Parts such as the Radiator: Radiator Assy,water, Bolt, Bolt,fan Assy, Cap,radiator(1.1) are included in the Gsxr750 2005 (k5) Usa (e03) Radiator parts fiche.
The component with the lowest price in the RADIATOR schematic is the Spacer(6.5x10x12).
This RADIATOR assembly utilises three Bolt(6x25)(s) - the highest specified component.