Login
My Account
My Cart
The site navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move across top level links and expand / close menus in sub levels. Up and Down arrows will open main level menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items.
Enter your truck info so we can recommend the right products for you.
Can't find it? Call us at 859-737-4966 for free advice.
Menu
Air Filters
Air Intakes
Clutches
Cooling System
Drive Line
Electronics
Engine
Engine Parts
Exhaust
Exhaust Brakes
Fabrication Components
Fluids
Fuel Systems
Fuel Tanks
Gauges
Injection Pumps
Injectors & Related Items
Intake Manifolds
Intercoolers
Lift Pumps
Programmers
Silicone Hoses
Suspension
Tools
Transmissions
Turbochargers
Water Meth Inj Kits
Thoroughbred Diesel has been your online performance headquarters since 2002. We know how to get the most performance out of your pickup truck and offer all of today's most popular diesel performance products.
Brakes
ECM
Electrical Components
Engine Components
Exterior Replacement Parts
Filters
Fuel Pumps
Gaskets & Seals
Interior Replacement Parts
Oil Pumps
Starters & Alternators
Thoroughbred Diesel offers OEM and diesel stock parts for your diesel pickup truck. At Thoroughbred Diesel, you can buy stock diesel replacement parts such as injectors, fuel pumps, ball joints, track bars, turbos, and more for your diesel truck.
Injection Pump
Injector
Turbo Charger
Batteries
Bed Covers
Bumpers
Fender Flares
Floor Mats and Liners
Grilles
Horns
Lighting
Mud Flaps
Nerf Bars
Running Boards
Seats & Covers
Shift Knobs
Spare Tire Carriers
Storage
Tailgate Nets
Tool Box
Truck Steps
Ventvisors
Wheels
Winches
Make heads turn with custom truck accessories from Thoroughbred Diesel.
Ball Mounts
Gooseneck & Fifth Wheel
Hitch Balls
Hitch Pins & Hitch Locks
Hitch Steps
Hitches
Loading Ramps
Shackles & Tow Hooks
Tow Brakes
Tow Mirrors
Towing Accessories
Weight Distributing Hitchs
Banners
Decals
Hats
Hoodies
License Plates
Shirts
Tank Tops
Show your support with a Thoroughbred Diesel t-shirt, sweatshirt, or sticker decal.
Thoroughbred Sku #: WCF100457
Year/Make/Model: {{year}} {{make.Name}} {{model.Name}} Edit
$3,895.00
2017 - 2021 Chevy Silverado 2500
2017 - 2021 Chevy Silverado 3500
2017 - 2021 GMC Sierra 2500
2017 - 2021 GMC Sierra 3500
2022 - 2022 Chevy 2500
2022 - 2022 Chevy 3500
2022 - 2022 GMC 2500
2022 - 2022 GMC 3500
2023 - 2023 Chevy Silverado 2500 HD
2023 - 2023 Chevy Silverado 3500 HD
2023 - 2023 GMC Sierra 2500 HD
2023 - 2023 GMC Sierra 3500 HD
Product Name: WC Fab CP3 Conversion Kit - 2017-2023 GM Duramax L5P, Includes Custom Duramax Tuner - 12mm CP3 Manufacturer: WC Fab Manufacturer Part #: WCF100457 Thoroughbred Diesel Part #: WCF100457 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.***
12mm (WCF100457)- Works best with our S472 and S476 kits with Duramax Tuner 100% over injectors and has been proven to reliably support over 1000 WHP in our regular cab shop truck.
NOTE: CUSTOM TUNING IS REQUIRED. This is a Racing Product for Competition use only.
Note:
WC Fab CP3 Conversion Kit - 2017-2023 GM Duramax L5P, Includes Custom Duramax Tuner Features: