Toyota Starlet Instrument Panel Bulb Size

The Toyota Starlet instrument panel utilizes bulb size 74 and bulb size 194 for the specific lighting components. Data for the listed components covers the range from 1981 to 1984.

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
1982-1984	74
1981	194

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 1.4W.	74
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194

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Additional Notes

The 74 bulb is an ANSI-standard miniature wedge type with a T5 envelope, rated at 12 volts and 1.4 watts, making it one of the smallest and lowest-wattage wedge bulbs used in instrument panel applications.
The 194 bulb shares the same ANSI-standard wedge base family but uses a larger T10 envelope and draws significantly more power at 3.78 watts, which places it in a different physical size class than the 74.
Although both the 74 and 194 are miniature wedge bulbs operating at 12 volts, their differing envelope sizes and wattage ratings mean they are not interchangeable with each other.
The Toyota Starlet used the 74 bulb for its instrument panel across the 1982-1984 model years, while the 1981 model year used the 194 bulb instead.
The T5 and T10 designations refer to the tubular envelope width measured in eighths of an inch, meaning the T10 envelope is notably wider than the T5.
Both bulb types conform to ANSI standards applicable in the United States and Canada, indicating standardized physical and electrical specifications recognized across North American markets.