Mercury Montclair Trunk Bulb Size

The Mercury Montclair trunk light utilizes bulb sizes 1003, 631, 1155, 67, 89, and 63 depending on the specific application. Available information covers the range from 1955 to 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
1966-1967631Check Price
1964-19651155Check Price
1958-196067Check Price
1956-195789Check Price
195563Check 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, 21W.631Check Price
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 21W.1155Check Price
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 8W.67Check Price
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W.89Check Price
ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 0.63W.63Check Price

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