The Honda Motorcycle CB750SC Nighthawk headlight bulb uses 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 9003 bulb is the sole bulb type specified for the Honda Motorcycle CB750SC Nighthawk, covering both the high beam and low beam headlight positions across the 1982-1983 model years.
The 9003 is a dual-filament halogen bulb, meaning a single bulb unit contains two separate filaments: one rated at 60 watts for the high beam and one rated at 55 watts for the low beam.
The 9003 operates on a 12-volt electrical system, which is standard for motorcycles of this type.
The bulb uses a P43t base, a bayonet-style fitting with a 43mm flange that locates and locks the bulb into the headlight housing.
The 9003 designation follows the ANSI standard, applicable in the United States and Canada. This standard defines the bulb's electrical and photometric performance requirements.
Because the 9003 serves both the high beam and low beam positions on the CB750SC Nighthawk, a single replacement bulb type addresses both functions rather than requiring separate bulbs for each.