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LML Duramax Cp4 Fuel Injection Pump Conversion

  • Retro-Fit your LML Duramax with a Cp4 to Cp3 Conversion Kit. 


  • Go Retro Cp4 to Cp3 Duramax Fuel Pump

  • No Tuning Needed

  • Our CP3 Conversion Kit is a drop-in replacement for the factory CP4 and will not cause check engine lights. No need to spend extra money on custom tuning or programmers, our kit works with the factory tuning. 

  • Easy Starting

    Unlike other companies CP3 conversion kits, our CP3 Conversion Kit has no start-ability issues. With our kit there is no need to prime the injectors before starting the truck after installation of injectors.

  • Emissions Friendly

    Our CP3 Conversion Kit has been designed to be used with all of the factory emissions equipment. There is no need remove or "delete" any of the EGR, or DPF systems. Your truck will run as if it was from the factory. 

  • Proven Reliability

    The CP3 fuel pump is proven to have longevity and to be reliable in performance applications. 

  • Remove the Worries

    The CP4 has known failure issues that cannot be remedied. These issues, if they occur, can cause damage to other major fuel system components. 

Industrial Injection Diesel Performance

Price at $1600.00 retail price 


Toxic Diesel Performance
866-488-6942





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