Ford Thunderbird Engine Compartment Light Bulb Size

The Ford Thunderbird engine compartment light utilizes bulb sizes 906, 89, 631, and 93 depending on the specific production era for the vehicle. Available data covers the range from 1956 through 1997 for the specified lighting components.

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

YearsBulb Size
1989-1997906
1973-198789
1963-1970631
196289
1956-195793

Bulb Specifications

Description Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 8W.906
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, 21W.631
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W.93

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