The most reasonably priced component used on the Gsf600su 1998 (w) Germany (e22) Seat (model T/v/w) is the Cushion.
A sample from the products for the Seat (model T/v/w) include: Band Assy,seat(black), Cushion, Seat Assy, Nut.
The Suzuki SEAT (MODEL T/V/W) has sixteen products enlisted in the schematic.