The Crankcase assembly is constructed from several parts from which the Crank Case Set is the most expensive.
Some items from this specific schematic: Sensor Assy Speed, Bolt,flange 9x91, Bolt,flange,10x75, O Ring,18.1x3.6.
Of all the components that make up this Crankcase the Bolt,hex.,6x14 has the lowest price.