Emissions Compliant 2011-2016 LML CP3 Conversion Kit Fleece Performance


Regular price $0.00 Save $0.00
0 in stock

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 Inclueds:

  • 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 - 0.375 inch
  • CP3 Pump Fittings - 0.5 inch
  • (2) 12mm Sealing Washers


  • Fits 2011-2016 LML Duramax
  • Engine Manufacturer Chevrolet
  • Engine Duramax
  • Engine Code LML
  • Engine Years 2011-2016
  • Sold As Kit
  • Liter 5.9 Liter
  • Fule Pump CP3
  • Flange Head M8x1.25x35 mm
  • CP3 Pump Fitting Size 0.375 inch|0.5 inch
  • Sealing Washers 12 mm