S&S Diesel Motorsports CP3-CU-SS SuperSport High-Pressure CP3 Injection Pump for 5.9L/6.7L Cummins

The S&S Diesel Motorsports CP3-CU-SS SuperSport CP3 is a high-performance, brand-new high-pressure injection pump engineered for Common Rail 5.9L and 6.7L Cummins diesel applications. Designed for trucks from stock configuration up to approximately 500 horsepower, this pump delivers improved fuel rail pressure and consistency where the factory CP3 begins to fall short.

The key advantage of the SuperSport is its higher output above 3,500 RPM. The stock OEM CP3 pump begins to lose flow capacity around 3,000 RPM, causing rail pressure drop-off at the top of the power band. The CP3-CU-SS maintains strong, consistent fuel delivery well into the upper RPM range, supporting cleaner combustion and more reliable power output under demanding conditions.

Built on a new 6.7L-based pump platform, this unit is not a remanufactured or rebuilt core — it is a brand-new pump modified to S&S Diesel Motorsports' exacting performance standards. No core charge applies.

Key Features:

• Higher fuel output above 3,500 RPM versus OEM CP3 pump
• Recommended for applications up to 500 HP on Common Rail Cummins
• New 6.7L-based pump platform — not remanufactured
• No core charge required
• Custom tuning required for proper operation
• Recommended lift pump: 150 GPH or higher for best performance
• Compatible with 5.9L and 6.7L Common Rail Cummins engines

For diesel enthusiasts looking for a reliable performance upgrade over the factory CP3, the S&S Diesel Motorsports CP3-CU-SS SuperSport delivers improved fueling capacity and high-RPM rail pressure stability. Custom tuning is required. A lift pump rated at 150 GPH or greater is strongly recommended to maximize pump performance and longevity.