[Richard]

Doug,

They are used in five places that I had to disconnect and reconnect. At the bottom of the injector hole to seal the injector tip to the block, at the return fuel line connection of the injector itself, on the connection of the return line to the injector pump, on the fuel line into the injector pump, and on the oil supply line to the turbo.

https://www.amazon.com/Hose-Banjo-Fittin...jo+Fitting This is the idea, these are not parts for the generator, just a picture of a banjo bolt, and the washers used to seal it.

These are common on hydraulic systems and automotive brake systems.