Chevrolet Celebrity Cornering Bulb Size

The Chevrolet Celebrity cornering light utilizes 1156, 2057, and P21W bulb sizes depending on the specific application for the vehicle. Data for the lighting components covers the period from 1985 to 1988.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

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
1988	1156	P21W	Check Price
1987	2057	2057	Check Price
1986	1156	P21W	Check Price
1985	2057	2057	Check Price

Bulb Specifications

Description	Type	Shop
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
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Brighter variant of 1157. 12V, 26.9W/8W.	2057	Check Price

Other Locations

Additional Notes

The Chevrolet Celebrity cornering bulb alternates between two ANSI-standard bulb types across the 1985-1988 model years, with the 1156 fitted in 1986 and 1988, and the 2057 fitted in 1985 and 1987.
The 1156 is a single-filament bulb operating at 12V and 21W, mounted on a BA15s bayonet base, which features a single locating pin on the base collar.
The 2057 is a dual-filament bulb operating at 12V with a high-filament draw of 26.9W and a low-filament draw of 8W, mounted on a BAY15d bayonet base, which uses two offset locating pins to prevent incorrect insertion.
Because the BA15s and BAY15d bases are physically distinct, the 1156 and 2057 are not interchangeable without modification to the socket.
The 2057 is a brighter variant of the 1157, sharing the same dual-filament design and BAY15d base, though the two are not electrically identical due to differing wattage ratings.
Both bulb types conform to ANSI standards applicable in the United States and Canada, indicating standardized electrical and physical tolerances across manufacturers.
The cornering function in automotive lighting typically uses a single-activation state, which means only one filament is engaged during operation; the 2057's low-wattage filament at 8W would remain unused in a dedicated cornering application.