Additional Images

CP4 Catastrophic Failure Replacement Kit with CP3 Conversion Kit (2011-2016)

Fits: 2011-2016 GM/Duramax LML
Was: $2,899.00
Sale: $2,474.00
Save: 15%
Save: $425.00

Customize Your Item

 * required
- LML High Pressure Fuel Line Opti -
- LML HP Fuel Line Rail/CP3 Option -
- Add CP3 Pump -
 * required
- Add Complete Gasket Kit -
 * required


The early CP4 pumps were prone to a "grenade effect type of failure. This effect spreads debris contamination throughout the entire fuel system. No amount of flushing and cleaning will restore your system to the original operating conditions. Replacing all your major fuel system components is the best way to prevent future recontamination problems.
We now have a kit that converts the CP4 to a CP3.
This kit contains all the major components you need, with options to add additional components.(see drop down)

All Parts are Genuine OEM parts and carry factory warranty.

Basic Kit Contains:

8-OEM Bosch REMAN LML Fuel Injectors #0 986 435 410
8-OEM Bosch NEW LML Fuel Injectors #0 445 117 010
1-Street CP3 Conversion Kit
1-Passenger Side Fuel Rail (RH)
1-Drivers Side Fuel Rail (LH)
1-Fuel Return Hose Assembly

Injectors have a special Core Price of $300.00, Fully refundable upon receipt of your cores

***No Core Charge for CP3 Pumps***

Additional Available Options

High Pressure Fuel Line Kit Option:

2-High Pressure Fuel lines #12670468 (1&8)
2-High Pressure Fuel lines #12670469 (3&6)
2-High Pressure Fuel lines #12670471 (4&5)
2-High Pressure Fuel lines #12670460 (2&7)

High Pressure Fuel Line to Rail to Rail Option:

1-HP Fuel line Fuel Rail to Fuel Rail #12670466

CP3 Pump Options:(See Drop Down)

Stock CP3
Recalibrated CP3 Pump (No DPF/No Tuning Required)
SuperStock Pump
10mm Stroker Pump
12mm Stroker Pump

Complete Catastrophic failure Gasket kit Available (See Drop Down)

*See drop down For All Options*

3 Year/Unlimited Mile Warranty



Shipping Information

  • Item Requires Shipping
  • 38.0 lbs.
  • W20.0000” x H13.0000” x L22.0000”

Customer Reviews

Comment Total Reviews (0)

Write the First Review!

You must login to post a review.

  • Ask the Diesel Experts
  • 920-361-7700 Mon-Fri: 8am - 5pm (CST)
    Sat-Sun: Closed