The Ducati 996 Biposto headlight bulb specifications include an H1 size for high beam and H3 size for low beam applications. The replacement chart covers 1999 to 2001 production years with corresponding bulb size data.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Ducati 996 Biposto uses the H1 bulb for the high beam headlight across the 1999-2001 model years.
The H1 is a single-filament halogen bulb operating on a P14.5s base, typically rated at 55 watts and designed for dedicated high beam applications.
The low beam headlight on the Ducati 996 Biposto uses the H3 bulb across the same 1999-2001 model years.
The H3 is a single-filament halogen bulb with a PK22s base, also commonly rated at 55 watts, and is distinguished by its inline filament orientation relative to the bulb axis.
The high and low beam positions on the Ducati 996 Biposto use different bulb types, meaning the H1 and H3 are not interchangeable between the two housings despite both being single-filament halogen designs.
The H1 and H3 bulbs differ in base type, with the P14.5s and PK22s connectors being physically incompatible, which prevents accidental cross-installation between the two positions.
The fitment of both H1 and H3 bulbs remains consistent across all three documented model years of the Ducati 996 Biposto, indicating no bulb specification changes occurred during the 1999-2001 production period.