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4-Pole Trailer End Connector

4-Pole Trailer End Connector

Item # 18004
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18004 - 4 Flat Draw-Tite Trailer Connectors
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Lowest Prices for the best wiring from Draw-Tite. 4-Pole Trailer End Connector part number 18004 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (29)
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Draw-Tite Wiring - 18004

  • Trailer Connectors
  • Trailer End Connector
  • 4 Flat
  • Plug and Lead
  • Draw-Tite
  • 0 - 5 Feet Long


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



Customer Reviews

4-Pole Trailer End Connector - 18004

Average Customer Rating:  4.7 out of 5 stars   (29 Customer Reviews)


- 18004
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 61443



- 18004
by:

Great product. Hasn’t let me down yet! 716894



- 18004
by:

It did the job, I soldered all of my connections followed by shrink tubing. 657021



- 18004
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. 526617



- 18004
by:

Exactly what I expected and worked grea t. 517979


Comments
No problems. Very happy with the product.
Matthew - 06/05/2019

56226

- 18004
by:

Fast shipping. Good packaging. Easy to install. Well made. All in all a great buy! 491744



- 18004
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. 489561


Comments
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!
Aaron - 03/27/2019

51093

- 18004
by:

Perfect product. Great installation instructions. Now I need European adaptor to fit European trailer lights. 419261



- 18004
by:

Needs butt connectors, not splitters. 391573



- 18004
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... 308975



- 18004
by:

As ordered and delivered on time. 252588


Comments
Working as expected, solid product.
Wayne - 05/28/2017

24228

- 18004
by:

Seems to be ok but the wire length is much shorter than expected. Will still work fine, just be ware. 241497



- 18004
by:

The product was excellent and worked to perfection. 240143



- 18004
by:

The quick connectors made replacing the old bad trailer connection quick and easy. 235643



- 18004
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. 193099



- 18004
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 157743



- 18004
by:

Great product easy to install don't care for the clips used my own connectors. E Trailer again exceeds all expectations. Thank You 153315



- 18004
by:

Good plug assembly 147281


Comments
Worked very well- good assembly
Ron F - 08/22/2015

14496

- 18004
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. 112138



- 18004
by:

It is what we needed. We are using it as a back up to our other wiring. 103394



- 18004
by:

very quick response from seller. Very Happy ++ 99151



- 18004
by:

As described Appears to be good quality. Have not yet used. 97589



- 18004
by:

Product as described 92985



- 18004
by:

great 88836



- 18004
by:

worked great 70290


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29
Show More Reviews

Ask the Experts about this Draw-Tite Wiring

  • Troubleshooting Trailer Lights that Stop Functioning When Running Lights Come On
    Sounds like your trailer lights have weak grounds. The behavior you described is textbook insufficient grounding. What you will want to do is check the grounds for the trailer taillights, make sure they are attached to a clean metal surface. Also, make sure the main ground from the trailer's wiring connector is attached to a clean metal surface on your trailer frame. I attached an FAQ article on diagnosing 4-way installs for you to check out plus an FAQ article on trailer wiring.
    view full answer...
  • Troubleshooting Trailer Lights Not Working Properly for 2003 Chevy Silverado Factory 4-Way
    If the issues you described are happening when any 4-Way trailer connector is hooked up, we at least know the problem is somewhere on your 2003 Chevy Silverado (we don't need to worry about the wiring on the trailer). What I recommend doing first is simply visually inspecting the 4-Way connector on the truck. Look for any debris or corrosion built up inside the pins that needs to be cleaned out. Corrosion inside the pins can lead to a short, which would explain the crossed-up circuits...
    view full answer...
  • How to Wire a New 4-Way to a Sea Doo Trailer that Has Double Wires
    Sounds like you need to redo the wiring of the new 4-way completely. Typically, the green wire runs to the right turn/stop circuit, the yellow runs to the left turn/stop circuit, the brown wire runs to the taillights and the white is the ground that runs to the trailer frame. If you have double wires or, "wishbone wires," on your trailer but the new connector only has single wires you will want to either twist the double wires together, or use a butt-end connector to run both of the...
    view full answer...
  • Troubleshooting Trailer Tail Light Functions and 2016 Ram 1500
    It sounds like you need to test your trailer connectors. I recommend first using a circuit tester like # PTW2993 to test the pins at the 3 o'clock and 9 o'clock positions. The 3 o'clock position is the right turn and brake pin and the 9 o'clock is the same for the left side that you stated is working. If the 3 o'clock pin works using the tester, then your trailer wiring is the next step. If it is not working first check the F81 fuse. If the fuse is good then you will need to use the...
    view full answer...
  • Troubleshooting Trailer Running Lights Circuit Not Functioning on Fifth Wheel
    First thing you should do at this point is test the 7-way of the wiring harness with a circuit tester part # PTW2993 for voltage on all of the right pins when the taillight signals are being applied. Just like in the video I attached. If the voltage checks out there but the trailer lights still don't function right then the problem is on the trailer wiring. That would mean that problem is either due to a ground issue or a short issue. Make sure that the trailer side connector are...
    view full answer...
  • Troubleshooting Lights on 2006 Palomino Tent Trailer
    Either a bad ground or an overloaded trailer wiring harness on your vehicle could cause the issue you describe. Without knowing anything about your vehicle or which harness you are using its tough to narrow down the source for the problem. It could also be a bad voltage regulator or alternator on the vehicle. If you are using a powered converter that gets its power for the trailer lights from a direct battery connection then the more likely explanation is the bad ground. If you are using...
    view full answer...
  • Troubleshooting Trailer Running Lights with Potential Grounding Problem
    It sounds like you have the lights wired properly, but if the trailer's main white ground wire is not grounded to the trailer frame it is quite possible that some light functions will work while others will not. Often it can happen that a weak ground will allow enough current for some lighting functions to get through, but not enough for other functions. Running lights, which stay on, draw more power than other lights (brakes and turn signals) that are on only briefly. This could be why...
    view full answer...
  • Troubleshooting RV Tail Lights Not Working
    This sounds like a classic case of a ground problem to me because all the other lights are working and you are getting power readings. A bad ground can cause all sorts of issues and for your brake lights only not working, so what I recommend is ensuring your ground wires are attached to bare metal surfaces and free of any paint, dirt or corrosion.
    view full answer...
  • Right Hand Trailer Turn/Brake Fuse on a 2016 Ram 3500
    It sounds like the right hand turn and brake signal lights are not working on your trailer. If that is the case then the first place to check as you mentioned is the fuse box. In the fuse box located under the hood of your 2016 Ram 3500 you will want to check the F81 slot which is a 20 amp yellow fuse according to the owner's manual. This is a micro style fuse, not a cartridge style fuse. You will want to pull the micro fuse and shine a flashlight through the plastic casing to make sure...
    view full answer...
  • Troubleshooting Left Turn/Brake Lights Not Working on Trailer But Testing for Power at Socket
    If you are testing the left brake/turn signal lights on the trailer right at the socket of the assembly itself and getting power, but the lights themselves don't work when the bulbs are in place then my first thought is a weak ground connection on the assembly. Since you would be grounding the circuit tester as well, this basically could be strengthening the ground enough for that circuit so that you get power when testing but not when the bulbs is back in place. Trailer lights will...
    view full answer...
  • What Adapter Converts 4-Way Flat to 7-Way Round Vehicle Connector on 2000 Land Rover Discovery II
    We offer a complete brake controller installation kit, part # ETBC7, that includes all components needed to install a 7-way connector on your vehicle, including connector, wiring and circuit breakers. This kit requires that your vehicle have a working 4-way flat connector installed already (such as the one that will be on the custom harness you are considering). I have included an installation video for the ETBC7 and also an FAQ article on wiring a brake controller. We do offer hardwire...
    view full answer...
  • Troubleshooting Running Lights Not Working on a Trailer Towed by a 1985 Volkswagen Vanagon
    The problem could be with the trailer connector. If you used the 4-Pole Trailer End Connector, # 18004, that you have referenced, it may be causing problems. Your 1985 VW Vanagon requires the Taillight Converter Hardwire Kit with 4 Pole End, # 119178KIT. Your Vanagon has separate turn and stop lights, that is called a 3 wire system. Most trailers use a two wire system so a converter like the # 119178KIT is required to convert the 3 wire system down to a 2 wire system. I have included a...
    view full answer...
  • Troubleshooting 4-Pole Trailer Wiring with No Stop/Turn Signals on Honda Pilot
    In both 4-pole and 7-way trailer wiring the brake and turn signals are carried on the same wires. On a 4-pole connector like the one # 18004 that you referenced the left turn and brake signals are carried on the yellow wire and the right turn and brake signals are on the green wire. On a 7-way vehicle socket, see the linked photo please, the stop/turn signals are carried on the pins at the 3- and 9-o-clock positions. There are several possible causes for the stop/turn lights on your...
    view full answer...
  • Trailer Running Light Fuse Location 2016 Ram 3500
    I pulled up a copy of your owners manual online and it looks like F29 is the fuse slot you are looking for for the trailer running lights circuit. This will be a blue 20 amp cartridge fuse.
    view full answer...
  • Troubleshooting No Running Lights on Camper
    The first thing you are going to want to do is use a circuit tester like # 40376 if needed and test the connector on your truck to make sure all of the functions are working. If they are not use the owners manual and/or the legend on the power distribution box lid to find the locations of any fuses or relays related to the tow package wiring and replace any that are faulty. Next test the adapter. This will tell you if there is a problem in the connector. If the problem is on the trailer,...
    view full answer...
  • Hardwiring a 2004 Ford Taurus
    It sounds like you may have a blown fuse. The yellow wire that you have connected to the Lt green and orange striped wire should carry the left turn/brake signal. The green wire that you have connected to the orange with blue striped wire should carry the right turn/brake signal. the brown wire should carry the tail light signal and the ground wire should be secured to a suitable ground. I would use a circuit tester, item 40376 if needed, on the vehicles wires and verify that the functions...
    view full answer...
  • 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...
    view full answer...
  • Troubleshooting Trailer Turn Signals Not Functioning on a Nissan Frontier
    Most likely you have a some missing or blown relays on your Nissan Frontier as this is a fairly common issue. The relays are available individually as part # 38666-1. The blue relays control the turn signals, and it sounds like that's what you're missing. I've linked you to a photo showing where the relays are usually located, and also to a video showing the same thing.
    view full answer...
  • Replacing 5-Wire, 4-Way Wishbone Trailer Connector w/4-Wire Connector Causes Lights to Fail
    On your trailer you originally had what is called a wishbone harness. This type of harness has the running light circuit split at the connector so one wire will run to the left side, the other to the right side. This is so you do not have to have a jumper wire between the 2 lights. What you could do is connect just one of the brown tail light wires, tape up the other, and have a jumper go from one side to the other. The other thing you can do is use a new 4-Way wishbone wiring harness...
    view full answer...
  • Troubleshooting Trailer Wiring Where Not all Circuits Function Consistently
    Sounds like an intermittent ground connection which is causing bizarre behavior from your trailer lighting. Trace the ground wire from the connector on the trailer and make sure it's making a solid connection to the trailer frame. You can also try running a jumper wire from it to the ground wires of the light assemblies and the should help as well.
    view full answer...
  • Troubleshooting Boat Trailer Lights That Blew Fuse
    If your trailer caused the vehicle's fuse for trailer lighting to blow, then there could be a fault on the trailer. Your best bet is to disconnect the trailer wiring from the tow vehicle and test the vehicle connector to confirm if it operates correctly on its own. You'll need a circuit tester like # 40376 as well as a helper to activate the vehicle's lighting functions while you test the various pins on the connector. Please refer to the linked photo showing a 4-pole flat connector...
    view full answer...
  • 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...
    view full answer...
  • Troubleshooting Trailer Lights Turning off When Brakes are Applied
    What you described sounds like a textbook ground problem. It sounds like the ground is just good enough so that most of the taillight functions work, but when you apply the brakes the ground is not strong enough for that and all of the lights shut off. I would first check the condition of the tail light wiring checking for exposed wire or corrosion and fix as necessary. You should also make sure that if your new tail lights ground through the mounting hardware that the surface they attach...
    view full answer...
  • Troubleshooting Trailer Left Turn Signal That's Not Working
    Without knowing the year, make and model of the vehicle, I can't really provide any specifics but I can provide you some general things to check. The first thing you'll want to do is determine if the problem is in the vehicle or the trailer wiring. The easiest way to do this is to plug in another trailer if one's available and see if the problem persists. If this isn't possible, use a circuit tester like part # 40376 on the trailer connector on the tow vehicle. Activate the left turn...
    view full answer...
  • Trailer Connector Adapter for Towing a Trailer with a Female 4-Way Trailer Connector
    I am not sure why your kayak trailer came with a female 4-way connector. In the trailer industry, the tow vehicle uses a female style trailer connector and the trailer uses a male style connector. This is the general rule. I have not heard of a vehicle coming with a male style trailer connector of any type. I have attached a photo showing what the vehicle side connector should look like and what the trailer side connector should look like. There are two solutions for this situation....
    view full answer...
  • Running Lights Will Not Work on a Big Tex Gooseneck Trailer
    The first thing we need to figure out is if the problem exists on the truck or trailer. To do this you will need a circuit tester such as # 40376 or a meter if you have one. Disconnect the trailer from the truck and have someone sit in the truck to operate the running lights while you test the connector at the back of the truck. The running light circuit should be the pin in the 1 o'clock position on a vehicle side 7-Way connector. If there is power on that pin then the issue is on the...
    view full answer...
  • What Trailer Connector Wiring Fits a 2002 Buick Regal and how do I Install It
    You will need to use the 4-Pole Hardwire Kit, part # 18252. The kit includes the circuit tester and quick splices needed to complete the installation. We have an online video that shows how to do this on a Dodge Neon, but the procedure will be the same.
    view full answer...
  • Trailer and Tow Vehicle Brake Lights Not Working when 7-Pin Trailer is Connected to 4-Pin Vehicle
    On both a 7-Way and 4-Way trailer connector the brake lights and turn signals are on the same circuit so it is strange that the brake lights aren't working. But, brake lights draw more constant power than the running lights or the turn signals so it could be a situation where the trailer lights are causing to much power draw. The first thing I recommend doing is using an adapter to connect the 7-Way on the trailer to the 4-Way on the tow vehicle. You can use # 37185. You will plug the...
    view full answer...
  • Troubleshooting Trailer Blinker that Stays Solid
    First thing you should do at this point is test the 4-way of the wiring harness with a circuit tester part # PTW2993 for voltage on all of the right pins when the taillight signals are being applied. Just like in the video I attached. If the voltage checks out there but the trailer lights still don't function right then the problem is on the trailer wiring. That would mean that problem is either due to a ground issue or a short issue. Make sure that the trailer side connector are...
    view full answer...
  • Replacing 4-Pole Trailer Connector on Snow Bear Trailer
    It sounds like the original wiring harness on that trailer was what is known as a wishbone harness. They will typically have 5 wires, green for right turn/brake, yellow for left turn/brake, white for ground and two brown wires for running lights. Sometimes one brown wire will have a green stripe and the other will have a yellow. This is done so that one running lamp circuit can run down either side of the trailer. If this is the case, you would connect the two running light circuits...
    view full answer...




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