S&S Diesel L5P Duramax CP3 Conversion Kit | 2017-2023 Chevy / GM Duramax L5P

The 2017-2023 Duramax L5P's CP4 injection pump is prone to failure, leading to costly fuel system repairs. Upgrade to S&S Diesel's high-performing CP3 conversion kit, designed to replace the troublesome factory HP4 pump. Available in 10mm, 12mm, and 14mm variations, each kit is equipped with the latest generation Bosch CP3NH pump, tailored to suit your performance needs. Whether you're looking for a more durable option for daily driving or you're pushing your truck to the limit in competitive scenarios, this kit delivers the power and reliability you demand.

• Reliable CP3 Injection Pump: Replaces the vulnerable CP4 pump with a proven CP3 pump.
• High-Performance Variants: Choose between the 10mm (1,325 mm³/rev up to 4,500 RPM), 12mm (1,590 mm³/rev up to 4,000 RPM), or 14mm (1,850 mm³/rev up to 3,500 RPM) stroke versions, depending on your needs.
• 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.

Please Note: Tuning required for installation. For competition use only. Not for sale in California.