The Kawasaki BN125 Eliminator headlight bulb uses a 9003 size for both high and low beam functions. The replacement chart covers 2001 through 2009 production 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 listed across all headlight positions in these specifications, appearing in both the high beam and low beam roles for the Kawasaki BN125 Eliminator across the 2001-2009 model years.
The 9003 is a dual-filament halogen bulb, meaning a single physical bulb contains two separate filaments, one rated at 60W for high beam output and one at 55W for low beam output.
Because both the high beam and low beam positions share the same 9003 bulb type, the BN125 Eliminator uses a single-bulb headlight housing where both beam functions are served by one unit rather than two separate bulbs.
The 9003 operates on a 12V electrical system, which is consistent with standard motorcycle electrical architecture.
The 9003 uses a P43t base, a bayonet-style mount with a 43mm collar, which physically determines fitment and is not interchangeable with bulbs carrying different base types even if wattage ratings are similar.
The 9003 designation is an ANSI standard recognized in the United States and Canada. It is functionally equivalent to the European H4 bulb, though the designations originate from different standardization bodies and packaging may differ by market.