The factory CP4 pump is a known weak point and often fails in a catastrophic nature. As a result, debris from the CP4 failure typically contaminates the fuel injectors, fuel injector lines, fuel rails, and other fuel system plumbing. To repair the failed pump and eliminate the risk of contaminating the replacement parts, the previously mentioned components must then be replaced.
The XD518 kit includes remanufactured fuel injectors, a remanufactured CP4 pump, fuel injector lines, engine fuel feed pipe, fuel return line, fuel rails, and injector hold down bolts.
Each kit is designed to meet or exceed the OE specifications and comes backed by the XDP 1-year warranty. Get the XDP LGH Fuel Contamination Kit to get your Duramax back up and running after a CP4 failure.
