FLEECE 2011-2016 LML CP3 Conversion Kit

Convert your 2011-2016 Duramax's fuel system from a CP4 to a CP3 high pressure pump and get performance and piece-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.



Kit Includes:

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