Ford Custom Turn Signal Bulb Size

Ford Custom front and rear turn signal bulbs utilized 1157NA, 1034NA, 1157, 1034, and 1154 bulb sizes across different model configurations. The replacement chart covers 1950 through 1972 production years with corresponding bulb size specifications.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Front Turn Signal

YearsBulb Size
1971-19721157NA
19701034NA
19691157
19681157NA
1965-19671034NA
19641157NA
19571034
1950-19521154

Rear Turn Signal

YearsBulb Size
1964-19721157
19571034
1950-19521154

Bulb Specifications

Description Bulb Size
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 21W/5W.1157NA
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. Variant of 1157. 12V, 21/5W.1034NA
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
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Older variant of 1157. 6V/12V.1154

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