twenty-eight components are listed in the schematic for this Nc50 1982 (c) E-5 Crankcase - Oil Pump .
Parts such as the E-5 Crankcase - Oil Pump: Bolt,flange 6x25, Oil Seal,24x40x7, Screw Cross 6x80, Gasket,crankcase (mca) are included in the Nc50 1982 (c) E-5 Crankcase - Oil Pump parts fiche.
Of all the components used in this assembly the Crankcase, L. is the most expensive.