Fuel Tank Float Rubber

Hey all,
So I used some Evapo-Rust on my new to me SFV650 to clean up some tank rust.
Evapo-Rust does state this is safe on rubber and plastic so I left the fuel pump in.

Mostly went ok apart from the fact it has destroyed the O-Ring like part that holds the float to the fuel gauge assembly.

Does anyone know if I can buy this part separately?

Thanks all!