Parts such as the Oil Pump: Screw-pan-cros, Oil Seal-oil Pump Sht, Adjuster-cable, Gasket-oil Pump (mca) are included in the Kh100g8 1987 Usa Oil Pump parts fiche.
The most reasonably priced component used on the Kh100g8 1987 Usa Oil Pump is the Washer,6.1x12x1.
On this parts fiche the Gasket,6x12x10 (nas) is the most specified component.