Bertone X-1/9 License Plate Bulb Size

The Bertone X-1/9 license plate light requires a single bulb size 67 for proper illumination of the rear vehicle identification area. Data for the specific lighting component covers the period from 1984 through 1989.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
1984-1989	67

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 8W.	67

Other Locations

Additional Notes

The bulb size 67 is an ANSI-standardized type recognized across the United States and Canada, operating at 12 volts and 8 watts.
The Bertone X-1/9 uses the 67 bulb for its license plate light across the 1984-1989 model years.
The 67 bulb uses a BA15s bayonet base, which is a single-contact fitting with a 15mm barrel and a single locating pin on its side.
The single-filament design of the 67 bulb means it serves one lighting function only, which is consistent with its application in a license plate position rather than a combined stop or tail role.
The 67 bulb is a lower wattage variant of the 1156, sharing the same BA15s base type but drawing 8 watts compared to the 1156's approximately 27 watts, making the two types electrically incompatible as direct substitutes despite their physical similarity.