Mercury Commuter Brake Bulb Size

The Mercury Commuter brake light utilizes 1157 and 1034 bulb sizes for the rear lighting systems. Available data covers the specific range from 1957 through 1968 for the vehicle.

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 Size
1963-19681157
1957-19621034

Bulb Specifications

Description Bulb Size
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W.1157
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W.1034

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