The Ducati 900 front and rear turn signal bulbs both require a 5008 size bulb for proper operation. The replacement chart covers 1999 to 2002 model years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Ducati 900 uses the 5008 bulb for both front and rear turn signals across the 1999-2002 model years.
The 5008 is an ANSI-standardized bulb type recognized in the United States and Canada.
It operates on a 12-volt electrical system, consistent with standard automotive and motorcycle applications.
The 5008 uses a BA15s bayonet base, which is a single-contact base with a 15mm collar and a single locating pin on the side.
The bulb is a single-filament type, meaning it serves one lighting function rather than combining two functions such as running light and turn signal in one unit.
The 5008 is a lower wattage variant of the 1156 bulb, sharing the same BA15s base but drawing less power, which means the two types are not directly interchangeable despite their physical similarities.