Hey Richard. I've read up on this a bit, but haven't changed mine yet. It's probably good to get a spare gasket just in case. I think its more of a hassle than anything else as the tank has to be drained. The entire pump assembly comes out of the tank, and the fuel filter comes out with it.
I believe that there are equivalent filters available. I haven't dug into it that much. I imagine Triumph wants some good money for their filter.
HTH,
H.
