Chevrolet G-Van Turn Signal Bulb Size

Chevrolet G-Van front turn signal bulbs use sizes 12961, 3157NA, or 2057NA, while rear turn signal bulbs use sizes 2057, 1157, or 198 depending on the specific bulb configuration. The replacement chart covers vehicle production years spanning 1975 through 1995.

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
199512961 (For vehicle with Grille, Radiator (Chrome))
3157NA (For vehicle without Grille, Radiator (Chrome))
1992-19943157NA
1983-19912057NA
19821157NA
1979-19811034NA
19781157NA
1975-1977198

Rear Turn Signal

YearsBulb Size
1983-19952057
1978-19821157
1975-1977198

Bulb Specifications

Description Bulb Size
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.12961
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. Brighter variant of 1157. 12V, 26.9W/8W.2057NA
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. Variant of 1157. 12V, 21/5W.1034NA
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
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W.1157

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