2001-2010 Duramax Stock CP3 Injection Pumps

Restore the reliable performance and factory fuel delivery of your 6.6L Duramax with a Dynomite Diesel Stock Replacement CP3 Injection Pump. Engineered to meet strict original-equipment specifications, these pumps deliver consistent, high-pressure fuel to maintain engine efficiency and power. Available for all major early-model Duramax platforms, including LB7, LLY, LBZ, and LMM, these pumps offer a direct-fit solution for trucks needing to replace a worn or failing high-pressure pump.

• Direct-fit OE replacement for 2001-2010 6.6L Duramax engines
• Maintains stock fuel output and factory horsepower levels
• Available in Brand New (No Core Charge) or high-quality Remanufactured options
• New units feature an extended 2-year unlimited-mile warranty
• Remanufactured units are built with OE-quality parts and include a 1-year warranty

• Select Your Variant: Please ensure you select the correct year range and engine code (LB7, LLY, LBZ, or LMM) to match your vehicle's specific fuel system requirements.
• Condition Details: Brand-new units offer the longest warranty and require no core charge. Remanufactured units require a refundable core charge.
• Installation Tip: When replacing a high-pressure pump, it is highly recommended to inspect your fuel filters and lines to ensure no debris contaminates the new unit.
• Emissions: LLY Remanufactured units (DDPCP3-308) are not for sale or use in the state of California.

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