Of all the components used in this assembly the Gasket Set (nas) is the most expensive.
The Cap(od:10) is the most widely applied product in the GS500E 1991 (M) (E01 E02 E04 E15 E16 E17 E21 E22 E24 E25 E34 E39 CYLINDER HEAD COVER ( six times ).
Some items from this specific schematic: Separator,oil Breather Cover, Gasket,breather Cover (nas), Bolt, Clamp.