Plymouth Barracuda License Plate Bulb Size

The Plymouth Barracuda license plate light uses 67 and 97 bulb sizes for the rear illumination components. Data for the specific lighting requirements covers the period from 1964 through 1974.

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
1972-1974	97
1964-1971	67

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 13W.	97
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 8W.	67

Other Locations

Additional Notes

The Plymouth Barracuda uses two bulb types across its model years for the license plate position: the 97 and the 67.
Both the 97 and 67 are ANSI-standardized bulbs recognized in the US and Canada, and both share the BA15s single-contact bayonet base with single-filament construction operating at 12 volts.
The primary distinction between the two bulbs is wattage. The 97 draws 13W, while the 67 draws 8W, making the 67 a lower-output variant relative to the 97.
Both bulbs are classified as variants of the 1156, a widely used automotive bulb type, though neither is a direct substitute for the 1156 itself due to wattage differences.
The Plymouth Barracuda (1964-1970) uses the 67 bulb for the license plate position across eight consecutive model years.
The 1971-1974 Barracuda uses the 97 bulb, reflecting a shift from the 67 used in earlier model years.
Because the 97 and 67 share the same BA15s bayonet base, physical installation is mechanically compatible between the two, but the wattage difference means they are not electrically interchangeable without affecting light output.
The BA15s base designation indicates a single-contact bayonet fitting with a 15mm base width, a common format in low-voltage automotive lighting applications.