The most reasonably priced component used on the Cm450e 1982 (c) Usa Lower Crankcase is the Washer,plug Drain 14.
This LOWER CRANKCASE assembly utilises four Bolt,flange, 6x32(s) - the highest specified component.
The Lower Crankcase assembly is constructed from several parts from which the Crankcase (lower) is the most expensive.