Toyota Supra Map Light Bulb Size

The Toyota Supra map light requires a bulb size of 57 for the interior lighting component. Data for the specified bulb covers the range from 1995 through 1998.

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 Type	Shop
1995-1998	57	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 1W.	57	Check Price

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Additional Notes

The bulb size 57 is an ANSI-standardized type recognized across the US and Canadian markets, operating at 12 volts with a 1-watt power draw and a single filament.
The 57 bulb uses a BA9s base, which is a miniature bayonet cap with a 9mm cap body, a common format in low-current interior lighting applications such as map lights.
The Toyota Supra uses the 57 bulb for its map light across the 1995-1998 model years, with no variation in bulb size across that span.
The single-filament construction of the 57 bulb means it serves only one lighting function, with no secondary circuit for features such as a brake or running light signal.
The BA9s base type is not interchangeable with wedge-base or festoon-style bulbs, which are also found in interior lighting positions on various vehicles, making base-type confirmation relevant before substitution.