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4L King CP-Series Main Bearings Set (MB5736CP)
As with all our nozzles once we've EDM'ed them to size
7L P1 4" Downpipe Back Exhaust - No Muffler (C6292SLM)
L5P | Can Bus Harness
*Or a 37" with additional fender and front bumper clearance required
2011-2016 Duramax LML Return Fuel Pressure Test Port (FPE-FPTP-GM-1116) L86 4L King CP-Series Main BearingsThe return fuel pressure test port for the 2011 2016 LML Duramax is designed to aid the technician in troubleshooting return fuel pressure, often necessary when diagnosing CP4 pump failures. When installed in the return fuel system, it allows for a pressure gauge to be connected to the return return fuel side to monitor pressure. Fits: 2011 2016 LML Duramax