The Yamaha FZ8 headlight bulb uses a 9003 size for both high beam and low beam applications. The replacement chart covers vehicle production spanning 2011 to 2013.
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 bulb type specified across all headlight positions for the Yamaha FZ8, covering both high beam and low beam functions for the 2011-2013 model years.
The 9003 is a dual-filament halogen bulb, meaning a single bulb contains two separate filaments: one rated at 60W for high beam output and one rated at 55W for low beam output.
Because the 9003 serves both the high beam and low beam positions, the same physical bulb is installed in each socket, with the appropriate filament activated by the vehicle's lighting circuit.
The 9003 operates on a 12V electrical system, which is standard for motorcycle applications in this class.
The 9003 uses a P43t base, a bayonet-style mount with a 43mm flange that indexes the bulb in a fixed rotational position to maintain correct filament alignment within the reflector housing.
The 9003 designation follows the ANSI standard applicable in the United States and Canada. It is functionally equivalent to the international HB2 designation, and bulbs sold under either designation are generally interchangeable.