Fits: 2011 thru 2016 Chevy Silverado/GMC Sierra 2500HD/3500HD LML Duramax Diesel

If your CP4 injection pump has failed and sent metal throughout your entire fuel system, you want to make sure you get all of those small metal particles out of the system. Some parts can be thoroughly cleaned and reused, but there are a lot of parts that should be replaced. Otherwise it may contaminate and destroy your new parts. DmaxStore put this complete kit together which includes over 35 of the necessary parts, gaskets, o-rings, and seals to do a CP4 system repair or CP3 conversion on these LML platforms. Combine this kit with our LML Injection Pump, Rail, & Injector Kit and you will have all the necessary parts to repair your CP4 failure.

Includes:

• Fuel Feed and Return Hoses/Pipes
• Fuel Pressure Regulator Vacuum Hose
• Fuel Pressure Service Valve O-Ring
• Fuel Injection Feed Manifold
• Fuel Vacuum Switch and Tube
• Fuel Filter Head Hoses
• EGR Valve Gaskets
  
• High Pressure Injector Fuel Feed Lines
  
• Intake Manifold Gaskets and Seals
• Oil Filler Tube O-Ring
  
• Turbo Inlet Gaskets/Seals
• Thermostat Housing Gaskets and O-Ring
  

Optional Parts:

• AirDog II-5G (165) - To keep your fuel free of contaminants and to provide positive pressure to the CP4 pump, the AirDog will keep your fuel system running.
  
• Racor Fuel Filter - Keep the dirty, contaminated fuel out of your truck by replacing with a Racor Fuel Filter.
• Dmax Fuel Filter Head Assembly - your current head assembly may have metal contaminants trapped inside.
• Indirect "9th" Injector - your current indirect injector may have metal contaminants trapped inside as well.
• Indirect Injector Fuel Feed Hose - If you are replacing with a CP4 you will need this part.
  

DmaxStore Notes:

• All other fuel system components which are not replaced, must be cleaned very thoroughly to make sure there is no metal left in the entire fuel system.
• Fuel filter and filter head assembly is recommended to be replaced as well, which is not included and OPTIONAL.
• This is also a good time to install an AirDog lift pump system if you do not already have one.