The most expensive part in this assembly is the Meter,speed (km/mph).
The Bulb(12v3.4w,t10,bf175-01450a) is the lowest priced item on this Speedometer - Tachometer schematic.
This Speedometer - Tachometer diagram displays the required parts for the Gn125e 1991 (m) Usa (e03) Speedometer - Tachometer.