Ford Ranchero Map Light Bulb Size

The Ford Ranchero map light utilizes 211-2, 1003, 214-2, 631, and 89 bulb sizes depending on the specific version of the vehicle. Available data covers the range from 1959 to 1979 for the components listed.

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
1977-1979	211-2
1974-1976	1003
1973	214-2
1960-1970	631
1959	89

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. 12V, 21W.	1003
ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W.	214-2
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.	89

Other Locations

Additional Notes

The Ford Ranchero map light bulb specifications span model years 1959 through 1979, covering four distinct bulb types across that range.
The 631 bulb is the most frequently specified type, covering the 1960-1970 model years of the Ranchero map light position. It is a single-filament bulb with a BA15s bayonet base, rated at 12V and 21W, and is classified as a variant of the 1156 bulb under the ANSI standard.
The 211-2 festoon bulb is specified for the 1977-1979 model years. It measures 41mm in length, uses an SV8.5 base, and is rated at 12V and 12W.
The 1003 bulb is specified for the 1974-1976 model years. It is a single-filament bulb with a BA15s bayonet base, rated at 12V and 21W.
The 214-2 festoon bulb is specified solely for the 1973 Ford Ranchero. Like the 211-2, it measures 41mm in length and uses an SV8.5 base at 12V and 12W, though the two carry different ANSI designations and are not confirmed as interchangeable.
The 89 bulb is specified only for the 1959 model year. It is a single-filament BA15s bayonet base bulb rated at 12V and 13W, making it a lower-wattage variant of the 1156 compared to the 631, which shares the same base type but draws 21W.
The BA15s bayonet base is shared by the 631, 1003, and 89 bulb types. Despite this shared base, the wattage differences among them mean they are not equivalent replacements for one another.
The 211-2 and 214-2 bulbs share identical physical and electrical specifications, both being 41mm festoon bulbs with SV8.5 bases rated at 12V and 12W, yet they carry separate ANSI designations.
A notable shift in bulb technology occurs between the 1976 and 1977 model years, where the Ranchero map light moves from a BA15s bayonet-base bulb to a festoon-style bulb with an SV8.5 base.
All bulb types listed across the full model year range conform to ANSI standards applicable to the United States and Canada.