How To Replace Tail Light Bulbs. Insert this socket into the opening until it. It is possible for the turn signal or brake light to work but the tailight part to be burnt out - replacing the bulb on your F-250 Super Duty will restore functionality to both.
Turn the bulb connectors counterclockwise exposing the bulb. Insert this socket into the opening until it. Align the socket and new bulb with the opening on the back or bottom of the unit.
Simply twist the tabs counter-clockwise and pull the sockets out of the assembly.
Once you have your replacement bulbs your nitrile gloves and safety glasses on. Some of the other bulbs in the tail light cluster such as the brake light or turn signal may also function as the tail light in your F-250 Super Duty. These lights have stop tail and turn functions. If the filament in the bulb is broken or moves replace it with a new bulb.
