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Value Buy Fleece Performance Emissions Compliant Cp3 Conversion Kit With Pump For 11-16 Lml Duramax Limited Time 60% Off [JmojfwXE]

$79.99 $255.99 -69%

Convert your 2011-2016 Duramax's fuel system from a CP4 to a CP3 high pressure pump and get performance and peace-of-mind. Since its introduction, the CP4 has proven to be less reliable and less capable than the CP3 used in previous Duramax platforms

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Value Buy Fleece Performance Emissions Compliant Cp3 Conversion Kit With Pump For 11-16 Lml Duramax Limited Time 60% Off [JmojfwXE]

Convert your 2011-2016 Duramax's fuel system from a CP4 to a CP3 high pressure pump and get performance and peace-of-mind. Since its introduction, the CP4 has proven to be less reliable and less capable than the CP3 used in previous Duramax platforms. Our newest kit includes all of the hardware necessary to replace the troublesome CP4 with a CP3 and requires no tuning changes and maintains all factory emissions controls.

Features:

  • Enables conversion from the CP4 system
  • More reliable performance than the CP4
  • All hardware included
  • No tuning required
  • Maintains factory emission controls

 

Included:

  • CP3 Pump
  • Billet CP3 Engine Block Adaptor
  • High Pressure Fuel Rail Line
  • Low Pressure Fuel Feed Line
  • Return Fuel Hose
  • CP3 Feed Hose
  • Fuel Rail Nut
  • (3) CP3 Block Adapter Bolts (Flange Head, M8x1.25x35mm)
  • CP3 Pump Fittings – 3/8”
  • CP3 Pump Fittings – 1/2"
  • (2) 12mm Sealing Washers

 

Fitment:

  • 2011-2016 6.6L LML Duramax

 

Note:

  • Direct Replacement

What Our Customers Say

January 18, 2026

Absolutely no complaints!

This is a very solid, extremely fine tool.

- Emilio B..

January 18, 2026

Absolutely no complaints!

An outstanding product. It is very well made.

- Nolan Y..

January 18, 2026

Absolutely no complaints!

A very useful tool that I use every day.

- Luca V..

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