3A is correct for the fuse size. Yes, the filter and fuse is one integrated unit (fuse accessed through slide off cover). It's got "Autoleads" embossed in the plastic, but no part number...

Are these available in the US anywhere?
As well, does anyone know where an ISO plug can be purchased?

Thanks for everyone's help. Hopefully this thread will be valuable in the future to someone other than me.

Elon