For the 2010 Ford Fusion, the supplied fitment data lists an H11 bulb for the low-beam headlight. No high-beam bulb fitment is provided, so verify the high-beam application before ordering.
Fog-light fitment is listed as either H11 LED or H16 LED, indicating that the correct choice may depend on the vehicle’s fog-light configuration. Check the existing bulb and housing before replacement.
Other useful exterior applications include 3457A for the front turn signal and parking light, 7443R for the brake and tail lights, 7443 for the rear turn signal, and 921 for the reverse light. The center stop light and rear side marker are listed as LED applications.
Interior and convenience-light listings include 578 for the dome light, 3886X for map lights, 211-2 for the trunk, and 37 for the vanity light. Courtesy and door-mirror locations may use either 2825 or 98.