Subaru RX License Plate Bulb Size

The Subaru RX license plate light requires a unique bulb size of 67 or 194 depending on the specific version of the vehicle. Data for the lighting components covers the range from 1985 through 1989.

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
1989	67
1988	194
1987	67
1985-1986	194

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 8W.	67
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194

Other Locations

Additional Notes

The Subaru RX license plate bulb specifications cover model years 1985 through 1989, with two distinct bulb types appearing across those years: the 67 and the 194.
The 67 bulb is an ANSI-standard single-filament type rated at 12V and 8W, fitted with a BA15s bayonet base. This base style requires a twist-and-lock installation rather than a simple push-fit connection.
The 194 is an ANSI-standard miniature wedge bulb of the T10 form factor, rated at 12V and 3.78W. Its wedge base is held in place by socket tension alone, with no locking mechanism.
The 67 and 194 are not interchangeable. Their base types are physically incompatible, and their wattage ratings differ significantly, with the 67 drawing more than twice the power of the 194.
The Subaru RX (1985-1986) uses the 194 bulb for the license plate position.
The 1987 model year shifts to the 67 bulb, while 1988 returns to the 194.
The 1989 model year uses the 67 bulb, the same type as 1987.
Because the bulb type alternates across consecutive model years, the production year of the specific vehicle is a necessary reference before selecting a replacement bulb for the Subaru RX license plate position.