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Ford Mustang Headlight Bulbs Replacement Guide
How to change the low/high beam and turn signal bulbs in the headlights of a revised 5th generation 2010-2014 Mustang.

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2012 Mustang Headlight
Dual Low & High Beam
Look Behind Housing
This automotive maintenance tutorial was specifically written to assist owners of the updated fifth generation (2010, 2011, 2012, 2013 & 2014) Ford Mustang in changing a burnt out combination low & high beam bulb or the front turn signal light bulb in the headlight housings.

Owners of the earlier 5th generation Mustang from 2005 to 2009 and possibly the 4th generation 1994 to 2004 models with similar headlight assemblies may also find these DIY instructions to be helpful.

Replacement bulbs for the 2010 to 2012 Mustang with their part numbers are as follows: Dual Beam Headlight # H13 and Front Turn Signal # 3457.

The 2013 (and perhaps also the 2014 models) use a D3S HID (high intensity discharge) headlight bulb and a 7444NA turn signal bulb.

No tools are needed to change any of the headlight bulbs.

Headlight Bulb Socket
1/4 Turn Counter Clockwise
Remove Headlight Bulb
Pop open the hood and move to the side of the vehicle with the burnt out bulb.

Reach in behind the headlight housing and rotate the base of the low/high beam bulb 1/4 turn counter clockwise.

Pull the bulb straight out of the socket.

Release Power Plug
Old Sylvania H13 Bulb
12V 60/55W
Press the release button on the electrical connector and slide it straight off the base of the old bulb.
Red Rubber Dust Gasket
Insert New H13 Bulb
Push On Power Plug


Make sure that the red rubber o-ring is still in place on the headlight socket.

Try to avoid touching the glass part of the new halogen bulb with your fingers or anything greasy in the engine bay. If you do get the bulb dirty, wipe it clean with an alcohol moistened paper towel.

Insert the new H13 bulb straight in to the socket and rotate it 1/4 turn clockwise to secure it in place.

Push the power plug straight on to the base of the new bulb until it clicks securely in place.

1/4 Turn Clockwise - Lock
Turn Signal - Inner Corner
Tan/Orange Bulb Socket
The front turn signal bulb is located at the inner part of the headlight assembly.

Reach in behind the housing and rotate the tan/orange turn signal bulb socket 1/4 turn counter clockwise.

1/4 Turn Counter Clockwise
Remove Bulb Socket
Pull Out Old 3457 Bulb
Pull the turn signal bulb socket straight out of the housing.

Pull the old bulb straight out of the socket and push in a new # 3457 bulb (or 7444NA for the 2013 and possibly 2014 Mustang).

Re-Insert Bulb Socket
1/4 Turn Clockwise
Test New Headlight Bulbs
Re-insert the socket in to the housing and rotate it 1/4 turn clockwise to lock it in place.

Test the new bulbs by turning on the headlights, flashing the high beams, and activating the hazard signals.

For more, check out my other Ford Mustang Repair & Maintenance Guides.

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