Chevrolet Chevette Tail Light Bulb Size

The Chevrolet Chevette tail light requires bulb sizes 2057 and 1157 for proper illumination across various production versions. Available information covers the specific time range from 1976 through 1987.

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

Years	Bulb Size
1983-1987	2057
1976-1982	1157

Bulb Specifications

Description	Bulb Size
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

Other Locations

Additional Notes

The Chevrolet Chevette tail light bulb specifications cover model years 1976-1987, with two distinct bulb types used across that span.
The 1157 bulb is specified for the Chevrolet Chevette across the 1976-1982 model years, making it the longer-running of the two bulb types in these specifications.
The 2057 bulb replaced the 1157 starting with the 1983 model year and remained the specified tail light bulb through 1987.
Both the 1157 and 2057 are ANSI-standardized bulbs recognized in the United States and Canada, and both use the BAY15d bayonet base, a two-pin offset base that locks the bulb into position within the socket.
Both bulbs are dual-filament types, meaning a single bulb serves two lighting functions, typically combining stop and tail light operation within one unit.
The 1157 operates at 12 volts with filament wattages of 21W and 5W, corresponding to its high and low output filaments respectively.
The 2057 also operates at 12 volts but draws 26.9W on its high filament and 8W on its low filament, producing greater output than the 1157 on both filaments.
Although the 1157 and 2057 share the same BAY15d base type, the wattage differences between the two mean they are not interchangeable without accounting for the variation in electrical draw and light output.