Fleece Performance FPE-LML-CP3-WP CP3 Conversion Kit with Bosch CP3 Pump for 2011-2016 LML Duramax

The Fleece Performance FPE-LML-CP3-WP is a complete CP4 to CP3 fuel system conversion kit engineered to improve reliability and fueling capability in 2011-2016 LML Duramax engines. Since its introduction, the CP4 injection pump has proven to be less reliable and less capable than the CP3 used in previous Duramax platforms. When a CP4 fails, it often contaminates the entire fuel system, resulting in extremely costly repairs that can require replacement of injectors, fuel lines, and related components.

This comprehensive conversion kit eliminates the problematic CP4 pump by replacing it with a proven Bosch CP3 high-pressure injection pump. The kit includes everything needed for a complete installation with no tuning required, making it a straightforward reliability upgrade for LML owners. All components feature OEM-quality construction, including Fleece's exclusive preformed molded fuel hoses that ensure proper fitment and leak-free operation.

Key Features:

• Brand new Bosch CP3 high-pressure injection pump
• No tuning required for installation
• High-flow CP3 feed and return fuel fittings
• Fleece exclusive preformed fuel feed and return lines
• Valley feed line supports aftermarket lift pump and filter applications
• 50-state compliant with CARB EO D834-1 certification
• Designed for use with or without aftermarket lift pumps (optimal feed pressure should not exceed 11 psi)

Complete Kit Contents:

• New Bosch CP3 high-pressure injection pump
• CP3 to rail high-pressure fuel line
• High-flow CP3 feed and return fuel fittings
• Preformed feed and return fuel lines
• CP3 mounting adapter
• Dosing injector feed line
• FCA (Fuel Control Actuator) extension harness
• Fuel temperature sensor mounting bracket
• Low-pressure fuel feed lines
• Complete hardware kit
• Fuel line quick disconnect tool

Installation time is estimated at 10-14 hours. This kit provides a permanent solution to CP4 reliability concerns while maintaining emissions compliance and requires no custom tuning or programming.