Avanti II License Plate Bulb Size

The Avanti II license plate light requires a 67 bulb size for proper illumination on the rear of the vehicle. Data for the specified component covers the range from 1965 to 1973.

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
1965-1973	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 type 67 is an ANSI-standardized designation recognized in both the United States and Canada, making it a widely distributed and catalogued automotive bulb.
The 67 bulb operates on a 12-volt electrical system and draws 8 watts, placing it in the lower-power range of the BA15s bayonet base family.
It is a single-filament bulb, meaning it serves one lighting function rather than switching between two brightness levels as a dual-filament bulb would.
The 67 bulb uses a BA15s bayonet base, a single-contact mount where the "s" denotes a single pin, distinguishing it from the dual-contact BA15d variant.
The 67 is classified as a lower-wattage variant of the 1156 bulb, which shares the same BA15s base but operates at a higher wattage, so the two are not directly interchangeable in all applications despite their physical similarities.
The Avanti II uses the 67 bulb for its license plate lighting across the 1965-1973 model years, reflecting a consistent electrical specification held throughout that production span.