The Yamaha FZS1000 FZ1 uses a 9003 bulb size for both high beam and low beam headlight applications. The replacement chart covers vehicle production years spanning 2001 to 2015 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 Yamaha FZS1000 FZ1 uses the 9003 bulb size for both the high beam and low beam headlight positions across the full 2001-2015 model range.
The 9003 is an ANSI-standardized bulb designation recognized in the United States and Canada, making it a regionally specific classification rather than a universal international standard.
The 9003 is a dual-filament halogen bulb, meaning a single unit contains two separate filaments that serve both the high beam and low beam functions within one housing.
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 9003 uses a P43t base, which is a bayonet-style mount with a 43mm flange. This base type determines physical fitment into the headlight housing and is not interchangeable with bulbs using different base configurations.
The 9003 bulb is functionally equivalent to the H4 bulb, which shares the same dual-filament design, wattage ratings, and P43t base. The two designations differ only in their regional classification systems, with H4 being the ECE standard used outside North America.
Because the same 9003 bulb serves both the high beam and low beam positions, the FZS1000 FZ1 headlight assembly relies on a single bulb per housing rather than separate bulbs for each beam function.