Chevrolet Styleline License Plate Bulb Size

The Chevrolet Styleline license plate bulb uses a 63 size specification for this model. The replacement chart covers vehicle production years spanning 1950 to 1952 with corresponding bulb size data.

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
1950-1952	63

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 0.63W.	63

Other Locations

Additional Notes

The 1950-1952 Chevrolet Styleline uses the 63 bulb for the license plate position across all three model years.
The 63 is an ANSI-standardized bulb type recognized in both the United States and Canada.
It operates on a 12-volt electrical system and draws 0.63 watts, placing it among the lowest-wattage bulbs found in automotive lighting applications.
The 63 bulb uses a BA9s base, a miniature bayonet fitting with a 9mm cap width and a single pin, which physically distinguishes it from double-contact bayonet types and prevents incorrect installation of incompatible bulbs.
As a single-filament bulb, the 63 serves only one lighting function, consistent with its use in a license plate application where no switching between brightness levels is required.