Video: Installing AlphaRex Headlights in 2014-20 Toyota Tundra

Many Tundra owners choose to upgrade various parts of their trucks, and often start with the easy stuff, like headlights, wheels, and tires. AlphaRex makes a complete assembly replacement for the 2014-20 Toyota Tundra. It not only upgrades the truck’s lighting, but also makes it look great in the process.

AlphaRex made this video on how to install their headlights in the Toyota Tundra, which is an easy process. Let’s take a look at some of the major steps involved.

Start by disconnecting the negative battery terminal. Next, remove the four 10mm bolts and two plastic clips on the top of the truck’s grille. Now, you can remove the grille and set it aside. Remove the two 10mm bolts from the inside of the wheel well.

Now, remove the clip from the inside of the trim piece. Once the bolts and the clip have been removed, you can carefully remove the trim piece below the headlight unit. Remove the three 10mm bolts that secure the headlight in place. Lift up on the two top arms to remove the headlight assembly from the truck.

Next, unplug all of the attached lighting harnesses to completely free the headlight unit from the truck. Use your clip remover to detach the wiring harness from the headlight assembly. Remove the side market and turn signal sockets and bulbs from the headlight.

Connect the daytime running light (DRL) harness to the battery. The red wire should be connected to your battery’s positive terminal and the black wire can be connected to either the battery negative terminal or the 10mm bolt on the fender ground.

Locate the IGN fuse and add it to your fuse tap. Crimp the grey wire from the harness to the fuse tap. Reinstall the fuse box cover. Next, plug the black wire from your new AlphaRex unit in to the side marker socket and install the socket in the back of the new headlight housing. Now you can connect all of the Toyota Tundra’s lighting wires to the correct bulb socket and install into the back of the headlight assembly.

Reattach the truck’s light wiring harness that popped from the original headlight assembly. Repeat earlier steps in reverse to re-secure the headlight to your truck. The same steps can be performed to install the headlight on the other side. Reinstall the factory trim and grille.

AlphaRex Tundra Headlights

After testing your new headlights, you’ll need to level them properly. AlphaRex recommends parking 25 feet from a wall to aim. Turn the leveling screw clockwise to lower the headlights and counter-clockwise to raise them.

Adding new headlights to your Tundra can greatly improve its looks while also making it easier to see after dark. Installation takes just a few easy steps, so gather your tools and get started. You can find all of AlphaRex’s headlights here. Be sure to check out its Facebook page as well.

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About the author

Chris Teague

Chris focuses on drawing out the most important facts a consumer needs to know to make the best buying choices for their families and themselves, and does so in an entertaining way that is easy to understand.
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