Mercury Comet License Plate Bulb Size

The Mercury Comet license plate light uses bulb sizes 168, 97, 1155, and 67 depending on the specific version of the vehicle. Available information covers a span of time starting in 1960 and ending in 1977.

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
1977	168
1971-1975	97
1968-1969	97
1963-1967	1155
1960-1962	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. Variant of 1156. 12V, 13W.	97
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. Lower wattage variant of 1156. 12V, 8W.	67

Other Locations

Additional Notes

The Mercury Comet license plate bulb specifications span model years 1960 through 1977, with four distinct bulb types used across that period: the 67, 97, 1155, and 168.
The bulb 97 is the most frequently specified type in these records, covering the Mercury Comet for model years 1968-1969 and 1971-1975.
All four bulb types in these specifications conform to ANSI standards recognized in both the United States and Canada.
Three of the four bulb types, the 97, 1155, and 67, share the same BA15s single-contact bayonet base, which is a single-filament configuration also found in the common 1156 bulb family.
Although the 97, 1155, and 67 share the same BA15s base type, their wattage ratings differ significantly: the 67 operates at 8W, the 97 at 13W, and the 1155 at 21W, making them non-interchangeable despite the shared base.
The Mercury Comet (1963-1967) used the 1155 bulb for its license plate light, which at 21W is the highest-wattage bulb among all entries in these specifications.
The 67 bulb was specified for the Mercury Comet for model years 1960-1962, making it the earliest bulb type recorded in these specifications.
The 168 bulb, specified for the 1977 Mercury Comet, is a T10 miniature wedge type and operates on a fundamentally different base design than all other bulbs listed, as it uses a wedge-style connection rather than a bayonet base.
At 4.9W, the 168 wedge bulb used in the 1977 model year draws considerably less power than any of the BA15s-based bulbs specified for earlier model years.
The 1970 model year does not appear in these specifications, as the data moves directly from 1969 to 1971.