Suzuki Motorcycle GSX1100G headlight bulbs use 9003 size for both high and low beam functions. The replacement chart covers 1991 to 1993 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 on the Suzuki Motorcycle GSX1100G, covering model years 1991-1993.
The 9003 is a dual-filament halogen bulb, meaning a single bulb unit contains two separate filaments to serve both high and low beam functions independently.
Because the 9003 serves both the high beam and low beam positions on this motorcycle, both positions draw from the same bulb type and are physically interchangeable with one another.
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 9003 uses a P43t base, which is a standardized bayonet-style mount with a 43mm flange, governing physical fitment into the headlight housing.
The 9003 designation follows the ANSI standard applicable in the United States and Canada, distinguishing it from the functionally similar H4 bulb used under European standards, which shares the same dual-filament halogen design but carries a different designation.