S&S Diesel Motorsport CP3-CU-12-HS – New 12mm High Speed CP3 Pump

Unleash serious fueling capability with the S&S Diesel Motorsport CP3-CU-12-HS New 12mm High Speed CP3 pump. Built on the stronger 6.7L-based CP3 architecture and featuring 1,590 mm³/rev displacement, this brand-new (not remanufactured) high-speed pump is engineered to deliver consistent, high-volume fuel flow and stable rail pressure well into elevated RPM ranges where stock and standard stroker pumps begin to fall off.

Ideal for high-performance 5.9L and 6.7L Cummins builds targeting up to approximately 1,000 HP (with supporting injectors, lift pump, and tuning), the high-speed internal modifications improve efficiency and fueling consistency at higher engine speeds for smoother power delivery and stronger top-end performance.

Key Features

• Brand new 12mm High Speed CP3 (1,590 mm³/rev displacement)
• Optimized for high-RPM fueling stability and efficiency
• Robust 6.7L-based pump architecture for improved strength and durability
• Supports aggressive single-pump performance builds
• Requires custom tuning for best results
• No core charge

Fitment

• 2003–2007 Dodge Ram 2500/3500 5.9L Cummins 24V
• 2007.5–2018 Ram 2500/3500 6.7L Cummins 24V

Important Installation Note: All S&S Cummins CP3 pumps are built on the 6.7L base. When installing on a 2003–2007 5.9L truck, modification or adaptation of the high-pressure fuel lines/fittings is required. An upgraded lift/supply pump is strongly recommended for proper support.

This pump is a proven upgrade for street, towing, and competition Cummins applications that demand reliable high-output fuel delivery.