Ford Explorer Automatic Transmission Indicator Bulb Size

The Ford Explorer automatic transmission indicator requires a 194 bulb size for the specific lighting component located within the dashboard assembly. Data for the bulb specifications covers the range from 1991 to 1997.

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
1995-1997	194
1991-1992	194

Bulb Specifications

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

Other Locations

Additional Notes

The Ford Explorer automatic transmission indicator uses the 194 bulb across all listed model years.
The 1993 and 1994 model years are not present in the specifications, while 1991-1992 and 1995-1997 are covered.
The 194 is an ANSI-standardized bulb, meaning its physical and electrical characteristics are governed by a recognized North American standard applicable in both the US and Canada.
The 194 bulb is a T10 miniature wedge type, a form factor that uses a pinched glass base to make direct contact with the socket rather than relying on metal pins or a bayonet fitting.
The 194 operates at 12 volts and draws 3.78 watts, placing it in the low-wattage range typical of instrument panel and indicator lighting applications.
The T10 wedge form factor is shared by several bulb variants, so voltage and wattage ratings should be confirmed before substituting an alternative 194-compatible bulb in the Ford Explorer transmission indicator socket.