This E-12 OIL PUMP assembly utilises two O-ring,14.6x3.6(s) - the highest specified component.
fourteen components are shown in this Cbx550f2 1983 (d) E-12 Oil Pump exploded diagram.
Some items from this specific schematic: Pump Assy.,oil, Gear,oil Pump Dri, Bolt,flange, 6x32, Strainer,oil.