Dodge B150 License Plate Bulb Size

The Dodge B150 license plate light requires 168 and 1155 bulb sizes for the specific lighting components located on the rear exterior of the vehicle. Available data for the specified lighting components covers the range from 1981 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
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 B150 license plate bulb is the 168 across model years 1982-1994, making it the dominant fitment in these specifications.
The 168 bulb is an ANSI-standard miniature wedge type with a T10 form factor, rated at 12V and 4.9W.
The T10 wedge base design means the 168 bulb is held in place by the socket walls rather than a locking mechanism, which is a common trait of low-wattage auxiliary bulbs.
The 1981 Dodge B150 uses the 1155 bulb for the license plate position, which differs from all other listed model years.
The 1155 is a single-filament bulb with a BA15s bayonet base, rated at 12V and 21W, placing it in a significantly higher wattage class than the 168.
The BA15s bayonet base of the 1155 uses a single contact pin, distinguishing it from dual-contact bayonet variants and making socket compatibility a relevant fitment consideration.
The 1155 is noted as a variant of the 1156, meaning the two share a similar base and electrical configuration, though they are not identical and are not listed as interchangeable in these specifications.
The wattage difference between the 1155 (21W) and the 168 (4.9W) reflects fundamentally different socket and circuit designs, meaning the two bulb types are not cross-compatible despite both operating at 12V.
Both the 168 and the 1155 carry ANSI recognition in the US and Canada, indicating standardized electrical and physical ratings within those markets.