Of all the components used in this assembly the Primer Pump Assy is the most expensive.
Parts such as the Piping: Hose (8a5), Clip (8j7), Band, Primer Pump Assy are included in the Sl338f 1974 Piping parts fiche.
The most reasonably priced component used on the Sl338f 1974 Piping is the Clip (806-24356-00).