Installation Guide for 04-08 Ford F-150 Headlights
THIS GUIDE IS FOR
NOTE: Some vehicle require the DRL harness installed for the headlight to function properly.
Do NOT use dielectric or any type of weather sealing grease on connectors or sockets.
Doing so will result in connection problems and will not be covered under warranty. Please click HERE for further explanation.
Table of Contents
Disclaimer: This installation article is a tutorial guide. By reading this article, you agree it is for reference only and AlphaRex USA and its distributors make no guarantee on the finished results. Under no circumstances whatsoever shall AlphaRex USA nor its distributors be liable for any damage, misuse or personal injuries. If you do not fully understand the installation procedure, it is highly recommended that you seek help from professional mechanics to do the installation.
INSTALLATION TOOLS
1/4 Ratchet
Power Tool
Metal Panel Popper
Phillips Screwdriver
Flat Screwdriver
1/4 Extension
Socket
Size NEEDED
NOTE: Whenever using a power tool, please make sure do not overtighten the screws.
PART I - REMOVE HEADLIGHTS
DISCONNECTING THE NEGATIVE BATTERY TERMINAL
Whenever working on your vehicle always start by disconnecting the negative battery terminal.
REMOVE THE COVER
Start by removing (2) screws that is holding up the plastic cover.
Remove the screws and set it aside for later reinstallation.
REMOVE THE HEADLIGHT BOLTS
In order to remove the headlight you will have to remove 3 X 10mm bolts.
One bolt on the top and 2 bolts on the side of the headlight.
Please follow the same step for the other side.
REMOVE THE HEADLIGHTS
Lift up the plastic tap and pull the headlight assembly outwards from your truck.
Please follow the same step for the other side.
Unplug the sockets and remove the parking light bulb from each side of the headlight.
Remove both headlights and ready for installation.
PART II - INSTALL HEADLIGHTS
ROUTE THE DRL HARNESS
With both headlights disconnected, now it’s time to install the DRL harness. You will need to
connect the red wire to battery’s positive terminal, the black wire to battery’s negative terminal.
In order to tap the fuse you would need to route the DRL grey wire through the firewall and
to the passenger side fuse box (located at the kick panel)
Fuse box is located under the passenger side kick panel
TAP THE FUSE
In order for the DRL to function during the day, you will need to tap the grey wire into fuse #18.
Next, route the DRL harness to the other side of headlight and secure it into a safe area with zip tie.
PLUG AND INSTALL HEADLIGHTS
Connect the DRL wire and plug in the light sockets to the new ALPHAREX headlights.
Secure all of the headlight bolts and reverse the removal process to complete installation.
Please follow the same process for the other side of headlight.
TEST THE HEADLIGHT FUNCTIONS
Test the functions of your ALPHAREX headlights to ensure everything works properly.
ADJUST HEADLIGHT LEVEL
Once everything has been tested aim your ALPHAREX headlights by parking 25ft from a wall and
level the headlight evenly.
Turn clockwise: to lower the light
Turn counterclockwise: to raise the light
COMPLETE INSTALLATION
Congratulations! you have completed the installation for ALPHAREX 04-08 Ford F-150 Headlights.
