Mercury Comet Map Light Bulb Size

The Mercury Comet Map Light utilizes bulb sizes 1003, 105, 631, 257, and 57 to provide illumination for the interior cabin area of the vehicle. Available data for the specific lighting components spans from 1962 through 1976 for the various configurations listed.

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
19761003Check Price
1975105Check Price
19741003Check Price
1968-1969631Check Price
1964-1967257Check Price
1962-196357Check 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). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 13W.105Check Price
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 21W.631Check Price
ANSI standard (US & Canada). Festoon or BA9s base instrument bulb. 12V, 2W.257Check Price
ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 1W.57Check Price

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