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Fleece CP3 Conversion Kit with CP3 for 2011-2016 LML Duramax


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Product Name: Fleece CP3 Conversion Kit with CP3 for 2011-2016 LML Duramax
Manufacturer: Fleece
Manufacturer Part #: FPE-LML-CP3-WP
Black Diamond Unlimited Part #: FPE-LML-CP3-WP
Fitment Notes: 2011-2016 LML Duramax

Convert your LML’s fuel system from a CP4 to a CP3. Improve your LML Duramax’s reliability and fueling capability with a CP3 conversion. Since its introduction, the CP4 has proven to be less reliable and less capable than the CP3 used in previous Duramax platforms.  Failures of the CP4 are extremely costly and require the replacement of the entire fuel system. Avoid a costly failure down the road and convert your CP4 to a CP3 with our complete, no-tuning required kit for the 2011-2016 LML Duramax platform. Our kits provide you with OEM quality components including a brand new Bosch CP3, Fleece exclusive molded hoses for the fuel feed and return, high flow CP3 fuel fittings, and our valley feed line to support aftermarket lift pump and filter applications.

Application Notes: No FCA regulator table changes are required when converting from the CP4 to a stock CP3 when using this kit.

* Patent Pending

Fleece CP3 Conversion Hardware Kit Features:

  • New Bosch CP3
  • High-flow CP3 feed and return fittings
  • Preformed feed and return fuel lines
  • 50-state compliant; EO# D-834-1

Kit Contents:

  • New Bosch CP3 high-pressure injection pump
  • CP3 to rail high-pressure fuel line
  • High-flow CP3 feed and return fuel fittings
  • Preformed feed and return fuel lines
  • CP3 mounting adapter
  • Dosing injector feed line
  • Regulator extension harness
  • Fuel temperature sensor mounting bracket
  • Low-pressure fuel feed lines
  • Hardware kit

2011, 2012, 2013, 2014, 2015, 2016


6.6 LML Duramax


Chevy, GMC


Sierra 2500 HD, Sierra 3500 HD, Silverado 2500 HD, Silverado 3500 HD

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