Of all the components used in this assembly the Oil Pump Assy is the most expensive.
Parts such as the Oil Pump ('71-'75): Ring-o,cap,banjo Side, Bolt-banjo, Lever-oil Pump Cable, Washer,5.5x10.5x0.8 are included in the Mt1 Minitrail 1971 Oil Pump ('71-'75) parts fiche.
The Kawasaki OIL PUMP ('71-'75) has twenty-one products enlisted in the schematic.