The Gasket(14x20x1.5) (nas) is the most widely applied product in the GS500F 2006 (K6) USA (E03) OIL COOLER (GS500F) ( four times ).
Of all the components used in this assembly the Cooler Assy,oil is the most expensive.
Check out any of the seventeen Oil Cooler (gs500f) components enlisted.