twenty components are listed in the schematic for this St1100 1991 (m) Usa California Alternator .
The lowest price component in this Alternator parts-list fiche is the Bolt,flange,8x30.
Some items from this specific schematic: Bolt,socket,6x28, Spg,acg Damper, O-ring,95.5x2.4, Case,a.c.generato.