Lincoln Premier Dome Light Bulb Size

The Lincoln Premier dome light requires a 1003 bulb size for proper illumination within the interior cabin area. Data for the specific component covers the range from 1956 through 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	1003

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.	1003

Other Locations

Additional Notes

The Lincoln Premier uses the 1003 bulb for the dome light across all listed model years, spanning 1956-1960.
The 1003 is an ANSI-standardized bulb type recognized in both the United States and Canada.
It is a single-filament bulb, meaning it serves one lighting function rather than switching between two brightness levels.
The 1003 uses a BA15s bayonet base, which is a single-contact bayonet mount with a 15mm base width.
The bulb operates at 12 volts, consistent with the 12V electrical systems standard in automotive applications of that era.
At 21 watts, the 1003 draws a moderate amount of power relative to other single-filament automotive bulbs of its class.
The BA15s base designation indicates a single-contact configuration, which is not interchangeable with BA15d bases that carry two contacts for dual-filament operation.