Parts such as the Seat (vl800t E33): Bracket,seat, Nut, Cushion,seat(40x20x15), Cushion(11.5x22x20) are included in the Vl800 Boulevard C50 2012 (l2) Usa California Canad (e03 E33 E28) Seat (vl800t E33) parts fiche.
Of all the components used in this assembly the Seat Assy is the most expensive.
The component with the lowest price in the SEAT (VL800T E33) schematic is the Washer(6.5x20x1.6).