The lowest price component in this Transmission parts-list fiche is the Screw Pan Head.
A sample from the products for the Transmission include: Gear, 2nd Wheel, Gear, 4th Wheel, Washer Plate 132172160000, Bolt(2lt).
The twenty-nine Tzr125 1990 3pc2 England 203pc-310e1 Transmission component parts are all listed in this schematic.