Ford F-150 Glove Box Bulb Size

The Ford F-150 glove box light uses bulb sizes 161, 194, and 1891 depending on the specific version of the vehicle. Available data covers the range from 1975 to 1996.

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
1992-1996	161
1988-1991	194
1985-1986	1891
1975-1979	1891

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 1W.	161
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W.	1891

Other Locations

Additional Notes

The Ford F-150 glove box uses three distinct bulb types across its model years: the 161, 194, and 1891, all of which conform to ANSI standards recognized in both the United States and Canada.
All three bulb types are miniature wedge-base designs, meaning they use a wedge-shaped plastic base that seats directly into a socket without a separate metal base or bayonet pins.
The 161 and 194 bulbs share the T10 wedge form factor, while the 1891 uses the smaller T5 wedge form factor. Despite the shared T10 base between the 161 and 194, the two are not interchangeable due to their differing wattage ratings.
The 161 bulb is rated at 1W, making it the lowest-wattage option among the three types listed in these specifications.
The 194 bulb is rated at 3.78W, the highest wattage of the three, and was used in the Ford F-150 glove box from 1988-1991.
The 1891 bulb operates at 2W and fits a T5 wedge socket, which is physically smaller than the T10 socket used by the 161 and 194. This size difference means the 1891 is not a drop-in substitute for either of the other two types.
The Ford F-150 glove box used the 161 bulb from 1992-1996, representing the most recent bulb type in these specifications.
The 1891 bulb was specified for the Ford F-150 glove box across the widest span of years in these specifications, covering 1975-1979 and 1985-1986.
All three bulb types operate on a 12V electrical system, consistent with standard automotive voltage.
A direct swap between the 161 and 194 is inadvisable despite their shared T10 base, as the wattage difference of approximately 2.78W could affect socket compatibility and circuit load.