Ford Mustang Turn Signal Bulb Size

Ford Mustang front and rear turn signal bulbs utilize 7443NA, 7444NA, 3157NA, 3157, and 1156 bulb sizes across multiple generations. The replacement chart covers 1964 through 2018 model years with corresponding bulb size specifications for each production period.

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
2017-20187443NA
2015-20167444NA
20023157NA
1989-19983157NA
19881157NA
19872357NA
1979-19831157
19731157NA
19721157
19711034NA
1969-19701157NA
1964-19681157

Rear Turn Signal

YearsBulb Size
20023157
1994-19983157
19931156
1991-19923157
19901156NA
1988-19893157
19871156
1979-19831157
1964-19731157

Bulb Specifications

Description Bulb Size
ANSI standard (US & Canada). Dual-filament wedge bulb (T20), natural amber glass. 12V, 21W/5W.7443NA
ANSI standard (US & Canada). Dual-filament wedge bulb (T20), natural amber glass. 12V, 21W/5W.7444NA
ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W.3157NA
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. 12V, 26.9W/8W.2357NA
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, natural amber glass. Variant of 1157. 12V, 21/5W.1034NA
ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W.3157
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.1156
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base, natural amber glass. 12V, 21W.1156NA

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