Ford F-100 Turn Signal Bulb Size

Ford F-100 front and rear turn signal bulbs utilize sizes 1157, 1034NA, 1157NA, 198, and 199 depending on production specifications. The replacement chart covers 1953 through 1983 model years with corresponding bulb size data.

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
1982-19831157
19811034NA
1978-19801157
19771034NA
19761157NA
19751034NA
1973-19741157NA
1969-1972198
1963-19681156
19621073
1958-19611156
1956-19571141
1953-19551129

Rear Turn Signal

YearsBulb Size
1973-19831157
1969-1972198
1968199
1966-19671156
1965199
19641156
1963199
1961-19621073
19601156
19591073
19581156
1956-19571141
1953-19551129

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, natural amber glass. Variant of 1157. 12V, 21/5W.1034NA
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 21W/5W.1157NA
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W.198
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. Lower wattage variant of 1156. 12V, 13W.1073
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.1141
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W.1129
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 21W.199

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