Ford Fairmont Map Light Bulb Size

Additional Notes

• The Ford Fairmont map light specifications cover model years 1978-1983 and reference three distinct bulb types across that span: the 105, 214-2, and 906.
• The 105 bulb is the most frequently specified type in these records, appearing across the 1980, 1981, and 1983 model years.
• The 105 is a single-filament bulb rated at 12V and 13W, fitted with a BA15s bayonet base. It is classified as a variant of the widely used 1156 bulb family.
• The 214-2 is a festoon-style bulb with an SV8.5 base and a 41mm length, rated at 12V and 12W. Festoon bulbs mount by pressing their end caps into spring clips rather than inserting into a socket.
• The 906 is a T10 miniature wedge bulb rated at 12V and 8W. Wedge-base bulbs rely on the tension of the socket contacts rather than a separate base locking mechanism.
• All three bulb types conform to ANSI standards applicable in both the United States and Canada.
• The three bulb types use physically incompatible mounting systems: the BA15s bayonet base of the 105, the spring-clip festoon mount of the 214-2, and the wedge base of the 906 are not interchangeable with one another.
• The wattage varies across the three types, with the 105 drawing 13W, the 214-2 drawing 12W, and the 906 drawing 8W, meaning substitution between types would also alter the power draw at the socket.