Dodge B100 License Plate Bulb Size

The Dodge B100 license plate light requires a unique bulb size of 1155 or 97 depending on the specific application. Data for the lighting components covers the range from 1975 to 1980.

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
1980	1155
1975-1979	97

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 21W.	1155
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 13W.	97

Other Locations

Additional Notes

The Dodge B100 license plate bulb specifications cover the 1975-1980 model years, with two distinct bulb types appearing across that span: the 97 and the 1155.
The bulb 97 is the fitment for the Dodge B100 across the 1975-1979 model years, making it the more frequently specified of the two types in these records.
The 1980 model year marks a change in the specified bulb, with the 1155 replacing the 97 as the license plate bulb fitment.
Both the 97 and the 1155 are ANSI-standardized bulbs recognized in the United States and Canada, and both use the BA15s single-contact bayonet base, which features a single pin on the base for locking into the socket.
Despite sharing the same BA15s base type, the 97 and the 1155 differ in wattage. The 97 operates at 13W, while the 1155 operates at 21W, meaning the two are not electrically equivalent and are not interchangeable without consideration of that difference.
Both bulbs operate on a 12V system and carry a single filament, classifying them as non-dual-function bulbs suited to applications requiring a steady, non-switching light output such as license plate illumination.
The 1155 is described as a variant of the 1156, a widely used automotive bulb. The 1156 is a common reference point in the BA15s family, and the 1155 shares its base configuration while differing in wattage output from the standard 1156 rating of approximately 26.9W.
The 97 is likewise described as a variant of the 1156, sharing the BA15s base but operating at a notably lower wattage of 13W, placing it at the lower end of the 1156 variant family in terms of power draw.