The Moto Guzzi V11 Bassa uses 5008 bulb size for both front and rear turn signal applications. The replacement chart covers 1999 to 2000 production years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 5008 is the sole bulb type specified for the Moto Guzzi V11 Bassa across both front and rear turn signal positions for the 1999-2000 model years.
The 5008 is an ANSI-standardized bulb recognized in the United States and Canada, operating on a 12-volt electrical system.
It is a single-filament bulb, meaning it serves one lighting function only, which is consistent with dedicated turn signal applications that do not share a filament with a brake or running light circuit.
The 5008 uses a BA15s bayonet base, a single-contact fitting where the "s" denotes a single pin, distinguishing it from dual-contact bayonet variants.
The 5008 is a lower wattage variant of the 1156 bulb, sharing the same BA15s base type but drawing less power, which makes the two non-equivalent replacements despite their physical similarity.
Because the 5008 and 1156 share the BA15s base, the 1156 will physically seat in the same socket, but the wattage difference means substituting one for the other may affect turn signal flash rate or load compatibility with the vehicle's flasher relay.
The front and rear turn signal positions on the V11 Bassa use the same 5008 bulb specification, indicating a uniform socket and electrical requirement across all four turn signal housings.