Fleece Performance CP3 Conversion Kit with New Bosch CP3 for 2011-2016 GM 2500/3500 Duramax LML

Fits 2011-2016 Chevrolet Silverado and GMC Sierra 2500/3500 HD models equipped with the 6.6L LML Duramax engine.

Protect your LML Duramax from the risk of catastrophic fuel system failure with the Fleece Performance CP3 Conversion Kit (FPE-LML-CP3-WP). The factory-equipped CP4 high-pressure pump is prone to internal failure that can contaminate the entire fuel system with metal debris. This conversion replaces the CP4 with the more robust and reliable Bosch CP3 injection pump, providing both peace of mind and enhanced fueling capability without the need for specialized tuning.

This kit is a complete solution featuring a brand-new Bosch CP3 pump, Fleece-exclusive molded fuel hoses, and high-flow fittings. It also includes a valley feed line designed to support aftermarket lift pumps and filter applications. Engineered for a perfect fit and long-term durability, this system is 50-state emissions legal under CARB Executive Order D-834-1.

• Brand new Bosch CP3 high-pressure injection pump
• Fleece exclusive preformed molded fuel feed and return lines
• High-flow CP3 feed and return fuel fittings
• CP3-to-rail high-pressure fuel line and dosing injector feed line
• CP3 mounting adapter and required hardware kit
• Regulator extension harness and fuel temperature sensor mounting bracket
• 50-state compliant (CARB EO# D-834-1)
• Manufacturer Part Number: FPE-LML-CP3-WP