S&S Diesel Motorsport Cummins 14mm High Speed CP3 Pump (CP3-CU-14-HS)

1,850 mm³/rev Displacement – High-Speed Optimized – New 6.7L-Based

The S&S Diesel Motorsport 14mm High Speed CP3 is a new, high-performance common-rail injection pump engineered for serious 5.9L and 6.7L Cummins builds that demand consistent fueling at elevated RPM. With a massive 1,850 mm³/rev displacement and high-speed internal optimization, this pump maintains strong rail pressure and fuel delivery well past the point where stock and milder aftermarket CP3s fall off.

Key Features

• 1,850 mm³/rev displacement – Significant volume increase over stock for high-horsepower applications
• High-speed optimized – Sustains fueling capability up to approximately 5,500 RPM (stock CP3s typically drop off around 3,000 RPM)
• New construction – Built from a 6.7L-based core with no core charge
• Recommended for up to ~1,200 HP on properly supported common-rail 5.9L & 6.7L Cummins engines (high-RPM applications)
• Heavy-duty design using quality aluminum and steel components for durability under high pressure and stress

Fitment

• 2003–2024 Dodge Ram 2500/3500 with 5.9L or 6.7L Cummins common-rail engines
• Direct fit on 6.7L applications
• 5.9L installations require high-pressure fuel line adaptation/modification (6.7L-based pump)

Recommendations

• Pair with a high-flow lift pump (200 GPH or higher recommended for best performance)
• Custom tuning is required
• For extreme multi-pump or competition setups, consider pairing with an upgraded supply system (such as S&S SP3000 options)

This is the go-to pump when you need reliable high-volume fueling that holds up under high-RPM loads for street, strip, or competition Cummins trucks.