Dodge Ram 50 License Plate Bulb Size

The Dodge Ram 50 license plate light uses 168 and 67 bulb sizes for the exterior illumination components. Available data for the specified vehicle covers the period from 1983 through 1993.

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
1992-1993	168
1983-1986	67

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. Lower wattage variant of 1156. 12V, 8W.	67

Other Locations

Additional Notes

The two bulb types specified for the Dodge Ram 50 license plate position are the 168 and the 67, both conforming to ANSI standards recognized in the United States and Canada.
The 168 is a T10 miniature wedge bulb rated at 12V and 4.9W. Its wedge base design means it is held in place by tension from the socket itself rather than by a separate locking mechanism.
The 67 is a single-filament bulb with a BA15s bayonet base, rated at 12V and 8W. The BA15s designation indicates a single-contact bayonet fitting with a 15mm base width.
The 67 bulb is noted as a lower wattage variant of the 1156. While the two share the BA15s bayonet base and are physically similar, their wattage ratings differ, which affects interchangeability in applications with strict power requirements.
The Dodge Ram 50 used the 67 bulb for the 1983-1986 model years in the license plate position.
The 168 bulb applies to the 1992 and 1993 model years for the same position, representing a shift from the bayonet-base 67 to a wedge-base fitment.
The wedge base of the 168 and the bayonet base of the 67 are mechanically incompatible socket types, meaning the two bulbs are not interchangeable despite both serving the license plate function on this vehicle.
At 8W, the 67 draws notably more power than the 4.9W 168, a relevant consideration when evaluating socket and wiring load for each respective model year group.