Mercury Montclair Map Light Bulb Size

The Mercury Montclair map light requires bulb sizes 1816, 631, 1895, and 81 depending on the specific application. Available information covers a span from 1955 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
19681816Check Price
1967631Check Price
19661816Check Price
1964-19651895Check Price
195581Check Price

Bulb Specifications

Description Type Shop
ANSI standard (US & Canada). Miniature wedge bulb (T3.25). 12V, 4W.1816Check Price
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 21W.631Check Price
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 0.9W.1895Check Price
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 8W.81Check Price

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