On this parts fiche the Bolt(9x95) is the most specified component.
The Crankcase is made up of components including this Crankcase Set which is the most expensive.
A sample from the products for the Crankcase include: Bolt(9x80), Bearing,crank Thrust(green), Bearing,crank Thrust(black), Gasket(10.2x20x2).3 (nas).