For the 2011 Ford Taurus, the headlight bulb fitment depends on the headlight type. Models with halogen headlights use a 9005 bulb for both the low beam and high beam. Models with HID headlights use a D3S bulb for both functions. Verify the headlight configuration before ordering, since these bulb types are not interchangeable.
Other listed exterior lighting includes a 3457A bulb for the front turn signal and parking light, plus a 168NA front side marker and 916NA rear side marker. The rear turn signal uses 7440A, while the reverse light uses 5008. Brake and tail lighting is listed as 3157R, with 916 also listed for the tail light. The center stop light is LED, and the license plate light uses 6418. No fog light bulb fitment is listed for this model year.