Chevrolet K-Series Pickup Turn Signal Bulb Size

Chevrolet K-Series Pickup front turn signal bulbs utilize 2357NA, 3057, or 3057NA sizes, while rear turn signal bulbs use 1157, 3057, or 2057 sizes depending on model configuration and production specifications. The replacement chart covers 1975 through 2000 vehicle production 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
1993-20002357NA
19923057
1988-19912357NA
1985-19863057NA (With 2 Headlamps)
2057NA (With 4 Headlamps)
1983-19842057NA
19821034NA
19811157
19801034NA
19791157NA
1975-1978198

Rear Turn Signal

YearsBulb Size
20001157
1998-19993057
1993-19971157
1990-19923057
1988-19892057
1983-19862057
1979-19821157
1975-1978198

Bulb Specifications

Description Bulb Size
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 wedge bulb (T25). 12V, 27W/7W.3057
ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W.3057NA
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, 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, natural amber glass. 12V, 21W/5W.1157NA
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W.198
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Brighter variant of 1157. 12V, 26.9W/8W.2057

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