The Oil Filter/oil Pump is made up of components including this Pump Assy,oil which is the most expensive.
On this parts fiche the O-ring,14.7x3.7 is the most specified component.
Parts such as the Oil Filter/oil Pump: Pkg Oil Strainer (nas), Vlv Assy,relief, Bolt Hex,6x16, Pipe,oil are included in the Vt1100c2 Shadow 2003 (3) Australia Oil Filter/oil Pump parts fiche.