Studebaker Avanti License Plate Bulb Size

The Studebaker Avanti license plate light requires a bulb size of 67 for the exterior lighting system. Data for the specified component covers the range from 1963 to 1964.

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
1963-1964	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 single-filament bulb rated at 12 volts and 8 watts, fitted with a BA15s bayonet base.
The BA15s base designation indicates a single-contact bayonet mount with a 15mm base width, which is not interchangeable with dual-contact BA15d variants.
The Studebaker Avanti uses the type 67 bulb for the license plate position across the 1963-1964 model years.
The type 67 shares the same BA15s bayonet base as the more widely known 1156 bulb but operates at a lower wattage, making the two types non-interchangeable despite their physical similarities.