This River City Diesel CPX Pump keeps the OEM, four pumps per engine revolution that the Chinese eccentric pumps do not. The OEM Bosch system is timed, and designed to pump to the bank that is requesting fuel (firing). This is to ensure peak nozzle pressure and less harmonics of high pressure fuel, having to cross over via the balance tube, from one rail to the other. Eccentric pumps will skip every other firing event. Two pumps per revolution vs the OEM four.
The CP4 pump Bosch should have built, the CPX.
• Pinned lifter buckets to prevent rotation and stop failures. Even during a gel.
• New feed port, preventing any contaminated crankcase debris from entering the plungers and barrels. (Built in disaster prevention kit)
• Direct drop-in replacement, no aftermarket fuel lines or components needed.
• No additional labor or modifications to install.
• 24 Month no questions asked replacement warranty.
All 2011 - 2023 RCD AA CPX AA CP4 pumps are modified internally in a 5 AXIS CNC to return fuel to the tank. This prevents debris from entering the injector in the instance of a failure. "DISASTER KITS" ARE NOT NEEDED!
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.