Ford Thunderbird Courtesy Bulb Size

The Ford Thunderbird courtesy light utilizes unique bulb sizes including 168, 194, 89, 105, 904, 161, 211-2, 1893, 212-2, 214-2, and 1004 for various interior lighting applications. Available data for the specified vehicle components spans a range from 1962 through 2005.

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
2002-2005	168
1997	194
1996	168
1995	89
1994	168
1993	89
1992	105
1990-1991	168
1987-1989	194
1985	904
1982	105
1980-1981	161
1979	194
1978	211-2
1977	1893
1974-1976	212-2
1973	214-2
1970-1972	212-2
1968-1969	211-2
1962-1967	1004

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W.	89
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 13W.	105
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 8W.	904
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 1W.	161
ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W.	211-2
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W.	1893
ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W.	212-2
ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W.	214-2
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W.	1004

Other Locations

Additional Notes

The Ford Thunderbird courtesy bulb specifications span model years 1962 through 2005, with bulb size 168 being the most frequently specified across that range, appearing in the 1990-1991, 1994, 1996, and 2002-2005 model years.
The 168 is a T10 miniature wedge bulb rated at 12V and 4.9W under the ANSI standard. It shares the T10 wedge form factor with the 194, 904, and 161 bulbs also found in these specifications, though each carries a distinct wattage rating.
The 194 bulb is a T10 miniature wedge type rated at 12V and 3.78W, making it the lowest-wattage T10 variant in these specifications. It is specified for the Ford Thunderbird in the 1979, 1987-1989, and 1997 model years.
Although the 168 and 194 share the same T10 wedge base, their wattage ratings differ at 4.9W and 3.78W respectively, which means they are not direct interchangeable replacements without accounting for that difference.
The festoon bulbs 211-2, 212-2, and 214-2 all share the same 41mm length, SV8.5 base, 12V, and 12W ratings under the ANSI standard, making them functionally equivalent in electrical and physical terms.
The 212-2 festoon bulb is the most frequently specified festoon type in these records, covering the Ford Thunderbird model years 1970-1972 and 1974-1976, with the closely related 211-2 specified for 1968-1969 and the 214-2 for 1973.
The 1004 bulb is a dual-filament type with a BAY15d bayonet base, rated at 12V and 21/5W, and is listed as a variant of the 1157. It is specified for the Thunderbird across the 1962-1967 model years.
The 89 and 105 bulbs are both single-filament types with a BA15s bayonet base, each rated at 12V and 13W, and both are listed as variants of the 1156. The 89 is specified for 1993 and 1995, while the 105 is specified for 1982 and 1992.
The 161 is a T10 miniature wedge bulb rated at only 1W, the lowest wattage of any bulb in these specifications. It is specified for the 1980-1981 model years.
The 1893 is a T5 miniature wedge bulb rated at 12V and 2W, representing a smaller form factor than the T10 wedge bulbs also present in these specifications. It is specified solely for the 1977 model year.