The Crankcase assembly is constructed from several parts from which the Crankcase Assy is the most expensive.
This schematic depicts all components used in the Vzr1800z Boulevard M109r 2012 (l2) Usa Calif Canad (e03 E33 E28) Crankcase partslist.
The lowest price component in this Crankcase parts-list fiche is the Gasket(8.2x14x1) (nas).