Parts such as the E-12: Gear,low, Oil Seal 8x34x8, Gear Second Third, Washer,thrust are included in the Sl350 Japan E-12 parts fiche.
This schematic depicts all components used in the Sl350 Japan E-12 partslist.
The Set-ring, 25m/m is the most widely applied product in the SL350 JAPAN E-12 ( four times ).