Fleece CP3 Conversion Kit with CP3 FPE-LML-CP3-WP

FPE-LML-CP3-WP CP3 Conversion Kit for 2011-2016 LML Duramax

The Fleece CP3 Conversion Kit with CP3 FPE-LML-CP3-WP upgrades your fuel system for improved reliability. The factory CP4 pump has known issues and can lead to costly failures. This kit allows you to convert to a proven CP3 system and avoid those risks.

The FPE-LML-CP3-WP includes a brand new Bosch CP3 pump along with complete installation hardware. In addition, it delivers an OEM-style fit and finish for a clean installation. This system is designed to improve fueling capability while maintaining proper operation.

Improved Reliability and Fueling Performance

Switching from a CP4 to a CP3 helps improve long-term durability. The CP3 design has proven to be more reliable across Duramax platforms. Therefore, this conversion helps reduce the risk of fuel system failure.

This kit also improves fueling capability. As a result, your engine can maintain consistent performance under load. It supports both stock and upgraded fuel system setups.

Complete Kit with OEM-Style Fitment

This conversion kit includes all necessary components for installation. It features preformed fuel feed and return hoses for proper routing. In addition, high-flow fittings help improve fuel delivery.

The system includes a CP3 mounting adapter and high-pressure fuel line. It also includes a dosing injector distribution block and extension harness. These components work together for a complete installation.

Designed for Flexible Fuel System Setups

This kit is designed for use with or without a lift pump. For optimal performance, lift pump pressure should not exceed 11 psi. This helps maintain proper fuel delivery and system function.

No tuning is required for installation. As a result, the conversion can be completed without additional calibration changes.

Key Features

Includes brand new Bosch CP3 pump
Converts CP4 system to CP3
High-flow CP3 feed and return fittings
Preformed fuel feed and return hoses
CP3 mounting adapter included
CP3 to rail high-pressure fuel line
Dosing injector distribution block and lines
FCA extension harness included
No tuning required
Compatible with or without lift pump
CARB EO# D-834-1 for 50-state compliance

Built for Reliable Fuel System Performance

The Fleece CP3 Conversion Kit with CP3 FPE-LML-CP3-WP provides a complete solution for improving fuel system reliability. It replaces the factory CP4 with a proven CP3 design. This upgrade helps protect your Duramax while supporting consistent performance.

Explore more Duramax performance parts here.