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Industrial Injection 436405 CP4 to CP3 Conversion Kit with 85% Over Dragon Fire Pump for 2011-2016 Duramax LML

(2011-2016 Chevrolet Silverado 2500 HD; 2011-2016 Chevrolet Silverado 3500 HD; 2011-2016 GMC Sierra 2500 HD; 2011-2016 GMC Sierra 3500 HD)

Manufacturer

Picture for manufacturer Industrial Injection

Part Number

436405
9 reviews
Sale Price

$2,860.97

Estimated ship date Tuesday, November 24

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

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Product Details

The Industrial Injection 436405 is a complete CP4 to CP3 conversion kit designed specifically for 2011-2016 6.6L LML Duramax engines. This kit replaces the failure-prone CP4.2 high-pressure fuel pump with a more robust CP3 pump, eliminating the catastrophic fuel system contamination risk associated with CP4 failures.

Key Features:

  • Includes 85% over Dragon Fire CP3 injection pump for significantly increased fuel flow capacity
  • Eliminates CP4.2 pump failure risk that can destroy entire fuel system
  • Complete bolt-on conversion kit with all necessary components for installation
  • Dragon Fire pump provides superior fuel delivery for modified and high-performance applications
  • Engineered specifically for LML Duramax platform compatibility
  • Requires custom tuning to optimize performance and fuel delivery

This conversion kit is ideal for Duramax owners looking to prevent expensive CP4 failures or those building higher-horsepower applications that demand increased fuel system capacity. The 85% oversized Dragon Fire pump delivers exceptional flow rates to support substantial power gains. Professional installation and ECM tuning are required for proper operation.

Products specifications

Fits

2011-2016 Chevrolet Silverado 2500 HD; 2011-2016 Chevrolet Silverado 3500 HD; 2011-2016 GMC Sierra 2500 HD; 2011-2016 GMC Sierra 3500 HD

Quick & easy.

very good thank you

Live inventory is a great feature. Easy ordering.

Easy and quick

Easy ordering great price

Decent shipping and definetly the lowest prices. Found a new grille for my truck 50 dollars lower than any other website.

I was able to place the order very quickly. Also, you had the parts in stock, and every other supplier I contacted would have had to special order the parts from the manufacturer. Thank you.

Thank you

Quick and easy

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