Return Fuel Pressure Test Port for 2011-2016 LML Duramax Fleece Performance MERCHANT AUTOMOTIVE Rev up your style and

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Pre-formed hose and hose clamps

Replaced Rail Connections/Thru-Rod/Nuts/Belleville Washers

Return Fuel Pressure Test Port for 2011-2016 LML Duramax Fleece Performance MERCHANT AUTOMOTIVE Rev up your style andThe 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