Honda Motorcycle CMX300 Rebel 300 uses a 9003 bulb size for both high beam and low beam headlight applications. The replacement chart covers vehicle production years spanning 2017 to 2019 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 for the Honda Motorcycle CMX300 Rebel 300, covering both the high beam and low beam headlight positions across the 2017-2019 model years.
The 9003 is a dual-filament halogen bulb, meaning a single bulb unit contains two separate filaments: one rated at 60W for high beam output and one rated at 55W for low beam output.
Because both the high beam and low beam positions share the same 9003 specification, a single bulb type serves the entire headlight assembly rather than requiring separate bulbs for each function.
The 9003 operates on a 12V electrical system, which is standard for motorcycle applications in this class.
The 9003 uses a P43t base, which is a bayonet-style mount with a 43mm flange. This base type is specific to the 9003 and its international equivalent, the H4, and is not interchangeable with single-filament bases such as those found on 9005 or 9006 bulbs.
The 9003 designation is the ANSI standard used in the United States and Canada. The H4 is its functionally equivalent counterpart under European ECE standards, sharing the same dual-filament design, wattage ratings, and P43t base, though the designations differ by market.