The Aprilia SXV 550 uses a 9003 bulb size for both high beam and low beam headlight applications. The replacement chart covers vehicle production spanning 2006 to 2012.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Aprilia SXV 550 uses the 9003 bulb size 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 contains two separate filaments: one rated at 60W for high beam output and one rated at 55W for low beam output.
Operating voltage for the 9003 bulb is 12V, which is standard for motorcycle electrical systems in this class.
The 9003 bulb uses a P43t base, a bayonet-style mount with a 43mm flange that physically locks the bulb into the headlight housing.
The 9003 designation follows the ANSI standard used in the United States and Canada. This bulb is functionally equivalent to the H4 designation used under European ECE standards, though the two designations originate from different regulatory frameworks.
Because the same 9003 bulb serves both the high beam and low beam positions on the SXV 550, only one bulb type is required to service the entire headlight assembly.