AFC banjo bolt washer....
 

Lost one of the rubber/plastic washers on the damn banjo fitting to the AFC.....now where do you get a replacement for that?

I would look at a hardware store.

:argh: Dealer has them. same part for many year models. they are not high priced either.

What are they made of?

I picked up two new washers from a local cummins shop when I had to order a new banjo bolt