The Bulb(12v5w) is the cheapest item from this partsfiche.
The Gsxr600 1997 (v) (e02 E04 E18 E22 E24 E25 E34 E39) Headlamp (e4, E18, E22, E25, E34, E39) consists of seventeen pieces with the Headlamp Assy being the most expensive.
A sample from the products for the Headlamp (e4, E18, E22, E25, E34, E39) include: Nut, Reflector,reflex Fr, Headlamp Assy, Cover,socket.