The RCD CPX Fuel Injection Pump Kit is engineered specifically for 2011–2019 Ford 6.7L Power Stroke owners seeking greater reliability and performance from their CP4-based systems. With a 10% fuel delivery increase—supporting up to 650+ RWHP—it delivers superior pressure stability and flow consistency across the entire RPM range, ideal for street, tow, or performance builds.
Developed by River City Diesel, the CPX corrects the OEM CP4’s internal lifter rotation weakness by enhancing roller retention and fluid film lubrication between cam and lifter surfaces, preventing metal contamination failures. The result is a cleaner, more durable, high-performance pump designed to outlast factory CP4s while maintaining compatibility with stock fueling hardware and OEM calibration.
Ideal for drivers who demand dependable fueling performance under heavy load or tuning upgrades—the CPX delivers the reliability Bosch never did.
