Dodge B350 License Plate Bulb Size

The Dodge B350 license plate light requires a 168 or 1155 bulb size depending on the specific version of the vehicle. Information provided covers the production span from 1981 through 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
1982-1994	168
1981	1155

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 21W.	1155

Other Locations

Additional Notes

The Dodge B350 uses the 168 bulb for the license plate position across the 1982-1994 model years, with the sole exception of the 1981 model year, which uses the 1155 bulb instead.
The 168 is a T10 miniature wedge bulb rated at 12 volts and 4.9 watts, conforming to ANSI standards recognized in both the United States and Canada.
The T10 wedge base on the 168 bulb relies on the shape of its glass envelope and two wire leads to seat into the socket, with no separate metal base required.
The 1155 is a single-filament bulb with a BA15s bayonet base, rated at 12 volts and 21 watts, also conforming to ANSI standards recognized in both the United States and Canada.
The BA15s bayonet base on the 1155 uses a pin-and-slot locking mechanism, which is physically incompatible with the wedge socket used by the 168 bulb.
At 21 watts, the 1155 draws considerably more power than the 4.9-watt 168, meaning the two bulbs are not electrically interchangeable despite both operating on a 12-volt system.
The 1155 is described as a variant of the 1156, a widely available single-filament bayonet bulb, indicating close but not identical specifications between the two.
The socket type changed between the 1981 and 1982 Dodge B350, as the shift from a BA15s bayonet fitting to a T10 wedge fitting reflects a hardware-level difference requiring attention during replacement.