Chevrolet Del Ray License Plate Bulb Size

The Chevrolet Del Ray license plate light requires a unique bulb size of 67 for proper installation and function. Data for the specific lighting component covers the range from 1957 to 1958.

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
1957-1958	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 used in both the United States and Canada, operating at 12 volts and 8 watts.
The 67 bulb uses a BA15s bayonet base, which is a single-contact base with a 15mm collar and two offset pins that lock the bulb in place with a push-and-twist motion.
The single-filament design of the 67 bulb means it serves one lighting function only, which in this application is license plate illumination.
The 67 bulb is a lower wattage variant of the 1156, sharing the same BA15s base type but drawing less power at 8 watts compared to the 1156's 26.88 watts.
The shared BA15s base between the 67 and 1156 bulbs does not make them interchangeable without consideration, as the wattage difference can affect socket compatibility and circuit load.
The Chevrolet Del Ray used the 67 bulb for its license plate position across both the 1957 and 1958 model years.