The most expensive part in this assembly is the Seat Comp.*type4*.
A sample from the products for the Seat include: Bolt,socket,8x50, Seat Comp.*type4*, Grip,r.pas*type2*, Grip,l.pas*type2*.
This Seat diagram displays the required parts for the Gl1500i Goldwing Interstate 1991 (m) Usa California Seat.