Chevrolet Celebrity Turn Signal Bulb Size

Chevrolet Celebrity front turn signal bulbs use 2057NA or 1034NA size, while rear turn signal bulbs use 2057 or 1156 size. The replacement chart covers 1982 to 1990 vehicle production years 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

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

Years	US Type	EU Type	Shop
1990	2057NA	P21/5W	Check Price
1983-1988	2057NA	P21/5W	Check Price
1982	1034NA	1034NA	Check Price

Rear Turn Signal

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

Years	US Type	EU Type	Shop
1990	2057	2057	Check Price
1984-1988	2057	2057	Check Price
1982-1983	1156	P21W	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. Brighter variant of 1157. 12V, 26.9W/8W.	2057NA	Check Price
ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W.	P21/5W	Check Price
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. Variant of 1157. 12V, 21/5W.	1034NA	Check Price
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Brighter variant of 1157. 12V, 26.9W/8W.	2057	Check Price
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.	1156	Check Price
ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W.	P21W	Check Price

Other Locations

Additional Notes

The 2057NA is a dual-filament bulb operating at 12V with a high/low wattage rating of 26.9W/8W. It uses a BAY15d bayonet base and features natural amber glass, which produces the amber color required for turn signal applications without the need for a colored lens or housing.
The 1034NA shares the same BAY15d bayonet base as the 2057NA but draws less power, rated at 21W/5W. Both bulbs carry the "NA" suffix, indicating natural amber glass construction under the ANSI standard used in the United States and Canada.
The 2057 is electrically and physically identical to the 2057NA, sharing the same 12V, 26.9W/8W rating and BAY15d base. The only distinction is the absence of natural amber glass, meaning the 2057 produces clear light and relies on an amber lens or housing to achieve the required signal color.
The 1156 is a single-filament bulb rated at 12V and 21W, using a BA15s bayonet base. Unlike the dual-filament bulbs in these specifications, it serves only one function per socket and is not interchangeable with BAY15d-based bulbs due to the difference in base configuration.
The Chevrolet Celebrity uses the 2057NA for the front turn signal across the 1983-1990 model years, with the exception of 1982, which uses the 1034NA. The BAY15d base is shared between these two bulbs, but their differing wattage ratings reflect a change in output between the 1982 model year and those that followed.
The rear turn signal on the Chevrolet Celebrity transitions from the 1156 single-filament bulb in 1982-1983 to the 2057 dual-filament bulb in 1984-1990. These two bulb types use different base configurations, the BA15s and BAY15d respectively, and are not interchangeable.
The 2057NA and 2057 are described as brighter variants of the 1157, a widely referenced dual-filament automotive bulb. This relationship indicates that the 2057 series produces higher light output on its primary filament than the standard 1157 while retaining the same BAY15d base, making the two physically compatible in the same socket.