Mercury Commuter Dome Light Bulb Size

The Mercury Commuter dome light utilizes 1003 and 1816 bulb sizes for interior illumination. Available data for the specified vehicle covers the range from 1957 through 1968.

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

YearsBulb TypeShop
19681003Check Price
19671816Check Price
1957-19661003Check Price

Bulb Specifications

Description Type Shop
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.1003Check Price
ANSI standard (US & Canada). Miniature wedge bulb (T3.25). 12V, 4W.1816Check Price

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