The Moto Guzzi V11 EV uses 9003 bulb size for both high beam and low beam headlight applications. Replacement chart data covers 1998-1999 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 operating at 12 volts, with a high beam filament rated at 60 watts and a low beam filament rated at 55 watts. It uses a P43t base and is designated under the ANSI standard applicable in the United States and Canada.
Because the 9003 carries both filaments within a single bulb, it serves the Moto Guzzi V11 EV's high beam and low beam functions from one unit rather than two separate bulbs.
The Moto Guzzi V11 EV uses the 9003 bulb size for both the high beam and low beam headlight positions across the 1998-1999 model years.
The 9003 is functionally equivalent to the H4 bulb type used in international markets, though the two share the same P43t base. The 9003 designation reflects the ANSI classification system, while H4 reflects the ECE classification system used outside North America. These designations are not always interchangeable in practice due to differing photometric and regulatory requirements depending on the market.