The Rear Cushion Lever (model K4/k5/k6) assembly is constructed from several parts from which the Rod Set,rr Cushion is the most expensive.
The Seal,oil(20x26x4.5) is the cheapest item from this partsfiche.
Some items from this specific schematic: Bearing(20x26x14), Lever Set,rr Cushion, Nut, Spacer,rr Cushion Lever Side.