MEP802A-MEP803A-MEP80x Fuel Tank Well Nut A3816

MEP802A-MEP803A Fuel Tank Well Nut A3816. This well nut is used on all MEP80x series fuel tanks for the return fuel line as well as the fuel drain location. So each tank requires 2 well nuts. Please see instruction leaflet below. It is helpful. Do NOT over-tighten well nut. Make sure all surfaces are clean and dry upon installation and no debris prevents a good seal. You can also use a thread sealer that is diesel-fuel compatible.

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