Installing 05-09 Mustang Turn Signal Bulbs & Lenses

In this edition of writeups, we go over the installation process of adding front turn signals to your 2005-2009 Mustang. Installation can be done without even lifting the car in the air.

  • Tools Required:
    Phillips Screwdriver

If you begin with the driver’s side, you’ll want to turn the wheel all the way over to the passenger side to gain access to the screws holding the inner fenderwell on. Remove them using a phillips head screwdriver along with the one push pin.

Once all three screws are removed, you can peel back the inner fenderwell and gain access to the turn signal lens behind the bumper cover. Now you’ll work on removing the stock turn signal lens. There are two white pins holding the turn signal to the bumper cover. Squeeze one pin at a time and gently pull the lens away to release it from the bumper.

Now, you’ll want to remove the stock bulbs from the turn signal lens before completely removing it from the vehicle. There are two separate bulbs in the lens. (3157 and 194 bulb) Grasp each bulb and turn it counter-clockwise to free it from the housing. The lens should be free now. Remove it from underneath the bumper. It helps to have an extra set of hands here

We are now ready to re-install the new turn signal lens. You first want to find the tab behind the bumper cover. This will help you guide the new turn signal lens into place. The tab is shown below.

Slide the new lens in through the opening in the fenderwell. Align the tab on the new lens with the slot on the bumper cover as shown below.

Secure the other end of the lens with the white pins as shown below.

One of the last steps is to install the new 3157 and 194 Chrome-Amber Bulbs. Using latex gloves, remove the stock bulbs and re-install the chrome amber ones. Then place them in the housing and turn them clock wise to secure them in the new lens. It is important to not touch the glass portion of the bulb with your exposed fingers. The oils from your skin can prematurely wear out the bulb. Once your bulbs are in, turn on your turn signals to ensure they work.

Finally, re-install the inner fenderwell screws to complete your installation. Now you can enjoy the clear look while staying DOT legal. The different turn signal lens and bulb packages can be found on our site here: http://www.stangmods.com/Mustang-Clear-Turn-Signal-Lenses-Side-Markers-s/157.htm

Installing Chrome/Amber Bulbs In 1999-2004 Mustangs

In this write up, we go over the installation process of the chrome/amber turn signal bulbs. Installation is very simple and no tools are required. These bulbs complement clear corner headlamps and turn signals very well. We installed the bulbs in our smoked clear corner headlamps for the 99-04 Mustang. The bulb will fit any application using a 3157 bulb type.

Tools Required:

  • None

First remove the two headlamp pins that secure the headlamp to the vehicle. Simply place your finger under the tab as shown below and pull up. There are two pins per headlamp. These are the only items securing the headlamp to the vehicle.

Once the pins are removed, gently slide the headlamps away from the body of the vehicle. It may take some effort, but eventually they will work free. Once you have some space, unplug the wiring harness from the headlamp bulb. Simply pull up on the tabs and gently release the harness.

Next, remove the wiring harness connected to the turn signal bulb. Depress the sides of the harness and gently pull it off the turn signal bulb. The picture below shows the harness removed from the bulb.

Turn the bulb counter clock-wise to remove it from the headlamp. The picture below shows the bulb partially removed from the housing.

The picture below shows the stock turn signal bulb located in its base. Gently pull the bulb out of the base to prepare for re-installation of the new turn signal bulb.

Take the new chrome/amber bulb and re-install it in the adapter. Be careful not to touch the bulb with your bare hands or fingertips. The new chrome/amber bulb installed is shown below.

Finally, reverse steps one through four and your installation is complete.

The new chrome/amber turn signal bulb shown in action below.

You can find our chrome/amber replacement bulbs here – http://www.stangmods.com/Chrome-Amber-3157-Bulbs-p/00729.htm