Ford Maverick Dome Light Bulb Size

Ford Maverick dome light bulbs utilize 2 distinct sizes: 212-2 and 561. The replacement chart covers vehicle production spanning 1970 to 1977.

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
1974-1977	212-2
1970-1973	561

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W.	212-2
ANSI standard (US & Canada). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W.	561

The Ford Maverick dome light uses two distinct festoon bulb types across its production run: the 212-2 for 1974-1977 models and the 561 for 1970-1973 models.
Both the 212-2 and 561 are ANSI-standardized bulbs recognized in the United States and Canada, operating at 12 volts and 12 watts.
A festoon bulb is a cylindrical lamp that mounts horizontally between two contact points at either end of a housing, which is the standard configuration for automotive dome light fixtures.
Although both bulbs share identical voltage and wattage ratings, the 212-2 and 561 are not interchangeable due to differences in physical length and base type.
The 212-2 bulb measures 41mm in length and uses an SV8.5 base, meaning it makes contact through a metal cap fitted around the side of the bulb's end.
The 561 bulb measures 44mm in length and uses end-cap contacts, meaning electrical contact is made directly through metal caps at each tip of the bulb rather than through a side-mounted base.
The 3mm length difference between the 212-2 and the 561 is a critical fitment factor, as a bulb that is too short or too long will not seat correctly within the dome light housing.
The base type distinction between the SV8.5 of the 212-2 and the end-cap design of the 561 means the two bulbs require physically different socket configurations and cannot be substituted for one another.