Parts such as the Speedometer: Speedometer Assy, Bulb,(6v3w), Nut, Flange(55x), Socket Cord Assy are included in the Lc50h 1981 Usa Speedometer parts fiche.
The Nut, Flange(55x) is the lowest priced item on this Speedometer schematic.
With a quantity of four pieces, the Bulb,(6v3w) is the most used part in the SPEEDOMETER diagram.