twenty-five components are listed in the schematic for this Tl1000r 2003 (k3) Usa (e03) Cowling Body Installation Parts .
In this schematic the "Nut,headlamp Housing,upper" is used most often.
The most reasonably priced component used on the Tl1000r 2003 (k3) Usa (e03) Cowling Body Installation Parts is the Nut.