Jeep J20 License Plate Bulb Size

The Jeep J20 license plate light uses 67 and 97 bulb sizes according to the provided technical specifications for the vehicle lighting system. Data for the specific components covers the time range from 1974 through 1988.

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
1985-1988	67
1974-1984	97

Bulb Specifications

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

Other Locations

Additional Notes

The Jeep J20 license plate bulb specifications cover model years 1974 through 1988, with two distinct bulb sizes used across that span.
The bulb 97 is the more widely used of the two, fitted across the J20 for model years 1974-1984.
Both the 67 and 97 are ANSI-standardized bulbs recognized in the US and Canadian markets, each operating on a 12-volt electrical system.
Both bulbs share the BA15s single-contact bayonet base, meaning the physical mounting interface is identical between the two types.
Despite the shared base, the 97 operates at 13 watts while the 67 operates at 8 watts, making them electrically non-equivalent.
The wattage difference between the two types means substituting one for the other may affect circuit load and light output, even though the base style is the same.
Both bulbs are single-filament types, which is consistent with the straightforward on/off function of a license plate light.
The Jeep J20 transitioned from the 97 to the lower-wattage 67 bulb starting with the 1985 model year, with the 67 remaining in use through 1988.