2011-2016 Duramax LML Stock CP4 Injection Pumps

Fits

Restore the reliable performance of your 6.6L LML Duramax with a Dynomite Diesel Stock Replacement CP4 Injection Pump. These pumps are designed as direct drop-in replacements for the original equipment, ensuring your fuel system maintains factory-spec pressure and output. Whether you choose a brand-new pump to avoid core charges or a high-quality remanufactured unit for a budget-friendly repair, each pump is built to rigorous standards to provide the durability and fuel delivery your Duramax requires.

• Direct replacement for 2011-2016 LML Duramax engines
• Maintains factory stock power levels and fuel output
• Available in Brand New or Remanufactured conditions
• Precision engineered for long-term fuel system reliability
• 1-Year Warranty included on all units

• Condition Options: Choose between a Brand New unit (no core charge required) or a Remanufactured unit (refundable core charge applies).
• Fuel System Integrity: If your original CP4 has failed internally, it is critical to inspect and clean the entire fuel system (lines, rails, and injectors) to prevent immediate damage to the replacement pump.
• Direct Fit: No modifications or custom tuning are required for installation.