Engineered specifically for 2003 through 2018 Dodge Ram 2500, 3500, 4500, and 5500 trucks equipped with 5.9L and 6.7L Cummins 24-valve common-rail turbo diesel engines, the S&S Diesel Motorsport 10mm High-Pressure Stroker CP3 Injection Pump (CP3-CU-10) is the ideal high-pressure fueling solution for heavy street, towing, and moderate competition builds. Factory CP3 injection pumps suffer from internal volume constraints that cause fuel delivery to taper off sharply above 3,000 RPM, leading to rail pressure drop, elongated injection duration, elevated exhaust gas temperatures (EGTs), and lost power under load.

Built 100% brand-new using the latest-generation Bosch CP3NH 6.7L platform—never a remanufactured core—the CP3-CU-10 delivers 1,325 mm³/rev of displacement and reaches a peak output of 318 L/Hr at 5,000 RPM. This maintains steady common-rail fuel pressure up to 4,500 RPM, effortlessly fueling trucks making up to 800 rear-wheel horsepower. Because it starts from a brand-new factory unit with zero fatigue, this pump requires no core charge, no core return shipping, and ships with an individual performance validation test sheet from S&S test benches.

Key Features & Benefits

• High-Flow 10mm Stroker Displacement: Delivers 1,325 mm³/rev, providing an immediate increase in high-pressure fuel mass over standard OEM pumps.
• Supports Up to 800 Horsepower: Easily maintains commanded fuel rail pressure on trucks equipped with upgraded injectors, aftermarket turbochargers, and aggressive tuning.
• Extended High-RPM Delivery: Reaches a peak output of 318 L/Hr at 5,000 RPM, eliminating the typical 3,000 RPM factory delivery drop-off.
• 100% Brand-New Bosch Base: Constructed on brand-new, latest-generation Bosch CP3NH castings; requires zero core fee and eliminates core return downtime.
• Smooth Drivability & Tunability: Calibrated with factory-spec metering valve geometry to ensure crisp throttle response, rock-solid idle quality, and straightforward ECM tuning.
• Individual Test Data Sheet Included: Every single pump is validated on high-pressure test stands and ships with its specific calibration data sheet in the box.

Technical Specifications

• Manufacturer / Brand: S&S Diesel Motorsport
• Manufacturer Part Number / SKU: CP3-CU-10
• Alternative Internal Part Numbers: SSDCP3-CU-10 / CP3CU10
• Pump Base Architecture: Genuine Brand-New Bosch CP3NH 6.7L Cummins Platform
• Pump Stroke / Displacement: 10mm Stroker Assembly / 1,325 mm³/rev Displacement
• Peak Flow Output: 318 Liters Per Hour (L/Hr) at 5,000 RPM
• Horsepower Rating: Up to 800 Rear-Wheel Horsepower (RWHP)
• Delivery RPM Range: Sustained high-volume fueling up to 4,500+ RPM
• Truck Platform: 2003–2018 Dodge Ram 2500, 3500, 4500, 5500 Super Duty
• Engine Platform: 5.9L & 6.7L 24V Cummins Common-Rail Turbo Diesel
• Core Requirement: None
• Warranty: S&S Diesel Motorsport 2-Year Manufacturer Warranty

Vehicle Fitment & Technical Installation Notes

• 2007.5–2018 Dodge Ram 2500 / 3500 / 4500 / 5500 – 6.7L Cummins 24V Common-Rail Diesel (Direct Bolt-On)
• 2003–2007 Dodge Ram 2500 / 3500 – 5.9L Cummins 24V Common-Rail Diesel (Requires Supply Line Adaptation)
• Fits Model Years: 2003, 2004, 2004.5, 2005, 2006, 2007, 2007.5, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
• 5.9L Installation Note: Because this pump is built on the robust 6.7L CP3 platform, the low-pressure fuel supply port is located on the side of the mounting flange rather than the top. When installing on a 2003–2007 5.9L engine, the low-pressure supply line must be adapted using standard flexible fuel hose or 6.7L-style fuel line fittings.
• Lift Pump Requirement: An upgraded low-pressure electric fuel lift pump system rated at 150 GPH or higher (such as FASS Titanium or AirDog II-5G) is recommended to ensure positive inlet pressure and prevent internal plunger cavitation.
• Tuning Note: Custom ECM calibration is required to properly scale fuel delivery maps and Fuel Control Actuator (FCA) duty cycles to maximize efficiency.