Take the unreliable CP4 out of your 2011-2016 GM 6.6L Duramax LML and replace it with a CP3 using the Fleece FPE-LML-CP3-FF-EO Emissions Compliant CP3 Conversion Kit. This CP3 conversion kit includes a CP3 pump, billet CP3 engine block adapter, high & low-pressure fuel rail lines, feed & return hoses, and all the necessary hardware needed for installation. This kit makes installation as simple as possible as it requires no custom tuning for installation and maintains all factory emissions components.
CP3 Injection Pump
Billet CP3 Engine Block Adaptor
CP3 Feed Hose & Return Fuel Hose
High & Low-Pressure Fuel Rail Lines