Of all the components used in this assembly the Crankcase Assy,r is the most expensive.
Some items from this specific schematic: Screw,flat,6x12, Bearing,radial Ba, B/brg Rad N/com, Gasket,crank Case (nas).
This CRANKCASE assembly utilises four Bolt,flange,sh,6x40(s) - the highest specified component.