Chevrolet Truck Turn Signal Bulb Size

Chevrolet Truck front and rear turn signal bulb sizes include 1156, 1073, and 1154 options for the specified bulb applications. The replacement chart covers vehicle production years from 1950 to 1960 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
1958-19601156
1956-19571073
1950-19551154

Rear Turn Signal

YearsBulb Size
1958-19601156
1956-19571073
1950-19551154

Bulb Specifications

Description Bulb Size
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). Dual-filament bulb with BAY15d bayonet base. Older variant of 1157. 6V/12V.1154

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