Chevrolet Bel Air License Plate Bulb Size

The Chevrolet Bel Air license plate light utilizes unique bulb sizes 168, 97, 67, 1155, and 63 depending on the specific version. Available data covers the range from 1950 to 1975.

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

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

Years	US Type	EU Type	Shop
1974-1975	168	W5W	Check Price
1972-1973	97	97	Check Price
1968-1971	67	67	Check Price
1966-1967	1155	1155	Check Price
1955-1965	67	67	Check Price
1950-1954	63	63	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168	Check Price
ECE standard (Europe & worldwide). Single-filament signalling bulb with W2.1x9.5d wedge base. 12V, 5W.	W5W	Check Price
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 13W.	97	Check Price
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 8W.	67	Check Price
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 21W.	1155	Check Price
ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 0.63W.	63	Check Price

Other Locations

Additional Notes

The bulb 67 is the most frequently specified type across the Chevrolet Bel Air license plate bulb data, covering model years 1955-1965 and 1968-1970. It is an ANSI-standard single-filament bulb with a BA15s bayonet base, rated at 12V and 8W.
The bulb 63 is specified for the Chevrolet Bel Air from 1950-1954. It uses a BA9s base rather than the BA15s bayonet base found on the 67, 97, and 1155 types, making it physically incompatible with those sockets despite sharing the same 12V operating voltage. Its rated output is 0.63W.
The bulbs 67, 97, and 1155 all share the BA15s bayonet base and 12V rating, but differ significantly in wattage: 8W, 13W, and 21W respectively. Despite the shared base type, substituting one for another would alter the light output and electrical load at the socket.
The 1155 bulb, specified for 1966-1967, draws 21W, which is more than double the wattage of the 97 (13W) used in 1972-1973 and more than twice that of the 67 (8W). This wattage difference is relevant when assessing socket and wiring compatibility across model years.
The 168 bulb, specified for 1974-1975, is a T10 miniature wedge type. Its wedge base design is mechanically distinct from the BA15s bayonet base used by the 67, 97, and 1155 bulbs, and from the BA9s base of the 63, meaning it is not interchangeable with any other bulb type in these specifications.
The transition from the 67 bulb (1964-1965) to the 1155 bulb (1966-1967) represents a shift to a significantly higher wattage at the license plate position, followed by a return to lower-wattage BA15s bulbs in subsequent years.
All five bulb types in these specifications conform to ANSI standards recognized in both the United States and Canada, indicating standardized electrical and physical tolerances within their respective base categories.
The BA9s base of the 63 bulb is a smaller bayonet fitting than the BA15s base shared by the 67, 97, and 1155 types. The numeric difference in base designations reflects the base contact pin spacing in millimeters, confirming physical incompatibility between the 63 and the BA15s-based bulbs.