Of all the components that make up this Headlamp (model W/x/y/k1/k2) the Bulb(12v5w) has the lowest price.
Of all the components used in this assembly the Headlamp Assembly is the most expensive.
A sample from the products for the Headlamp (model W/x/y/k1/k2) include: Screw, Washer(5.5x18x1), Screw, Nut.