Are you looking to bulletproof your fuel system and avoid possible injection pump problems? The CP3 Conversion Kit is built for Duramax owners who don't want to gamble on the factory CP4 pump. Known for its potential for catastrophic failure, the CP4 can take your entire fuel system down with it, costing thousands in repairs. This kit replaces it with the proven CP3 platform, giving you a more reliable, more capable fuel system that's trusted in high-performance and heavy-use applications. Whether you're towing, daily driving, or building for power, this conversion gives you peace of mind and better fuel economy. It's not just a reliability upgrade; it's a foundation for performance, durability, and long-term confidence in your truck.

This kit is designed as a complete conversion solution, including the components needed to properly swap the factory CP4 for a CP3 pump on the L5P platform. It's engineered for proper fitment, fuel routing, and system compatibility to ensure a clean, OEM-style installation.

Built with high-quality fuel system components, the kit is designed to handle high pressure, constant fuel flow, and demanding diesel conditions without failure. Precision-machined fittings, durable lines, and properly engineered mounting hardware ensure long-term reliability and leak-free performance. Depending on the configuration, the kit includes a high-performance CP3 pump, giving you flexibility based on your power goals, whether you're staying close to stock or pushing higher horsepower levels.