Duramax 6.6L LML Fuel Contamination Kit 11-16 GM 6.6L Duramax LML XD517 XDP


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XDP Xtreme Diesel Performance SKU: XD517

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The XDP Duramax 6.6L LML Fuel Contamination Kit 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 injection pump fails in your truck, 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.

This kit includes a comprehensive list of parts you need to replace when the CP4 injection pump fails and contaminates the fuel system on your LML Duramax engine.

This XDP Fuel Contamination Kit XD517 is built around a remanufactured CP4 pump, and remanufactured stock replacement fuel injectors. This kit also includes a complete set of fuel injector lines, feed pipe, return line, fuel rails, and a set of injector hold down bolts.

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.


  • (2) Fuel Rails
  • (8) Injector Lines
  • (1) Fuel Feed Line
  • (1) Fuel Return Line
  • (8) Hold Down Bolts
  • (8) Remanufactured Injectors
  • (1) Pump Installation Kit With Fuel Line
  • (1) Remanufactured CP4 Injection Pump