Chevrolet Celebrity Engine Compartment Light Bulb Size

The Chevrolet Celebrity engine compartment light uses 93 and 1156 bulb sizes for the specified model. The replacement chart covers 1985 to 1986 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.

Bulb Size by Year Range

Years	Bulb Size
1986	93
1985	1156

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W.	93
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.	1156

Other Locations

Additional Notes

The 1985 Chevrolet Celebrity uses a 1156 bulb for the engine compartment light, while the 1986 model uses a 93 bulb. Both share the same BA15s bayonet base, yet they are not interchangeable due to a significant difference in wattage.
The 1156 bulb operates at 12V and 21W, making it the higher-output of the two types specified across these model years.
The 93 bulb operates at 12V and 13W, classifying it as a lower-wattage variant of the 1156 within the same ANSI standard family.
Both the 93 and 1156 are single-filament bulbs, meaning each contains one filament and serves a single lighting function rather than a dual purpose such as combined stop and tail operation.
The BA15s bayonet base is a single-contact bayonet fitting, which is the shared physical base type for both bulbs. Despite this physical similarity, the wattage difference between the two types makes substitution a relevant fitment consideration.
Both bulb types conform to ANSI standards recognized in the United States and Canada, placing them within a standardized North American automotive lighting classification system.