On this parts fiche the Bolt is the most specified component.
Some items from this specific schematic: Seat Assembly,pillion (black), Cushion,seat(40x20x15), Band Assy,pillion Seat(black), Washer(6.5x20x1.6).
This part-list fiche shows all the components that make up the Vl1500 1999 (x) Seat .