Lincoln F4TZ-13N021-B Bulb

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On some models, the front turn signal is in the grille.

Rotate the headlight bulb retaining ring counterclockwise and pull out the bulb socket. To remove the headlight bulb from the headlight housing, turn it counterclockwise and pull it out. On 2011 and later models, remove the headlight bulb by twisting it a small amount counterclockwise. Remove the park/turn bulb and the side marker light in the same manner.

Open the hood.

Test headlight operation, then close the hood.

Disconnect the negative cable from the battery and open the hood.

Align the socket locating tabs with the grooves in the forward part of the plastic base, then push the socket firmly into the base. Make sure the base mounting flange contacts the socket.

These models have a headlight with a separate halogen bulb.

1. Unbolt the headlight housing, pull it out, and disconnect the electrical connectors from the front side marker light, the headlight, and the front turn signal/parking light. 2. To remove the front side marker light bulb holder from the headlight housing, rotate it counterclockwise and pull it out. 3. Remove the side marker bulb from its holder by pulling it straight out. To install a new bulb, push it straight into the holder until it stops. 4. Install the new bulb in the holder by pushing it straight into the holder until it stops. 5. Installation is the reverse of removal.