The Kawasaki ZX1100 GPZ uses 9003 bulb size for both high beam and low beam headlight applications. The replacement chart covers vehicle production spanning 1983 to 1997 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 Kawasaki ZX1100 GPZ uses the 9003 bulb for both the high beam and low beam headlight positions across all listed model years.
The 9003 is an ANSI-standard halogen bulb recognized in the United States and Canada, operating on a 12-volt system with a dual-filament design rated at 60 watts for high beam and 55 watts for low beam.
The P43t base is the mounting interface of the 9003 bulb, a standardized bayonet-style fitting that determines physical socket compatibility.
Because the 9003 serves both the high beam and low beam functions within a single bulb, the ZX1100 GPZ headlight assembly does not require separate bulbs for each lighting mode.
The 9003 bulb is interchangeable with the H4 bulb in terms of filament and voltage ratings, though the H4 designation follows the European ECE standard while the 9003 follows the ANSI standard; both share the P43t base.
The listed model years for the ZX1100 GPZ span 1983-1984 and 1995-1997, and the 9003 specification is consistent across all of them for both headlight positions.