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Ford F-150 Tail Light Bulbs Replacement Guide
How to change the brake, turn signal and reverse bulbs in the tail lights of a 12th generation 2009-2014 Ford F150.

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2013 Ford F-150 Tail Light
Open Cargo Bed Tailgate
Remove Upper 8mm Screw
This automotive "how-to" guide was specifically written to assist owners of the twelfth generation (2009-2014) Ford F-150 truck in changing a burnt out brake, turn signal, or reverse bulb in the tail light housings.

Owners of other F-Series trucks or other Ford, Lincoln and Mercury vehicles such as the Super Duty F-250, F-350, F-450, Expedition, Explorer, Edge, Escape, E-150, E-250, E-350, Transit Connect, Flex, MKX, MKT, Navigator and Mountaineer may also find these DIY instructions to be helpful.

Replacement tail light bulbs for the '09-'14 F150 include the following with their part numbers: Brake Light Bulb # 4057, Rear Turn Signal # 4057 and Reverse Light # 921.

The only tools needed to remove the tail light assembly and access all three tail light bulbs is an 8mm socket with a 1/4" drive ratchet.

Remove Lower 8mm Screw
Two 8mm Screws Removed
Pull Off Tail Light Housing
The first two steps are to open the cargo bed tailgate and move to the tail light assembly with the burnt out bulb.

Then remove the two screws on the side of the tail light that were hidden by the tailgate with the 8mm socket and ratcheting wrench by turning them counter clockwise.

Set aside the two screws in a safe place.

Turn Over Tail Light
1/4 Turn Counter Clockwise
Remove Brake Light Socket
Gently pull the tail light assembly off the rear corner of the vehicle and turn it over on the bumper.

If you have trouble removing the tail light, try wiggling it back and forth to disengage the metal and plastic pegs that also hold it in place.

Brake Socket Removed
Brake Light Bulb Removed
Push In New # 4057 Bulb
To remove either of the brake or turn light bulb sockets, grasp them with your thumb and forefinger before turning them 1/4 turn counter clockwise and pull them straight out.

Pull the old bulb straight out of the socket and push in a new # 4057 bulb.

I recommend buying the Sylvania 4057 LL long life light bulbs since they tend to last a long time.


1/4 Turn Clockwise
1/4 Turn Counter Clockwise
Remove Reverse Bulb Socket
The reverse or "back up" light bulb is located within the smaller light grey socket at the center of the tail light.
Pull Out Old # 921 Bulb
1/4 Turn Clockwise
1/4 Turn Counter Clockwise
Rotate the reverse light bulb socket 1/4 turn counter clockwise and pull it straight out.

Push a new # 921 bulb straight in to the socket, insert the socket back in to the tail light housing, and rotate it 1/4 turn clockwise to lock it in to place.

I always buy the Sylvania 921 LL long life light bulbs since they tend to last for a long time.

If you would like to have brighter reverse lights, install some compatible 921 LED bulbs.

Remove Turn Signal Socket
Pull Out Turn Signal Bulb
1/4 Turn Clockwise
Line Up Pegs & Holes
Insert Peg In To Socket
Insert Plastic Spike At Top
To re-install the tail light assembly, first line up the metal pegs and plastic spike on the rear of the housing with the holes in the corner of the truck.
Push Tail Light In Place
Insert Upper 8mm Screw
Insert Lower 8mm Screw
Gently push the tail light housing back in to place.

Insert the upper and lower 8mm screws in to the side of the tail light.

Tighten Both Screws
Ford-F-150-Tail-Light-Bulbs-Replacement-Guide-029 Ford-F-150-Tail-Light-Bulbs-Replacement-Guide-030
Testing New Tail Light Bulbs
Tighten the two screws with the 8mm socket and ratcheting wrench by turning them clockwise until they are snug. Do not over tighten the screws to avoid cracking the plastic housing.

Test the new tail light bulbs by having someone step on the brake pedal, engage the hazard signals and place the transmission in reverse.

For more, check out my other Ford F-150 Repair & Maintenance Guides.

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