.7L-based conversions). Reuses factory drive gear and mounting nuts.
• Installation Tip: Clean all debris and carbon out of the front gear case pocket before mounting. Lubricate the pump drive snout 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 circuit using the in-tank lift pump or key-on cycles before cranking to ensure internal lubrication.