The Ducati 748 Monoposto headlight bulb specifications include an H1 size for high beam and an H3 size for low beam applications. The replacement chart covers vehicle production years spanning 2000 to 2002 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 748 Monoposto uses the H1 bulb for the high beam headlight across the 2000-2002 model years.
The H1 is a single-filament halogen bulb with a P14.5s base, operating at 12 volts and typically rated at 55 watts.
The low beam headlight on the 748 Monoposto uses the H3 bulb across the same 2000-2002 model years.
The H3 is also a single-filament halogen bulb, distinguished by its PK22s base, which uses a metal tab connector rather than the pin-and-socket design of the H1.
Because the H1 and H3 share no base compatibility, the two bulb positions on this motorcycle are not interchangeable with each other.
Both the H1 and H3 belong to the broader family of single-filament halogen bulbs, yet their differing base types mean each position requires a specifically matched replacement.