Suzuki Motorcycle GW250 headlight bulbs utilize a 9003 size for both high beam and low beam functions. The replacement chart covers 2013 through 2017 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 is an ANSI-standard designation used in the United States and Canada for a dual-filament halogen bulb with a P43t base, rated at 12 volts with a 60-watt high beam filament and a 55-watt low beam filament.
The Suzuki Motorcycle GW250 uses the 9003 bulb for both its high beam and low beam headlight positions across the 2013-2017 model years covered in these specifications.
Because a single 9003 bulb serves both beam functions, the headlight assembly relies on one physical bulb to switch between the two filaments rather than housing separate bulbs for each function.
The P43t base is a bayonet-style fitting with a 43mm collar, and correct base compatibility is a required condition for physical installation in the headlight socket.
The 9003 designation is interchangeable with the HB2 designation, and bulbs sold under either label share the same electrical and physical specifications.
The dual-filament design means that a failure of one filament does not necessarily indicate failure of the other, though both functions are lost if the bulb is removed or the base connection fails.