The most reasonably priced component used on the Tw200c Trailway 1991 (m) California Air Filter is the Bolt.
Some items from this specific schematic: Screw, Tapping(51y), Duct, Bolt, With Washer (5r2), Guide.
The twenty Tw200c Trailway 1991 (m) California Air Filter component parts are all listed in this schematic.