The Aprilia RXV 450 headlight bulb uses a 9003 size for both high beam and low beam applications. The replacement chart covers vehicle production spanning 2006 to 2012 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 Aprilia RXV 450 uses the 9003 bulb type for both high beam and low beam headlight positions across the 2006-2012 model years.
The 9003 is a dual-filament halogen bulb, meaning a single bulb unit contains two separate filaments to serve both high and low beam functions within one housing.
The 9003 operates at 12 volts and carries a wattage rating of 60W on the high beam filament and 55W on the low beam filament.
The 9003 uses a P43t base, which is a bayonet-style mount with a 43mm flange, and fitment requires a socket compatible with this specific base type.
The 9003 designation follows the ANSI standard used in the United States and Canada, and it is electrically and physically equivalent to the H4 bulb used under international IEC standards, making cross-compatibility possible in practice.
Because the same 9003 bulb serves both the high beam and low beam positions on the RXV 450, only one bulb type is required to service the entire headlight assembly.