Some items from this specific schematic: Washer-plain-small,6m, Filter-assy-air, Bracket,air Cleaner, Tube,breather,14x20.
The Air Cleaner ('80 B1) is made up of components including this Filter-assy-air which is the most expensive.
The component with the lowest price in the AIR CLEANER ('80 B1) schematic is the Washer-plain-small,6m.