Moto Guzzi 1100 California front and rear turn signal bulbs both utilize a 5008 size bulb for proper operation. The replacement chart covers 1995-1996 production 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 5008 is an ANSI-standard bulb recognized in the US and Canada, operating at 12 volts with a single filament and a BA15s bayonet base.
The BA15s base designation indicates a single-contact bayonet fitting, which is not interchangeable with dual-contact BA15d bases used in some other automotive and motorcycle applications.
The 5008 is a lower wattage variant of the 1156 bulb. Both share the BA15s base, but their wattage ratings differ, making them functionally distinct despite physical similarities.
The Moto Guzzi 1100 California uses the 5008 bulb for both front and rear turn signals across the 1995-1996 model years covered in the specifications.
The front and rear turn signal positions share the same bulb type, meaning a single bulb specification applies to all four turn signal positions on the motorcycle.