Subaru Loyale License Plate Bulb Size

The Subaru Loyale license plate requires a 194 bulb size for proper illumination of the rear registration area. Data for the bulb specifications covers the range from 1990 to 1994.

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
1990-1994	194

Bulb Specifications

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

Other Locations

Additional Notes

The Subaru Loyale uses the 194 bulb for the license plate position across the 1990-1994 model years.
The 194 is a miniature wedge-type bulb, classified under the T10 form factor, which refers to a tubular glass envelope roughly 10 eighths of an inch wide with a wedge-style base that friction-fits directly into the socket without a separate metal base or pins.
The 194 operates at 12 volts and draws 3.78 watts, placing it among the lower-wattage bulbs in automotive applications, consistent with a license plate illumination role.
The 194 carries ANSI standardization recognized in both the United States and Canada, meaning the specification conforms to a defined performance and dimensional standard rather than being a proprietary part number.
Because the 194 uses a wedge base, physical fitment depends on socket cavity size, and substituting a bulb with a different wedge base width risks a loose or incompatible fit even if the voltage rating matches.