Toyota Mark II Instrument Panel Bulb Size

The Toyota Mark II instrument panel requires a 194 bulb size for the specific interior lighting component located within the dashboard cluster. Data for the bulb size covers the range from 1972 to 1976.

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
1972-1976	194

Bulb Specifications

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

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Additional Notes

The Toyota Mark II uses the 194 bulb for its instrument panel across the 1972-1976 model years.
The 194 is an ANSI-standardized bulb type, meaning its specifications are governed by a recognized North American industry standard applicable in both the US and Canada.
This bulb follows the T10 form factor, a miniature wedge-base design that seats without a separate locking mechanism, relying instead on the wedge shape of its base to hold it in place within the socket.
The 194 operates at 12 volts and draws 3.78 watts, placing it in the low-wattage range typical of instrument panel illumination applications.
Because the 194 is an ANSI-standardized type, it is produced by multiple manufacturers and is widely available as a direct-fit replacement for the Toyota Mark II instrument panel sockets across all five listed model years.
The T10 wedge base is a common platform shared by several bulb types with varying wattages, so substituting a non-194 T10 bulb could result in incorrect brightness or electrical load for the instrument panel circuit.