Industrial Injection 436404 CP4 to CP3 Conversion Kit w/ 42% Over Pump 11-16 6.6L GM Duramax LML
Proven Reliability
- The CP3 fuel pump is proven to have longevity and to be reliable in performance applications.
- The CP4 has known failure issues that cannot be remedied. These issues, if they occur, can cause damage to other major fuel system components.
- In order for this kit to function properly, it requires custom tuning, such as EFILive or EZ LYNK.
Product Information
Product Information
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Shipping & Returns

Industrial Injection 436404 CP4 to CP3 Conversion Kit w/ 42% Over Pump 11-16 6.6L GM Duramax LML
Industrial Injection 436404 CP4 to CP3 Conversion Kit w/ 42% Over Pump 11-16 6.6L GM Duramax LML
Proven Reliability
- The CP3 fuel pump is proven to have longevity and to be reliable in performance applications.
- The CP4 has known failure issues that cannot be remedied. These issues, if they occur, can cause damage to other major fuel system components.
- In order for this kit to function properly, it requires custom tuning, such as EFILive or EZ LYNK.
Original: $2,618.95
-70%$2,618.95
$785.68Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Proven Reliability
- The CP3 fuel pump is proven to have longevity and to be reliable in performance applications.
- The CP4 has known failure issues that cannot be remedied. These issues, if they occur, can cause damage to other major fuel system components.
- In order for this kit to function properly, it requires custom tuning, such as EFILive or EZ LYNK.






















