Honda Motorcycle FT500 Ascot headlight bulbs utilize a 9003 size for both high and low beam functions. The replacement chart covers 1982 to 1983 production years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Honda Motorcycle FT500 Ascot uses the 9003 bulb for both high beam and low beam headlight positions across the 1982-1983 model years.
The 9003 is an ANSI-standard bulb recognized in the United States and Canada, operating on a 12-volt system with a dual-filament halogen design rated at 60 watts for high beam and 55 watts for low beam.
A P43t base is the mounting interface for the 9003 bulb, a bayonet-style base type that is standard for this bulb classification.
Because the same 9003 bulb serves both the high beam and low beam positions, a single bulb type handles both lighting functions through its two separate filaments rather than requiring two distinct bulb types.
The shared specification across both model years and both beam positions means the 9003 is the sole headlight bulb type listed for the FT500 Ascot.