ALPHAREX Headlights Installation Guide

PART I: REMOVE HEADLIGHTS

INSTALLATION TOOLS

Prepare these tools for installation:

• Metal Panel Popper
• Flat Screwdriver
• Phillips Screwdriver
• Pliers
• 1/4 Ratchet
• 1/4 Extension
• 10mm Socket

Note: Whenever using a power tool, please make sure not to overtighten the screws.

STEP 1. DISCONNECTING THE NEGATIVE BATTERY TERMINAL

Whenever working on your vehicle, always start by disconnecting the negative battery terminal.

[Image description: Close-up image of hands wearing orange gloves carefully disconnecting the negative battery terminal of a vehicle.]

STEP 2. FRONT GRILLE REMOVAL

Open hood and remove 4 push pins that retain the front grille.

[Image description 1: A hand using a panel popper tool to remove a plastic push pin securing the front grille. Image description 2: A vehicle's front bumper trim piece being pulled outwards to detach it.]

STEP 3. REMOVE HEADLIGHT BOLTS

Remove 10mm bolts holding the headlight in place and ready for removal. Please follow the same procedure for the other side.

[Image description 1: The front of the truck with the grille removed, revealing the headlight mounting points. Red circles highlight the locations of the bolts holding the headlights. Image description 2: Close-up view of the 10mm bolts securing the headlight assembly to the vehicle frame.]

STEP 4. DISCONNECT TURN SIGNAL & SIDE MARKER BULBS

While removing the headlights, disconnect the turn signal bulb and side marker plugs. Please follow the same procedure for the other side.

[Image description: Image shows the front of the truck with headlights removed. Red circles highlight the electrical connectors for the turn signal and side marker bulbs.]

STEP 5. SIDE MARKER BULB CONNECTIONS

Remove the side marker bulb and connect it to the new side marker connection.

[Image description: Image displays a single side marker bulb and its corresponding electrical connector.]

STEP 6. TRANSFER TURN SIGNAL BULB AND SOCKET

Transfer turn signal bulb and socket to new headlights.

[Image description 1: The rear of the ALPHAREX headlight assembly, with circular indicators (5a, 5b) pointing to the bulb socket locations. Image description 2: A separate view of the turn signal bulb and its socket. Image description 3: Close-up of the wiring harness connection point on the headlight assembly.]

For models with Sequential turn signal:

• Remove both side marker and turn signal socket.
• Remove all stickers covering the headlight opening.
• Insert the 2-wire pin into the side marker socket and re-install the socket back onto the headlight.
• Install the turn signal socket onto the headlight. Plug the grey color plug onto the socket, locate the black plug and connect that to the turn signal wire from the truck.

PART II: INSTALL HEADLIGHTS & WIRING

STEP 1. INSTALL ALPHAREX HEADLIGHTS & DRL HARNESS

[Image description: Image shows a pair of ALPHAREX LED headlights, showcasing their design for the Toyota Tundra/Sequoia.]

Plug in all connections, including the DRL wire if you are installing the optional harness.

[Image description: Image shows electrical wiring connections being made in the vehicle's engine bay, with a specific connection highlighted by a red circle.]

Available Series: NOVA-Series LED Headlights, LUXX-Series LED Headlights, PRO-Series Halogen Headlights.

STEP 2. TAP THE FUSE & INSTALLING OPTIONAL DRL HARNESS

If you are planning to install the optional DRL harness, connect the red wire from the DRL harness (short end to driver side, long end to passenger side).

For more information about wiring the DRL harness, please read our article about How to wire the DRL harness?

In order for the DRL to function during the day, you will need to tap the grey wire into your IGN fuse.

[Image description: Image shows a vehicle's fuse box. A red arrow points to a specific fuse, indicating where to tap for the optional DRL harness.]

STEP 3. ADJUST HEADLIGHTS LEVEL

Once all light bulb plugs and wires are connected to the new headlights, install your new ALPHAREX headlights to the vehicle. Secure all bolts and reverse the uninstall process to complete installation. Next, aim the headlights at about 25ft against a wall on a level surface for headlights level adjustment.

[Image description: Image shows the rear of an ALPHAREX headlight assembly. Labels clearly indicate the points for 'Horizontal Adjustment' and 'Vertical Adjustment'.]

[Image description: Image displays a wall marked with vertical lines for precise headlight aiming. The projected light pattern from the ALPHAREX headlights is visible against these markings on a concrete floor.]