Engineered specifically for 2004.5 through 2007 Dodge Ram 2500 and 3500 trucks powered by the 5.9L 24-valve common-rail Cummins turbo diesel engine (325 HP "600/610" series), the H&S Motorsports Dual High Pressure Fuel Kit With CP3 (Part # 451003) is the all-in-one high-pressure fuel solution for high-output street, heavy towing, and dedicated competition applications. When building past 550–600 horsepower, high-duration performance tuning and upgraded injectors drain common-rail fuel pressure, leading to sluggish acceleration, elevated exhaust gas temperatures (EGTs), and lost wheel horsepower.

Unlike kits that require sourcing a secondary pump separately or supplying a worn core, the HSM 451003 includes a 100% brand-new genuine OEM Bosch CP3 injection pump right in the box—never a remanufactured unit. The system utilizes a true dual independent rail feed design, plumbing the auxiliary belt-driven CP3 directly into the rear port of the factory common rail. This leaves the primary gear-driven CP3 and factory high-pressure lines in their stock configuration while preventing high-pressure line restrictions. Featuring a low-mount bracket geometry that maintains optimal serpentine belt wrap around both the secondary pump and the factory power steering pump, this complete bolt-on package effortlessly supports 800+ to 1,200+ wheel horsepower with zero core charge.

Pulley Finishes & SKU Variants

• Raw Machined Aluminum (SKU: 451003-1): Features a bright CNC-machined billet aluminum finish for a classic, industrial engine bay look.
• Black Anodized (SKU: 451003-2): Finished in a sleek black anodized coating that resists under-hood corrosion, engine oil, and road grime.
• Red Anodized (SKU: 451003-3): Finished in an anodized race red to accent high-performance competition engine bays.

Key Features & Benefits

• Includes 100% Brand-New OEM Bosch CP3: Comes complete with a factory-fresh genuine Bosch CP3 pump; requires no core deposit and no core return shipping.
• True Dual Independent Rail Feed: Directs secondary pump fuel delivery straight into the back of the fuel rail, ensuring unrestricted high-pressure fuel volume across all injectors.
• Proven 800+ to 1,200+ WHP Capability: Supplies the fuel volume required to maintain rock-solid commanded rail pressure under wide-open throttle (WOT) on big-single and compound turbo builds.
• Preserves Factory Primary Pump: Leaves the factory primary CP3 pump and original high-pressure hard line in their stock locations with zero modification.
• Optimized Low-Mount Pump Placement: Positions the secondary pump low on the engine block to maximize belt wrap and surface contact for both the CP3 and factory power steering pump.
• Microprocessor Controller Included: Automatically coordinates and drives both Fuel Control Actuators (FCAs) to ensure seamless idle stability and precise rail pressure regulation.
• Turnkey Complete Package: Includes pump, mounting brackets, billet pulley, extended serpentine belt, pre-formed radiator hose, high-pressure fuel lines, and plug-and-play wiring.

Technical Specifications

• Manufacturer / Brand: H&S Motorsports (HSM)
• Base Part Number / SKU: 451003
• Variant SKUs:
  • 451003-1 (Raw Billet Aluminum Pulley)
  • 451003-2 (Black Anodized Pulley)
  • 451003-3 (Red Anodized Pulley)
• Product Type: Complete Dual High Pressure Fuel System Kit (With Brand-New Secondary CP3)
• Secondary Pump Included: 100% Brand-New Genuine OEM Bosch Common-Rail CP3 Pump
• Rail Delivery Architecture: Independent Rear Fuel Rail Feed Port Connection
• Horsepower Rating: Easily supports 800+ to 1,200+ Wheel Horsepower (WHP)
• Electronic Control: Microprocessor Dual Pump Control Module Included
• Kit Contents:
  • Brand-New Genuine Bosch CP3 High-Pressure Injection Pump
  • Heavy-Duty Formed Steel Secondary Pump Mounting Brackets & Fasteners
  • CNC Billet Aluminum Drive Pulley (Selected Finish)
  • Heavy-Duty Extended Serpentine Belt
  • Seamless High-Pressure Steel Fuel Lines & Distribution Fittings
  • Pre-Formed Upper Radiator Hose
  • Dual-Pump Microprocessor Controller & Weather-Sealed Wiring Harness
• Truck Platform: 2004.5–2007 Dodge Ram 2500 & 3500
• Engine Platform: 5.9L 24V Cummins Common-Rail Turbo Diesel (600/610 Series)
• Core Requirement: None
• Warranty: H&S Motorsports Limited Warranty

Vehicle Fitment & Technical Installation Notes

• 2004.5–2007 Dodge Ram 2500 – 5.9L Cummins 24V Common-Rail Diesel
• 2004.5–2007 Dodge Ram 3500 – 5.9L Cummins 24V Common-Rail Diesel
• Fits Model Years: 2004.5, 2005, 2006, 2007
• Platform Fitment Notice: Engineered specifically for 2004.5–2007 5.9L Cummins engines. Fits 2003–early 2004 engines with minor bracket clearance and fuel rail port provisions. (For customers who already own an extra CP3 pump and only need the installation hardware, direct them to HSM SKU 451004).
• Lift Pump Prerequisite: An aftermarket electric fuel lift pump system rated at 165 to 200+ GPH (such as FASS Titanium or AirDog II-5G) with 1/2" supply plumbing is mandatory to provide adequate low-pressure volume to feed both high-pressure pumps.
• Cooling System Installation: The included custom-formed upper radiator hose must be installed in place of the factory hose to ensure clearance around the secondary CP3 pump bracket and drive belt.