Chevrolet Styleline Dome Light Bulb Size

The Chevrolet Styleline dome light uses a size 81 bulb for interior illumination. The replacement chart covers 1950 to 1952 production years with corresponding bulb specifications.

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	81

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 8W.	81

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Additional Notes

The 81 bulb is the sole dome light bulb size listed for the Chevrolet Styleline across the 1950-1952 model years.
The 81 bulb follows the ANSI standard, meaning it conforms to a specification recognized across the United States and Canada.
It is a single-filament bulb, which means it serves one lighting function rather than switching between two brightness levels as a dual-filament bulb would.
The 81 bulb uses a BA15s bayonet base, a single-contact bayonet fitting that locks into its socket with a push-and-twist motion.
It operates at 12 volts and draws 8 watts, placing it in the low-wattage range typical of interior courtesy lighting.
The BA15s base designation indicates a single-contact base with a 15mm collar, and substituting a BA15d dual-contact bulb in its place would result in an incompatible fit.