fourteen components are shown in this Lt500r Quad Racer 1989 (k) Usa (e03) Quadracer Quad-racer Tail Lamp exploded diagram.
A sample from the products for the Tail Lamp include: Cushion,rr Combination, Washer, Nut, Lamp Assembly,rear Combination.
In this schematic the "Screw" is used most often.