The lowest price component in this Crankshaft/piston(s) parts-list fiche is the Pin-dowel,4x8.
This schematic depicts all components used in the Kaf620-paf Mule4000 2010 Usa Crankshaft/piston(s) partslist.
The Crankshaft/piston(s) is made up of components including this Crankshaft-assy which is the most expensive.