The Kawasaki KZ1300 headlight bulb utilizes a 9003 size for both high beam and low beam functions. The replacement chart covers vehicle production spanning 1979 to 1982.
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 specified fitment for both the high beam and low beam headlight positions on the Kawasaki KZ1300 across the 1979-1982 model years.
The 9003 is a dual-filament halogen bulb, meaning a single bulb unit contains separate filaments for both high and low beam output, which accounts for its use across both headlight positions in these specifications.
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, a bayonet-style mounting base that physically determines fitment compatibility and is not interchangeable with bulbs carrying different base types.
The 9003 designation follows the ANSI standard applicable in the United States and Canada. It is functionally equivalent to the H4 bulb used under international standards, though the designations originate from different standardization bodies.