Ford Excursion Side Marker Bulb Size

The Ford Excursion side marker uses 194 and 3457 bulb sizes according to the provided data. Information for the specified lighting components covers the period from 2000 through 2005.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Front Side Marker

Years	Bulb Size
2000-2005	194

Bulb Specifications

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

Other Locations

Additional Notes

The Ford Excursion uses the 194 bulb for the front side marker position across all available model years, spanning 2000-2005.
The 194 is classified as a miniature wedge bulb, corresponding to the T10 form factor. This wedge-style base requires no separate metal connector, as the glass envelope itself acts as the retention mechanism within the socket.
The 194 operates at 12 volts with a rated wattage of 3.78W, placing it among the lower-output bulbs in automotive applications, consistent with its use in a marker rather than a primary lighting role.
The 194 carries ANSI standardization recognized in both the United States and Canada, meaning the designation refers to a defined set of electrical and physical characteristics rather than a proprietary specification.
Because the T10 wedge format is shared across many ANSI-coded bulbs, substitution with visually similar bulbs of differing wattage ratings may affect circuit load and is not indicated by the specifications for this application.