Honda Motorcycle CMX500 Rebel 500 uses a 9003 bulb size for both high beam and low beam headlight applications. The replacement chart covers 2017 through 2019 production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 9003 bulb is the sole bulb type specified across all headlight positions for the Honda Motorcycle CMX500 Rebel 500, covering both high beam and low beam functions for the 2017-2019 model years.
The 9003 is a dual-filament halogen bulb, meaning a single physical bulb contains two separate filaments: one rated at 60 watts for high beam output and one rated at 55 watts for low beam output.
Because the 9003 serves both the high beam and low beam positions in this application, the same bulb unit handles the full headlight function rather than requiring separate single-filament bulbs for each mode.
The 9003 operates on a 12-volt electrical system, which is standard for motorcycles of this type.
The 9003 uses a P43t base, a standardized bayonet-style fitting that determines physical compatibility with the headlight housing socket.
The 9003 designation follows the ANSI standard used in the United States and Canada, distinguishing it from the functionally similar H4 bulb used in other markets, which shares the same dual-filament design but uses a different base designation recognized under European standards.