Of all the components used in this assembly the Pump Assy,engine Oil is the most expensive.
This part-list fiche shows all the components that make up the Gs500 2002 (k2) Usa (e03) Oil Filter - Oil Pump .
The most reasonably priced component used on the Gs500 2002 (k2) Usa (e03) Oil Filter - Oil Pump is the Stud 6x20.