Mercury Villager Dome Light Bulb Size

The Mercury Villager dome light utilizes bulb sizes 211-2, 212-2, and 1003 depending on the specific version of the vehicle. Available information covers a range of years starting from 1962 through 2002.

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
1995-2002	211-2
1994	212-2
1993	211-2
1962-1967	1003

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W.	211-2
ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W.	212-2
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.	1003

Other Locations

Additional Notes

The Mercury Villager uses the 211-2 bulb for the dome light across the 1993-2002 model years, with the single exception of 1994, which calls for the 212-2 instead.
Both the 211-2 and 212-2 are ANSI-standard festoon bulbs rated at 12V and 12W, sharing an SV8.5 base and a 41mm length, which means their physical form factor is identical.
Despite their identical physical and electrical specifications, the 211-2 and 212-2 are catalogued as distinct part numbers, and substituting one for the other in the 1994 Mercury Villager may not reflect the correct fitment designation.
The SV8.5 base designation on festoon bulbs refers to a cylindrical lamp held in place by spring-loaded contacts at each end, rather than a twist or bayonet mechanism.
The 1962-1967 Mercury Villager dome light specification calls for the 1003 bulb, which is a single-filament type with a BA15s bayonet base rated at 12V and 21W.
The BA15s bayonet base on the 1003 bulb uses a single locating pin, distinguishing it from dual-pin bayonet variants and making it non-interchangeable with festoon-style sockets used in later model years.
At 21W, the 1003 bulb draws notably more power than the 12W festoon bulbs specified for later Villager model years, reflecting a difference in the electrical load placed on the dome light circuit.
The 211-2 and 212-2 bulbs both carry ANSI standardization for the US and Canadian markets, as does the 1003, indicating all three types conform to recognized North American automotive lighting standards.