Parts such as the Crankcase - Cylinder: Gasket, Cylinder Head 1 (nas), Head, Cylinder 1, Cover, Cylinder Head 1, Screw, Oval Head (663) are included in the 40h/eh/eth 1987 Crankcase - Cylinder parts fiche.
The Screw, Oval Head (663) is the lowest priced item on this Crankcase - Cylinder schematic.
The Crankcase - Cylinder assembly is constructed from several parts from which the Crank Cylinder Assy is the most expensive.