With a quantity of four pieces, the O Ring(d:2.4,id:11.8) is the most used part in the OIL COOLER diagram.
The fifteen Gsx1300rz Hayabusa 2007 (k7) Usa (e03) Oil Cooler component parts are all listed in this schematic.
The Oil Cooler is made up of components including this Cooler Assy,oil which is the most expensive.