The Ducati 750 headlight uses a 9003 bulb size for both high beam and low beam functions. The replacement chart covers vehicle production spanning 1999 to 2002.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 9003 bulb is the sole bulb type specified across all headlight positions for the Ducati 750, covering the 1999-2002 model years.
The 9003 bulb is a dual-filament halogen type, meaning a single bulb contains two separate filaments, one for high beam output and one for low beam output.
Because the 9003 serves both the high beam and low beam positions on this motorcycle, the same physical bulb handles the full range of forward lighting functions.
The 9003 bulb operates at 12 volts and is rated at 60 watts on the high beam filament and 55 watts on the low beam filament, which are standard output levels for this bulb type.
The 9003 and H4 designations refer to the same bulb, with 9003 being the North American designation and H4 being the international designation used in many markets.
The H4/9003 bulb uses a P43t base, which is a three-pronged connector that physically locks the bulb into the housing and aligns the filaments with the reflector optics.
Because the high beam and low beam positions on the Ducati 750 share the same 9003 specification across 1999-2002, a single replacement bulb type is interchangeable between both headlight functions.