American Motors Concord Map Light Bulb Size

The American Motors Concord map light utilizes bulb sizes 211-2, 105, 1004, and 561 across various production versions. Available data for the specified lighting components covers the period from 1978 through 1983.

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
1983	211-2
1981-1982	105
1980	1004
1978-1979	561

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W.	211-2
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 13W.	105
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W.	1004
ANSI standard (US & Canada). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W.	561

Other Locations

Additional Notes

The American Motors Concord map light specifications span six model years, from 1978 to 1983, and reference four distinct bulb types across that period.
The 561 and 211-2 are both festoon-style bulbs, meaning they are cylindrical lamps that make contact at each end rather than through a base socket. The 561 measures 44mm in length with end-cap contacts, while the 211-2 measures 41mm and uses an SV8.5 base, making the two physically incompatible despite their similar function and wattage.
The 561 bulb was specified for the 1978-1979 Concord map light, operating at 12V and 12W.
The 211-2 bulb was specified for the 1983 model year, also rated at 12V and 12W, though its shorter 41mm length and different base type distinguish it from the 561 used in earlier years.
The 105 bulb was specified for the 1981-1982 Concord, using a BA15s single-contact bayonet base and rated at 12V and 13W. It is a single-filament lamp and a variant of the widely used 1156 bulb type.
The 1004 bulb was specified for the 1980 model year. It carries a BAY15d dual-contact bayonet base and a dual-filament rating of 12V and 21/5W, making it a variant of the 1157 type. Its dual-filament design is atypical for a map light application.
The BA15s base of the 105 and the BAY15d base of the 1004 are not interchangeable. The BAY15d base has offset pins to prevent incorrect installation, whereas the BA15s base has aligned pins, and the socket housings differ accordingly.
All four bulb types conform to ANSI standards applicable in both the United States and Canada.
The Concord map light used a different bulb type in nearly every distinct period across the six model years covered, indicating that no single bulb type was carried through the full production run.