A sample from the products for the Headlamp (model T/v) include: Bulb(12v60/55w,h4), Bracket,fr Side Rr,r, Headlamp Assy, Cover,socket.
In this schematic the "Washer(5.5x16x1.2)" is used most often.
The lowest price component in this Headlamp (model T/v) parts-list fiche is the Bulb(12v3.4w,stanley,a72a).