The Moto Guzzi Breva 750 uses a 9003 bulb size for both high beam and low beam headlight applications. The replacement chart covers 2003 to 2008 production years 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 9003 is a dual-filament halogen bulb rated at 12 volts, with a 60-watt filament for high beam and a 55-watt filament for low beam, mounted on a P43t base. Its dual-filament design allows a single bulb to serve both beam functions within one housing.
The 9003 designation follows the ANSI standard recognized in the United States and Canada. It is electrically and physically equivalent to the international HB2 designation, which shares the same P43t base and wattage ratings.
The Moto Guzzi Breva 750 uses the 9003 bulb for both the high beam and low beam headlight positions across the 2003-2008 model years, meaning a single bulb type covers both functions rather than requiring separate bulbs for each beam.
Because the high beam and low beam positions share the same 9003 specification, the two sockets are served by identical bulbs, which simplifies replacement but does not indicate that the two filaments within each bulb operate simultaneously under normal conditions.