2001-2010 Duramax Master Filter Head Kit (10320)

Don't let the job of replacing the filter head for your Duramax engine intimidate you. This task involves replacing multiple parts, but with our Master Filter Head Kit, it's a breeze. Not only does the filter head hold the filter, it also serves as the primer for the fuel system's supply side and houses a fuel heater for those chilly days. Keep your fuel system strong and functional with this kit.

This all-in-one kit includes everything you need to replace common wear items on your fuel filter head. This kit is great for rebuilding a failed fuel filter head or to use as a maintenance/upgrade kit for preventative maintenance.

Part Number: 10320

• Comprehensive Kit
• OEM & Upgraded Parts

Includes:

• MA Aluminum Bleeder Screw
• Water In Fuel Plug
• OEM Replacement Fuel Filter
• Bottle Of MA Additive
• All Required Gaskets

On Duramax trucks, the injector pump sucks fuel from the tank, creating a vacuum from the fuel tank through the fuel lines and filter. The fuel is pressurized once it reaches the injection pump, to the high pressures needed for the fuel injectors. A failing fuel filter housing will start to leak fuel and allow air to enter. This is usually accompanied by the following symptoms:

• Fuel leaks at the fuel filter head
• Hard start conditions if the truck has been sitting for a few days
• Engine starts but immediately dies
• Engine will not start unless manually primed when parked on an incline

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