Parts such as the Fuel System: Fuel Pipe Joint Comp. 1, Screw, Pan Head, Washer, Plain (646), Clip, Pipe 6162435600 are included in the 70trp 1991 Fuel System parts fiche.
The Fuel System is made up of components including this Filter Assy which is the most expensive.
The Washer, Plain (646) is the lowest priced item on this Fuel System schematic.