
- Reliable CP3 Injection Pump: Replaces the vulnerable CP4 pump with a proven CP3 pump.
- OE Quality Quick Connecting Supply Line: Ensures a seamless and secure connection for the fuel supply.
- High-Pressure Fuel Line: Delivers fuel efficiently to the injectors, supporting optimal engine performance.
- Injection Molded ECU Mount: Provides a stable and secure mounting solution for the ECU.

The 2017-2023 Duramax L5P's CP4 injection pump is prone to failure, leading to costly fuel system repairs. S&S Diesel's CP3 Conversion Kit with a 10mm Pump offers a durable solution by replacing the CP4 pump with a robust Bosch CP3 pump. The CP3 pump is designed to handle high pressures and demanding conditions, making it ideal for those seeking enhanced performance and reliability.
Reliable CP3 Injection Pump: Replaces the vulnerable CP4 pump with a proven CP3 pump.
OE Quality Quick Connecting Supply Line: Ensures a seamless and secure connection for the fuel supply.
High-Pressure Fuel Line: Delivers fuel efficiently to the injectors, supporting optimal engine performance.
Injection Molded ECU Mount: Provides a stable and secure mounting solution for the ECU.
By choosing S&S Diesel's CP3 Conversion Kit, you can upgrade your Duramax L5P's fuel system, enhancing its durability, reliability, and overall performance.
Note: Competition use only, ECM Calibration Required[...]
- Reliable CP3 Injection Pump: Replaces the vulnerable CP4 pump with a proven CP3 pump.
- OE Quality Quick Connecting Supply Line: Ensures a seamless and secure connection for the fuel supply.
- High-Pressure Fuel Line: Delivers fuel efficiently to the injectors, supporting optimal engine performance.
- Injection Molded ECU Mount: Provides a stable and secure mounting solution for the ECU.