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4-Pole Trailer End Connector
Draw-Tite

4-Pole Trailer End Connector

Part Number: 18004
In Stock
$7.47
Retail:$25.06
You Save: 70%
Trailer Wiring
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Great Prices for the best trailer wiring from Draw-Tite. 4-Pole Trailer End Connector part number 18004 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (39)
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Draw-Tite Trailer Wiring - 18004

  • Trailer Connectors
  • Trailer End Connector
  • Plug and Lead
  • 4 Flat
  • Draw-Tite


Tow Ready 4 Way Flat Trailer Connector by Draw-Tite, Hidden Hitch and Reese

  • 12" 4-Pole Trailer Connector, Trailer End

Tow Ready # 118004



118004 4-Pole Trailer End Connector




California residents: click here


Video of 4-Pole Trailer End Connector

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for A Closer Look at the 4-Pole Trailer End Connector

Today, we're going to review part number 18004. This is the Draw Tite 4-Pole Trailer End Connector. This is 12 inches long. It also comes with the 4 wire caps to attach it to the wires on your trailer. Basically, the standard 4-way wires would be the white for the ground, the brown for the tail lights, the yellow for the left turn and brake, and the green for the right turn and brake, so when you go to attach this to your trailer, you do want to test the wires using a tester to make sure you connect the wires function to function, because sometimes the colors will not always match up. A good thing to do is to use a tester that we sell separately on our website that you can use to test the wires and then hook these wires using the included wire caps. That should do it for the review on part number 18004, the Draw-Tite4-Pole Trailer End Connector. .

Customer Satisfaction Score:

Ratings & Reviews

4.7

39 reviews

by:

Good product!



by:

Installed easily. I used my own butt splice connectors instead of the ones supplied with the plug.



by:

Great value! Exactly like the original harness plug that came with the trailer 12 yrs. ago. Even comes with 4 wire taps to make a secure waterproof connection.



by:

Great product no issues at all. Product as described & fit properly.

Hisham profile picture

Hisham

12/5/2024

Great like new



by:

Pretty straight forward. I used it to switch my European trailer's connection to be able to connect to my Wrangler's 4-pin trailer hookup.
No issues. works great.

Aaron profile picture

Aaron

3/27/2019

The parts are still on my European trailer and working well! The trailer is a German brand and started its life there in Germany being pulled by my American-spec Jeep Wrangler. The trailer’s wiring and the Jeep’s connections needed to be massaged in order to work. The parts I ordered from etrailer and the writeups for the project on your site made it all possible. Now the trailer is titled and registered in Virginia and enjoying its life on this side of the Pacific!



by:

The wiring harness worked great. I used it to connect a back up camera..Instead of fooling around with getting to the back up wires on the tail lights, I just clipped the harness to the wires on the back up camera(one live, one ground) and plugged that into my 4 pole trailer plug in the back of my pickup. when I turn on my headlights. it turns on the camera. It took all of 3 minutes to do that vs God no how long trying to disassemble and reassemble the tail lights to find a backup wire.



by:

Perfect product. Great installation instructions. Now I need European adaptor to fit European trailer lights.



by:

received the item in 4 business days, just in time to fix my trailer for commercial lawn service.

Never used wire caps before, they are great. My 4 pole trailer harness actually has 5 wires, to my surprise, and I was able to fit both brown (running lights) in the cap and it works fine. I did wrap it all up with electrical tape to be safe.



by:

The video on installing the trailer hitch was very helpful to me. I was fooled by the Trailer End Connector. I assumed it was the wire connector that I needed to attach to my car, and there was no wiring instruction. So I struck out there. Fortunately I had someone who knew what they were doing help me to wire the proper connector to my car. Your service overall was fast and I did appreciate all the help we received from you. Earl Dekat



by:

I ordered the Hidden Hitch with a 4 prong flat blade plug-in, the cover and mount for the plug-in, which I installed on an '09 Hummer. The product seems to be well made, it installed easily and to my surprise it was delivered in two days. Thanks



by:

Great product easy to install don't care for the clips used my own connectors. E Trailer again exceeds all expectations. Thank You



by:

Landlord dog chewed up the wire harness and this new has being doing the trick ever since! (Over a year now)



by:

Fast shipping. Good packaging. Easy to install. Well made. All in all a great buy!



by:

Tough environment for these…need to keep a spare handy



by:

The quick connectors made replacing the old bad trailer connection quick and easy.



by:

I was a little worried about ordering this product because the cost seemed cheap!
After receiving it in the mail I installed it right away and I have to say I am very impressed with the quality of the product.
The entire process from ordering to fast shipping was a great experience. Pricing and shipping was great and I would definitely recommend this store to anyone.



by:

Needs butt connectors, not splitters.



by:

It took a little longer to get than expected, but it arrived in good condition. I have not plugged in the lights to check it out yet. Customer service was great...



by:

Exactly what I expected and worked grea t.

Matthew profile picture

Matthew

6/5/2019

No problems. Very happy with the product.



by:

As ordered and delivered on time.

Wayne profile picture

Wayne

5/28/2017

Working as expected, solid product.



by:

Good plug assembly

Ron F. profile picture

Ron F.

8/22/2015

Worked very well- good assembly



by:

Leonard D. profile picture

Leonard D.

10/29/2025

Have no problem after 1 year of heavy use.



by:

It really was easy to install. And it continues to work well after one year of use.



by:

It did the job, I soldered all of my connections followed by shrink tubing.



by:

The product was excellent and worked to perfection.


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39
Show More Reviews

See what our Experts say about this Draw-Tite Trailer Wiring

  • Wiring New 4-Way Connector on Trailer with 5 Wires
    Going by the colors that you mentioned, it sounds like you have the typical set-up, green wire for right turn and brake, white wire for ground, yellow wire for left turn and brake, brown with green wire for right side running lights, and brown with yellow for left side running lights. If you are using a standard 4-flat connector like part # 18004, you will more than likely be able to connect color for color for the green, white, and yellow wires. As for the brown with green and the brown...
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  • Trailer Turn Signals and Brake Lights Do Not Work But Trailer Connector on Toyota Tundra Works
    Since the brake light and turn signal functions are working on the truck side trailer connector, that indicates a problem on the trailer side. The first thing you are going to want to check is the trailer side connector. Make sure that it is clean and free of corrosion inside and out. Then make sure that the main trailer connector ground is attached to a clean and corrosion free bare metal surface. Next you will want to make sure that the grounds for the lights are also attached to clean...
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  • LED Trailer Lights Stay on When Disconnecting from Tow Vehicle
    Generally you see this situation on a vehicle that has LED lights because there is a power bleed coming from a different circuit into the lighting circuit. LED lights require a lot less power than incandescents, that's one of the biggest benefits of them. So even a very small amount power can be all they need to light up. Your situation is a little different since your trailer's lights should have absolutely no power supplied to them once you disconnect the truck. But since the lights...
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  • Working Running Lights, But No Turn Signals or Brake Lights On Trailer
    You will first want to check the fuses on your tow vehicle. Some vehicles could have fuses for operating the turn signals and brake lights of a towing package. You will want to check if they are installed and working properly. The next thing is to make sure the wires on the trailer plug is wired properly to the trailer. If you have a 4-Way connector on the trailer the white wire is for ground, the green wire for right turn and brake, yellow wire for left turn and brake, and the brown wire...
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  • Where is Trailer Wiring Fuse on 1998 GMC Suburban
    I really wish I could help, but I wasn't able to pull up an online owners manual for your vehicle due to age or find anything on forums.
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  • Troubleshooting Turn Signal Not Working on Trailer After LED Taillight Installation
    Based on what you have said, something is off from the installation of the new LED taillights. When it comes to 4-way wiring like the 4-Pole Trailer End Connector # 18004, the right turn signal/stop and left turn signal/stop run on the same circuit. Since you indicated that the brake lights are working the turn signal should as well unless the wiring is off from your light installation. I would recommend double checking the wires to make sure they are correct. I would also make sure that...
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  • Recommendations for Converting a Trailer with a 6-way Round to a 4-way
    What I would do in your situation is cut off the square connector and install a 4-Pole Trailer End Connector # 18004 instead. This way the wiring harness # 118410 that you ordered will plug right in, and if you ever have to tow the trailer with a different vehicle it would work. You will need to wire the 4-way in by function to the 4 wires that got cut off. You can either use a power source to put voltage on the circuit so that you figure out what wire does what, or you can trace the wires...
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    Image 1 for
  • Troubleshooting Seven Blade Vehicle Side Trailer Hook Up with Constant Power to Right Turn Signal
    Your right turn signal and brake blade are right next to the 12V power on your 7-way. It is not uncommon at all for corrosion or debris to cause a connection between these blades that would cause exactly what you are describing of a constant power on that blade. I recommend using some sand paper and an old toothbrush to really clean those blades and then use some dielectric grease # 11755 to keep the moisture, corrosion, and debris from happening in the future. If cleaning your blades...
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    Image 1 for
  • License Plate Bracket With Light that Has 4-Way Trailer Wiring Connector
    Is this for a front plate you are looking for a light for additional visibility? Or a license plate light for the rear and you want to use like 4-way trailer wiring connection?
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  • All Trailer Taillight Functions Work Except Running Lights
    This could certainly be a grounding issue. When a circuit does not have a sufficient ground, it can cause many different issues. If possible, I recommend checking all of the grounds for your trailer taillights. You will want to make sure the ground has contact with a bare, clean, metal surface of the trailer frame. If there is any rust or corrosion at the light ground, try relocating the light grounds to a suitable location. Another possibility is that the wire for the running light circuit...
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  • How to Convert a 5-Pole Flat Trailer Connector to 4-Pole Flat Connector
    Some 5-Pole flat connectors use a total of 6 wires. They operate as follows: Blue - trailer brakes Green - right hand brake and turn signals Yellow - left hand brake and turn signals Brown/Green - right hand running lights Brown/Yellow - left hand running lights White - ground The brown wires with the yellow and green tracers or stripes are the same circuit. They provide power to the side markers and taillights when the vehicle headlights are on. When converting these to a 4-Pole, the...
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  • Diagnosing, Locating and Repairing Trailer Ground Problem
    My suspicion is that you have a poor ground connection somewhere on your trailer. The fact that everything works fine until the running lights are turned on is the dead giveaway. When the tail lights are turned on, the trailer lighting is drawing maximum amperage through the system. If there is a ground problem, this is when it will manifest itself. There are several places to look for a poor ground connection. Lets start with the trailer connector on the vehicle. Trace the white wire...
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  • Tips to Improve Voltage Drop from Trailer Connector to Back to the Rear Light Assemblies
    I'm not sure I totally believe that the problem is a lack of voltage. It's possible this is the case, but12 volts should easily power a camera designed for a standard 12 volt system. I would recommend taking the camera up near the vehicle battery and try powering the camera straight from the battery as this is where the voltage would be the highest. If the camera works here then it is voltage related. If not, then the camera is most likely defective. Now the reason for the voltage loss...
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  • Troubleshooting No Running Lights When Hooked Up to U-Haul Trailer
    If the running lights on the U-Haul trailer were not working when hooked up to your vehicle, then I first recommend testing the 4-Way or 7-Way (whichever you have) and testing the pins with a circuit tester like # PTW2993. Have somebody run through the lighting functions on the vehicle while you test the pins. If you don't get any power to any of the pins with the running lights activated, then you at least know the issue is somewhere on the vehicle and not on the trailer you hooked up...
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  • How To Wire LED License Plate Light bracket LPL55CB To Exiting 4-way Trailer Connector On Vehicle
    I would be happy to help! To install the Optronics LED Trailer License Plate Bracket # LPL55CB on your 2018 Subaru Outback Wagon and power it through your current trailer connector you will just need to get a trailer end 4-way connector # 18004. You will connect the black wire from the bracket light to the brown wire on the 4-way connector, and the white wire from the bracket light to the white wire on the 4-way connector using heat shrink butt connectors # DW05744-5. Keep in mind that...
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  • Left Turn Signals Not Working When Hooking Up Utility Trailer To Truck
    Sounds like it is a ground problem. I would start with checking the ground of the left tail light of your utility trailer to make sure it is making a good ground. The tail light assembly is grounded to the trailer by either a separate ground wire to the frame or by the bolts of the tail light assembly being attached to the frame of the trailer. You will want to make sure the tail light assembly is fastened to the metal trailer frame securely and making a good ground. If it has the ground...
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  • Troubleshooting Non-Functional Left Trailer Turn Signal in 7-Way Trailer Connector on 2008 Ford F150
    You most likely have a blown fuse. The fuse for the trailer left turn/left brake lamp circuit is in the passenger cab fuse panel in location 42. Replace the fuse, but before plugging the trailer in, you'll want to closely examine the left turn circuit on the trailer to locate the short and repair it, otherwise you'll continue blowing fuses.
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  • Troubleshooting Troubleshooting Trailer Lighting Now Working
    Try putting the tester on the vehicle side connector again and seeing if any of the circuits light up when the door opens. That is really odd you are seeing that so I wonder if you still have some issues on the vehicle side that need to be worked out.
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  • Solutions for Towing a Trailer with a 4-way with a Tow Vehicle with a 7-Way Connector
    I think I have a better solution for you. I would recommend you get an Adapter 7 Pole to 4 Pole # 47345. You would simply just plug this product into the 7-way on your new tow vehicle and you would have a functioning 4-way. This option is nice too because if at some point you do have a trailer with a 7-way connector on it you would still be able to tow it. If you do really want to cut off the 7-way and install a 4-way you could still do this. You would just need to wire by function. For...
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  • Trailer Wiring Recommendation for a 2015 Jeep Compass
    The 4-way connector that comes with the Tow Ready Wiring Harness part # 118539 that you referenced is the standard vehicle side 4-way. It sounds like someone wired up your trailer with the wrong 4-way. So your best option would be to replace it with a # 18004.
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  • Availability of 7 Blade to 4 Pin Round Trailer Plug Adapter
    There is an adapter that will work for you, the Hopkins Endurance Flex-Coil Trailer Connector Adapter # HM47043. This will convert your 7-pole, blade-style vehicle-end connector for use with a 4-wire round connector. I've added a link to a video review of this product for you to take a look at.
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  • Which Fuse For Trailer Running Lights On 2010 Ford F-150
    Since the running lights on your boat trailer are not working when plugged in to your 2010 Ford F-150, but you know the issue is on the truck then I recommend checking Fuse 31 in the engine bay fuse box. This is a 20 amp fuse so if it is missing or blown you will need to replace it with another 20 amp fuse.
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  • Troubleshooting New 7-Way Trailer Wiring Connector on Trailer with Lighting Issues
    Hey Brad, one issue with 6-way wiring that gets a lot of people is that there are two standard 6-way wiring configuration with the only difference being that the 12 volt hot wire and the brake output circuit is swapped. I wouldn't think that is for sure your issue but figured it was worth mentioning. Aside from that it's actually really easy to create shorts between circuits when installing a new connector so I would make sure that all of the wires at the back of your new connector aren't...
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  • Running Lights On 2016 Ford F250 Stopped Working. Is It A Bad Fuse?
    Hello Rick, thanks for reaching out. Since all the other lights work that does sound like your running light fuse it bad. That is the most likely cause and should definitely be the first thing you check.
    view full answer...


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