The lowest price component in this Oil Pump parts-list fiche is the Plug, Straight Screw (22f).
Parts such as the Oil Pump: Strainer, Oil, Gear, Pump Driven, Rotary Filter Assy, Gasket, Pump Cover (nas) are included in the T50 1986 2fm England 262fm-310e1 Oil Pump parts fiche.
Check out any of the nine Oil Pump components enlisted.