The Kawasaki ZZR 600 high beam and low beam headlight bulbs both utilize a 9003 bulb size specification. The replacement chart covers vehicle production years spanning 2003 to 2008.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Kawasaki ZZR 600 uses the 9003 bulb type across both its high beam and low beam headlight positions for the 2003-2008 model years.
The 9003 is an ANSI-standard designation used in the United States and Canada, making it the North American equivalent of what is internationally classified as the H4 bulb.
As a dual-filament halogen bulb, the 9003 houses two separate tungsten filaments within a single glass envelope, with one filament dedicated to high beam output and the other to low beam output.
The 9003 operates on a 12-volt electrical system and carries a wattage rating of 60W for the high beam filament and 55W for the low beam filament.
The bulb uses a P43t base, which is a bayonet-style mount with a 43mm collar, and this base type is a defining physical characteristic that governs socket compatibility.
Because both the high beam and low beam positions share the same 9003 specification across all listed years, a single bulb type serves the entire headlight assembly rather than requiring separate bulbs for each function.
The shared fitment across the full 2003-2008 range means that a 9003 bulb sourced for any one of those model years is physically and electrically interchangeable with the others.