For the 2012 Lincoln Navigator, both the low-beam and high-beam headlights use D3S bulbs. Confirm the existing bulb and headlamp assembly before ordering, especially if replacing both functions at once.
Fog-light fitment is listed with two options: H11 LED and H16 LED. Front turn signals may use 3157A or 906NA, while the front parking light uses 3157 and the front side marker uses 194NA.
At the rear, the reverse light uses 921. Brake-light fitment is 4057R, and the rear turn signal uses 4057. The tail-light listing includes 4057R and 906, so check the bulb being replaced. Center-stop and license-plate locations may use 168 or 917. Interior listings include 2825 or 98 for map lights and 578 for the trunk light.