The XDP Fuel System Contamination Kit (Stock Replacement) XD517 is an all-inclusive kit that provides everything you need to get your 2011-2016 GM 6.6L Duramax LML back on the road. When the CP4 fuel injection pump fails in your Chevy/GMC, it often sends contaminants through the entire fuel system. This results in debris from the pump that can contaminate the fuel lines, fuel injector lines, and fuel rails, meaning you now have to replace all of the aforementioned parts. Simply flushing the fuel system doesn’t guarantee all the residual metal shavings or contaminants will be removed. This CP4 failure kit is a complete repair solution for your 6.6 Duramax engine with CP4 fuel pump failure, DEF contamination, or water-in-fuel contamination. This XDP Fuel System Contamination Kit (Stock Replacement) XD517 is built around a high-quality remanufactured CP4 pump and remanufactured stock replacement fuel injectors. This kit also includes a complete set of new fuel injector lines, feed pipe, return line, and fuel rails. Replacing these components will help ensure that all pump fragments are out of the fuel system, so you can be sure that the replacement fuel injectors and CP4 pump don't get contaminated from the previous pump failure. Features: (8) Fuel Injector Lines (1) Fuel Feed Line (1) Fuel Return Line (2) Genuine Bosch Fuel Rails (1) CP4 Pump Installation Kit With Fuel Line (8) Genuine Bosch Remanufactured Fuel Injectors (1) Genuine Bosch Remanufactured CP4 Fuel Injection Pump Applications: 2011-2016 Chevrolet Silverado 2500HD (6.6L Duramax LML) 2011-2016 Chevrolet Silverado 3500HD (6.6L Duramax LML) 2011-2016 GMC Sierra 2500HD (6.6L Duramax LML) 2011-2016 GMC Sierra 3500HD (6.6L Duramax LML)
