WC Fab CP3 Conversion Kit - 17-23 Duramax L5P, Includes Custom Exergy - Sportman CP3

Thoroughbred Sku #: WCF100455

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This part is NOT available to ship to the state of California.


NOTE: These products are made to order and can experience extended lead times.


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Product Details

Product Name: WC Fab CP3 Conversion Kit - 2017-2023 GM Duramax L5P, Includes Custom Duramax Tuner - Sportman CP3
Manufacturer: WC Fab
Manufacturer Part #: WCF100455
Thoroughbred Diesel Part #: WCF100455
Fitment Notes: 2017-2023 GM Duramax L5P

These kits are the perfect solution for trucks with bigger turbo kits and injectors that have reached the limits of the stock HP4 pump and are in search of more power.

***Requires use of an aftermarket low pressure / CP3 compatible lift pump. Not compatible with OEM L5P in-tank pump or high pressure lift pumps designed for use with HP4 injection pumps.***

Sportman (WCF100455)- A great choice for trucks looking to replace a failed HP4, or applications with stock injectors or Duramax Tuner 30% over modified units being used with stock or drop in VGT charger setups or our S364.5 or S369 Drop in Fixed Vane Turbo Kits. With proper tuning this pump will support equivalent power levels to the HP4, up to 750 HP to the wheels. 

NOTE: CUSTOM TUNING IS REQUIRED. This is a Racing Product for Competition use only. 


  • Anything powder coated will have a lead time of 15-25 days.
  • Non powder coated products will have a 2-3 day lead time.

WC Fab CP3 Conversion Kit - 2017-2023 GM Duramax L5P, Includes Custom Duramax Tuner Features:

  • Your Choice of Custom Duramax Tuner Sportsman CP3 pump specific to this kit
  • Billet Aluminum, Black Anodized CP3 Pump Mount Plate
  • High Pressure Fuel Line
  • High Pressure Rail Fitting
  • Fuel line and Clamps
  • Stainless CP3 Barb Fitting
  • Stainless Hardware
  • For more information on WC Fab call us at 1-859-737-4966.


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