Honda Motorcycle GL1100I Gold Wing Interstate headlight bulbs utilize a 9003 size for both high and low beam functions. The replacement chart covers 1980 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 across all headlight positions on the Honda Motorcycle GL1100I Gold Wing Interstate, covering model years 1980-1983.
The 9003 is a dual-filament halogen bulb, meaning a single unit contains both the high beam and low beam filaments within one housing.
This dual-filament design is the reason the 9003 serves both the high beam and low beam headlight positions on this motorcycle without requiring separate bulb types for each function.
The 9003 operates on a 12-volt electrical system and carries a wattage rating of 60W on the high beam filament and 55W on the low beam filament.
The bulb uses a P43t base, which is a bayonet-style mount with a 43mm collar, and fitment requires a housing designed specifically for this base type.
The 9003 designation follows the ANSI standard used in the United States and Canada, and substitution with bulbs conforming to other regional standards may result in base or wattage incompatibilities even when the outer profile is similar.