The lowest price component in this Filter-oil Pump parts-list fiche is the Gasket(12.1x16.2x3.7) (nas).
The Suzuki FILTER-OIL PUMP has thirty products enlisted in the schematic.
With all the components that make up the GS450GA 1985 (F) USA (E03) FILTER-OIL PUMP assembly. The Bolt 6x30 is the most frequently specified with twelve applications.