Chevrolet Sedan Delivery License Plate Bulb Size

The Chevrolet Sedan Delivery license plate light uses bulb sizes 63 and 67 depending on the specific production period. Available data for the lighting components covers the range from 1950 to 1960.

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
1956-1960	67
1950-1955	63

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 8W.	67
ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 0.63W.	63

Other Locations

Additional Notes

The Chevrolet Sedan Delivery uses two distinct bulb types across its 1950-1960 model years: the type 67 and the type 63, both of which are ANSI standards recognized in the United States and Canada.
The type 67 bulb is a single-filament unit rated at 12 volts and 8 watts, fitted with a BA15s bayonet base. It is a lower-wattage variant of the more widely known 1156 bulb.
The type 63 bulb is a single-filament unit rated at 12 volts and 0.63 watts, fitted with a BA9s base. Its wattage is substantially lower than that of the type 67.
The BA15s and BA9s bases are physically incompatible with each other, meaning the type 67 and type 63 are not interchangeable despite both being single-filament, 12-volt bulbs.
The Chevrolet Sedan Delivery used the type 63 bulb for the license plate position across the 1950-1955 model years.
Starting with the 1956 model year, the Chevrolet Sedan Delivery transitioned to the type 67 bulb for the license plate position, a fitment that continued through the 1960 model year.
The 1956 model year represents the point at which the license plate bulb specification changed, making it a critical boundary for parts selection between the two bulb types.