The Aprilia Dorsoduro 750 headlight bulb size is 9003 for both high beam and low beam applications. The replacement chart covers vehicle production years from 2010 to 2016 with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Aprilia Dorsoduro 750 uses the 9003 bulb type for both high beam and low beam headlights across all model years from 2010-2016.
The 9003 is a dual-filament halogen bulb, meaning a single bulb unit contains two separate filaments: one rated at 60W for high beam output and one rated at 55W for low beam output.
Because both the high beam and low beam positions share the same 9003 specification, a single bulb type serves both functions in the headlight assembly.
The 9003 bulb operates on a 12V electrical system and uses a P43t base, which is a bayonet-style fitting with a 43mm collar.
The 9003 designation follows the ANSI standard used in the United States and Canada. This bulb is also commonly cross-referenced as HB2 or H4, and these designations are generally considered interchangeable in fitment.
The P43t base is a keyed fitting, meaning the bulb is physically designed to seat in only one orientation, which aligns the filaments correctly within the reflector housing.