industrial-436401
industrial injection

Industrial Injection LML Duramax CP4 to CP3 Conversion Kit with Pump Factory Fit - 11-16 GM Duramax

Thoroughbred Sku #: IIS436401-CRE

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.


PAYMENT NOTE: If you choose Pay Core Later, from the Core option below, you will not be able to pay for this order using Affirm or PayPal

$1,999.00

free-shipping-no-handling

core learn more button I have read and I accept the terms and conditions.

Applications:

View All applications

VERIFY VEHICLE FIT

Product Details

Product Name: Industrial Injection LML Duramax CP4 to CP3 Conversion Kit with Pump Factory Fit
Manufacturer: Industrial Injection
Manufacturer Part #: 436401
Thoroughbred Diesel Part #: IIS436401
Fitment Notes: 2011-2016 GM Duramax

This kit is designed to work with factory OE trucks without tuning and modifications.

No Tuning Needed
Industrial Injection CP3 Conversion Kit is a direct 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. 

Emissions Compliant
Industrial Injection CP3 Conversion Kit has been designed to be used with all of the factory emissions equipment.  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 LML Duramax CP4 to CP3 Conversion Kit Features:

  • No Tuning Needed
  • Emissions Compliant
  • Proven Reliability
  • Remove the Worries
  • For more information on Industrial Injection call us at 1-859-737-4966.

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.