HID Headlight Install 5th Gen 4Runner

 In 4Runner, 4Runner Mods, 5th Gen 4Runner Mods

HID Headlight Install 5th Gen 4Runner – Kensun (Install)

4Runner Low Beam HID Headlighs

Complete Overview and Installation of 5th Gen 4Runner HID Headlight Bulbs

These headlights are bright. Incredibly bright. We have the Xenon Depot LED low beam and high beam headlights in our 4Runner now and these headlights are much brighter. But, all HID headlights are supposed to produce more light output than LEDs, so we are not surprised. 

After installing and running a few different sets of LED headlights on both 4Runners, it does look like HIDs are the way to go. It really depends on your specific needs, though. Before making the choice, please read this overview on 4Runner HID lights and our overview on 4Runner headlights. This will give you a much better idea of HID lights, LED lights and which lights are best for certain applications.

For me, I really like the look of these HIDs compared to LEDs. The light output is much brighter and covers a better wide angle as well. These specific HIDs also have a very straight beam pattern which is very similar to the Xenon Depot LEDs that we are running right now, but they are just brighter.

How much are these HIDs?

5th Gen 4Runner HID Headlights

Affordable. These are by far the best priced and highest-quality light output HID headlights that you can get for your 4Runner. Coming in at under $80 for a set, there is no reason why you can’t run these HID headlights in your 4Runner. Most other HID headlight kits for the 5th Gen 4Runner (higher-quality headlights) come in at over $150+ and sometimes $200+.

These HID headlights would be a good middle ground and a good option to get your feet wet in seeing if you even like the look of HIDs over the halogen bulbs. This HID light bulb is obviously not the highest-quality you can go with, but if you are ballin’ on a budget, these less than $80 HID lights kick ass!

Jimmy at Snail Trail 4×4 and I were seriously impressed with these HIDs over the stock halogen bulbs and the LEDs that are installed in my 4Runner.

In any case, these are a really good HID kit for your 4Runner.

The HID Bulbs for 5th Gen 4Runner

  • 5th Gen 4Runner HIDs: Check Today’s Price
  • Relay Harness not Needed
  • Self-tapping screws
  • Zip Ties always help
  • Optional: Threading key
  • Optional: Double Sided 3M

Overview on the Kensun HID Headlights

Most 4Runners are compatible with this low beam HID headlight kit, however, there are variations of each 4Runner make and model. Please check and confirm that this HID kit will work on your 5th Gen 4Runner or if you need to make any modifications to your 4Runner in order to run this low beam HID kit. Just as a disclaimer the low beam HID bulb produces an incredibly high-voltage electrical gas discharge and is much more powerful than all the other 4Runner headlights we have covered. 

Installation by an experienced mechanic or person with general automotive installation experience is recommended. Be sure to professionally consult a technician for this installation as faulty or insecure installation can result in problems and or shock. This installation process is a little more advanced than the 4Runner LED Headlight Installation, but not by much. 

As always before installing a set of headlights please let your 4Runner engine cool down completely before starting the install process of the low beam HID bulb. Place your 4Runner in park and turn your headlights off before starting this installation.

Don’t Touch the HID bulb

Avoid unnecessary and rough handling of the bulbs. Throughout the process, just make sure not to touch the low beam HID bulb. It is always recommended to wear gloves while installing the low beam HID bulb.

Touching the bulbs with bare fingers may cause oil spots. If the bulbs are not clean you may wipe the bulbs with a dry cloth or rubbing alcohol, however, do not immerse or soak the bulbs in any liquid. DRL‘s or daytime running lights alarm lights and auto headlights should also be turned off before your installation. 

Overview on the 4Runner HID Headlight Installation

The Kensun low beam HID bulbs come well packed so they don’t get damaged while shipping. All the protective packaging should be removed prior to the installation process. There is a small plastic housing covering the HID bulbs so you need to be careful not to hit the vacuum tube while removing this plastic cover.

There is also a plastic ring at the bottom of the HID bulbs which you will need to remove as well. After you remove this plastic ring you will then replace the red rubber grommet at the bottom of the HID bulb. 

For the actual install process, you want to start by opening the hood and removing your dust caps which are covering the housing for your low beams. After you have the dust caps removed you will need to drill a 1″ hole in the center of your dust cap out. The rubber grommet that is secured to the HID headlights will fit into this 1″ hole. After you have the 1″ hole cut into your dust cap you will then need to feed the HID headlight bulb wiring through this hole.

After you wire up your low beam HID headlights, you will then need to mount your ballasts with the provided brackets. You want to find a secure place on the firewall of your 4Runner to mount the bracket and ballasts. After the bracket ballasts are mounted you can then zip tie the remaining wires together in order to clean things up.

Brief warnings on the low beam HID Headlights

  • Do not disassemble or modify the ballasts
  • Do not disassemble or modify the wiring harness
  • Do not touch the lightbulbs until after they have cooled off
  • Keep the system and all components away from paper cloth or anything flammable
  • Be certain that your 4Runner is started before turning the headlights on. These headlights are incredibly powerful and will drain your battery pretty quick if left on without the car running
  • Do not position the lightbulbs in an upward direction or at on coming Drivers
  • You will want to adjust your headlights. You should angle your lights down so they are not blinding oncoming traffic (we will touch on this later on the page).
  •  For any repairs or replacements console a technician or just return the product

HID Low Beam Headlight Install on 5th Gen 4Runner

Before we get started, you may need to reverse the polarity on one or maybe both of your lights. This is very simple. We will do another full post on this topic, but for now, just understand how the process works in short. In each bulb, you have a positive and negative. To reverse polarity, just means you swap the positive and negative in the housing and plug it back in.

If you need to reverse the polarity on your lights, just use a small screwdriver and pop both connections lose from the HID headlights that connect to your 4Runner. Once you have the housing off, just turn it around (180 degrees) and then put it right back on. This will reverse the connection on your HIDs to the 4Runner OEM light harness.

This might be only difficult part of the install. But the whole process including the reversing of polarity is pretty simple.

Quick Tip for Mounting Ballasts

You will need additional hardware if you want to mount your ballasts to the firewall. You can use hardware or heavy duty double sided 3M. Either way, you will need something. Heavy duty double sided 3M is obviously going to be cheaper.

The HID Bulbs for 5th Gen 4Runner

  • 5th Gen 4Runner HIDs: Check Today’s Price
  • Relay Harness not Needed
  • Self-tapping screws
  • Zip Ties always help
  • Optional: Threading key
  • Optional: Double Sided 3M

Snail Trail 4×4 Video Install

4Runner HID Install Step #1 – Remove Dust Cap

4Runner HID Install Step #1 - Remove Dust Cap

4Runner HID Install Step #2 – Remove Bulb

4Runner HID Install Step #2 - Remove Bulb

4Runner HID Install Step #3 –  Remove Cap and Ring on HIDs

4Runner HID Install Step #3 -  Remove Cap and Ring on HIDs

4Runner HID Install Step #4 – Adjust Rubber Seal Ring

4Runner HID Install Step #4 - Adjust Rubber Seal Ring

4Runner HID Install Step #5 – Wire HID System to Ballasts

4Runner HID Install Step #5 - Wire HID System to Ballasts

4Runner HID Install Step #6 – Drill 1″ Hole in Dust Cap

4Runner HID Install Step #6 - Drill 1" Hole in Dust Cap

4Runner HID Install Step #7 – Feed HID Wiring Harness

4Runner HID Install Step #7 - Feed HID Wiring Harness

4Runner HID Install Step #8 – Adjust Rubber Grommet

4Runner HID Install Step #8 - Adjust Rubber Grommet

4Runner HID Install Step #9 – Inside of 4Runner Dust Cap

4Runner HID Install Step #9 - Inside of 4Runner Dust Cap

4Runner HID Install Step #10 – Plug-In HID Bulbs & OEM Connection

4Runner HID Install Step #10 - Plug In HID Bulbs

4Runner HID Install Step #11 – Test HID Headlights

4Runner HID Install Step #11 - Test HID Headlights

4Runner HID Install Step #12 – Find Somewhere to Mount your Ballasts

4Runner HID Install Step #12 - Find Somewhere to Mount your Ballasts

4Runner HID Install Step #13 – Remove Air Injection Pump

4Runner HID Install Step #13 - Remove Air Injection Pump 

4Runner HID Install Step #14 – Mount Bracket on Ballast

4Runner HID Install Step #14 - Mount Bracket on Ballast

4Runner HID Install Step #15 – Mark Your Location

4Runner HID Install Step #15 - Mark Your Location

4Runner HID Install Step #16A – Drill Hole in Firewall (May need to Thread out)

4Runner HID Install Step #16 - Drill Hole in Firewall (May need to Thread out)

Step #16B – Threading Firewall

4Runner HID Install Step #16 - Threading Firewall

4Runner HID Install Step #17 – Mount HID Ballast

4Runner HID Install Step #17 - Mount HID Ballast

4Runner HID Install Step #18 – Zip Tie Loose Wire

4Runner HID Install Step #18 - Zip Tie Loose Wire

4Runner HID Install Step #19 – Reinstall Air Injection Pump

4Runner HID Install Step #19 - Reinstall Air Injection Pump

Driver Side:

  1. Remove Battery
  2. Repeat the Same Process as above
  3. This process is the exact same on the driver side.

Aligning and Adjusting your 4Runner HID headlights

DOT requirements are very strict these days on exactly how bright your headlights can be. This is a general guide on how to adjust the headlights and fitment of your headlight beam pattern on your forerunner. We recommend you see an expert for the best alignment for your 4Runner HID headlights but this should suffice.

  • Park your car on level surface 25 From the wall
  • Remove the trim around the headlights and locate the adjusting screws on your 4Runner.
  • Headlight adjustment screws are typically found adjacent to the headlight, there should be one screw at the top of the headlight to adjust vertically and another screw to one side the headlight to adjust horizontally. And some cars there may be adjusting bolts rather than screws.
  • Use a screwdriver or socket to adjust the screws or bolts on your 4Runner headlight housing
  • Turn screw or bolt clockwise to raise the headlight and counterclockwise to lower the headlight. Turn the side screws or bolts to move the headlight left or right
  • You want your headlights to be 38 inches to 40 inches above the ground at 25 feet away. This means your headlights hitting the wall must be 48 inches from the ground. The beam pattern of the 4Runner HID headlights should be completely flat at 40 inches above the ground on the wall.  

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Showing 2 comments
  • Tim
    Reply

    How do you know if you need to reverse the polarity of the lights? Looking to make this upgrade soon and I don’t want to leave any steps out!

    Thanks in advance.

    • Brenan - Trail4R
      Reply

      Tim,
      You will find out once you turn your lights on and test everything. You want to install the lights on one side and test. If they do not turn on, then you will need to reverse the polarity. If they do not turn on a second time, then you have a bad bulb. Repeat this step on both sides.

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