The Oil Pump is made up of components including this Oil Pump Assy which is the most expensive.
The Spring, Compression (3y1) is the lowest priced item on this Oil Pump schematic.
Parts such as the Oil Pump: O-ring (706), Strainer, Oil, Gear, Pump Driven, Circlip(22k) are included in the Yfa1w Breeze 1989 Oil Pump parts fiche.