American Motors Ambassador Brake Bulb Size

The American Motors Ambassador brake light uses 1157 and 1034 bulb sizes for the lighting components. Data for the specific bulbs covers the range from 1958 through 1974.

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
1964-19741157
1958-19631034

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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