With a quantity of two pieces, the Bulb(12v5w) is the most used part in the HEADLAMP diagram.
The fourteen Gsx1300bka Bking 2008 (k8) Usa (e03) Headlamp component parts are all listed in this schematic.
Some items from this specific schematic: Cord Assy, Washer(9x19x1.0), Washer(6.5x20x1.6), Cover,socket.