The Kawasaki ZR-7S headlight bulb uses a 9003 size for both high beam and low beam applications. The replacement chart covers vehicle production spanning 2001 to 2003.
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 type specified across all headlight positions for the Kawasaki ZR-7S, covering both high beam and low beam functions for the 2001-2003 model years.
The 9003 is a dual-filament halogen bulb, meaning a single physical bulb contains two separate filaments: one rated at 60 watts for high beam output and one rated at 55 watts for low beam output.
Because the 9003 serves both the high beam and low beam positions on the ZR-7S, the same bulb part number applies to both headlight circuits, which is a direct consequence of its dual-filament design.
The 9003 operates on a 12-volt electrical system and uses a P43t base, a bayonet-style fitting that physically keys the bulb into its housing to ensure correct filament alignment.
The 9003 designation follows the ANSI standard applicable in the United States and Canada, distinguishing it from the functionally similar H4 bulb used in other markets, which shares the same dual-filament halogen design but carries a different designation under ECE regulations.
The P43t base of the 9003 is not universally interchangeable with other common halogen base types, such as the H7 or H11, which use different socket configurations and wattage ratings.