Buick Skylark Turn Signal Bulb Size

Buick Skylark front and rear turn signal bulbs utilize sizes 3457NA, 3357NA, 2057NA, 3057, and 1157, with front positions requiring the larger bulb configurations and rear positions accommodating the standard sizes. The replacement chart covers 1954 through 1998 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
19983457NA
19973357NA
19963457NA
1989-19952057NA
1986-19882057
1983-19852057NA
1981-19821034NA
19801157NA
19791034NA
1977-19781157
19761034NA
19751157NA
19721034NA
19711157NA
19701034NA
19691157NA
19681034NA
1966-19671157NA
19651034NA
19641157
1961-19631034
19541034

Rear Turn Signal

YearsBulb Size
1992-19983057
1983-19912057
1975-19821157
1964-19721157
1961-19631034
19541073

Bulb Specifications

Description Bulb Size
ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W.3457NA
ANSI standard (US & Canada). Single-filament wedge bulb (T25), natural amber glass. 12V, 27W.3357NA
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. Brighter variant of 1157. 12V, 26.9W/8W.2057NA
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Brighter variant of 1157. 12V, 26.9W/8W.2057
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). 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 wedge bulb (T25). 12V, 27W/7W.3057
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W.1073

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