436402
industrial injection

Industrial Injection LML Duramax CP4 to CP3 Conversion Kit without CP3 Pump - 11-16 GM 6.6L Duramax LML - 436402

Thoroughbred Sku #: IIS436402
Manufacturer Sku #: 436402

Your Selected Vehicle Does Not Fit, Please Select a Vehicle

Select a Vehicle

Selected Vehicle

Year/Make/Model: {{year}} {{make.Name}} {{model.Name}} Edit

Item Options:

Prop 65:
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
Shipping Restrictions:
This part is NOT available to ship to the state of California.


$862.56

free-shipping-no-handling

Applications:

View All applications

VERIFY VEHICLE FIT

Product Details

Product Name: LML Duramax CP4 to CP3 Conversion Kit without CP3 Pump
Manufacturer: Industrial Injection
Manufacturer Part #: 436402
Thoroughbred Diesel Part #: IIS436402
Fitment Notes: 2011-2016 GM 6.6L Duramax LML

The Industrial Injection CP4 To CP3 Conversion Kit is a sure way to increase reliability and performance of the fuel system in your 2011-2015 GM 6.6L Duramax LML. Built as a drop-in replacement for your factory CP4, Industrial Injection designed this kit to work with all of your factory components. No need to spend even more on custom tuning, a programmer, or other modifications, because this kit works with factory components and will not cause any check engine lights.

Unlike other CP3 conversion kits on the market, the Industrial Injection has no start-ability issues. With this kit, there's no need to prime the injectors before starting the truck after installation of injectors. It's also emissions friendly! This CP3 Conversion Kit installs with all of the factory emissions equipment in place. There's no need to remove or "delete" any of the EGR or DPF systems on your truck. It will run as if it was from the factory.

Proven reliability! The factory installed CP4 has known failure issues that cannot be remedied. When these issues occur, they can cause damage to major components of your fuel system. The CP3 fuel pump has been proven to provide longevity and reliable performance.

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.


Reviews

  • HELLO I AM INTERESTED REPLACING THE CP4 TO A CP3 AFTER SEEING YOUR VIDEO I WILL NOT BE DOING THE WORK MYSLEF IM TO NEW TO THE DIESEL WORLD, WITH THAT SAID WILL YOUR CONVERSION KIT ALSO WORK WITH MY TRUCK WITH EGR AND DPF DELETE ON A H AND S TUNER? Thoroughbred Sku #: IIS436403-CRE PER THE ITEM IT STATES TUNE IS REQUIRED COULD YOU SPECIFY WHAT KIND OF TUNE I WOULD NEED ?

    CHRISTIAN | 4/30/2022

    Yes, https://www.thoroughbreddiesel.com/industrial-cp4-to-cp3-conversion-kit/, your tunes will have to be modified for the CP3. It has an LBZ FCA.

  • Does the kit with the factory fit pump require any tuning after installation or will it work with all factory settings?

    ty | 12/18/2021

    The kits on this page REQUIRE TUNING.