On this parts fiche the Lens, Flasher (red) is the most specified component.
The sub assemblies and components that make up this Flasher Lamp (xs750-2d) include this Front Flasher Lamp Assy (l.h), the most expensive part.
A sample from the products for the Flasher Lamp (xs750-2d) include: Bulb, Flasher (12v-32cp) (256-83311-70), Washer(6a1), Wire, Earth, Nut(6l2).