Ford Expedition front and rear side marker bulbs utilize 194 size for front applications and 3057, 3157, or 4157 sizes for rear positions, with 168 and 194 sizes available for general side marker installations. The replacement chart covers 1997 through 2023 model years with corresponding bulb size specifications for each production period.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.