T-One Vehicle Wiring Harness with 7-Way Trailer Connector

Ordered a Class III hitch for 2006 Xterra with wiring. Seamless transaction fast shipping and perfect fit straight out of the box. One of the easiest transactions I have had. I highly recommend etrailer.com to my friends and those who want professional, fast service. 356180

As with most buyers, I had to reverse the black and blue wires. Other than that it installed quickly and worked fine. Videos helped to make install a breeze along with the fix! 647645

by: Adam F05/28/2019

This was very easy to install. Install video was a big help. I installed this 1 year ago and have not had a problem with it. Took about 30-45 minutes to fully install, and I took my time not to break any of the trim pieces. 647636

These wiring components work perfectly. They were easy to install with the instructions. Anybody can do this. I got the 7-pole connector in this package and also bought a 7-pole to 4-pole adapter with a test light so I could make sure that the connections were working. I also bought the Polak PK12711Y bracket to put on my trailer hitch. I tried the standard bracket from Walmart but they did not match the hole pattern on the 7-pole connector. Carol C recommended the Polak bracket and the hole pattern matched perfectly. I can now pull my trailer. I will return to etrailer for any of my trailer or other vehicle part needs. Thanks you etrailer. 607765

Okay, so I've finally had a day off to fully install the kit in my 2013 Pro-4X Xterra. If you're looking to do the same and are wondering if it has everything you need, don't worry, it does. I didn't time myself during install but I know it took me less than 20 minutes, you don't even have to remove the spare tire to hook up the wiring in the rear. Literally plug and play. It took me a lot more time to figure out where to install the connector. Nissan went out of their way to make this an easy install if you don't have a factory towing package, this kit is worth it. Buy it, use it. 391865

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Great. Havent had any problems and dont expect any. Ive since added a brake controller and airbags. They all work in conjunction perfectly.

Shawn K - 06/11/2018

Not sure whether it is my truck or the harness but the brake lights and aux power where crossed. Took it to a local shop $100 later all is good. Harness is nice. Again I don't now if it was my truck or the harness. If you have a 4 way that works properly your probably fine 599443

Everything plugged in and worked great. Install was easy and fast. I had a few issues with my install and use and etrailer support team was quick to respond to my calls and requests. My only concern is with the trailer brakes lock up issue that's been brought up several times in the comments and reviews sections. I ran into the same issue and wasn't exactly sure on how to fix this just from reading the comments and reviews. I reached out to etrailer to seek details on resolving this issue, turns out etrailer has detailed instruction on how to fix this problem. It would have been nice if this self-help link is presented/available on the product page. http://www.etrailer.com/faq-tb-14-02-Nissan-Suzuki-OEM-Wiring-Harness.aspx 141469

This wiring harness for my 2011 Nissan Frontier (118266, comes with the relays for trucks that are not haul-ready from the factory) is just as advertised. The videos were the most helpful! Please watch them. It took me about 45 minutes to connect the relays inside the cab behind the kick panel on the passenger side, plus the harness at the rear of the vehicle. It took another 45 minutes to install the bracket for the 7-way plug, but that was only because I broke 2 drill bits trying to drill through my bumper. My bad! I tested the installation by hooking up to a trailer before closing everything up, and it all worked perfectly. Just as advertised. 474566

It turns out that the wires in the harnessing were reversed the trailer lights wouldn’t work. A simple reversing if the wires fixed the problem. Good product, as I had previously reported.

Todd - 02/10/2019

Arrived on time. Packaged well. Install was very easy. Did not need to lower exhaust as other have mentioned. Looks great! 604363

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Everything connected/ plugged in as it should but I as other's saw the brakes lock up. Now I cannot use and do even have trailer brake lights 563723

The problem is that Nissan miswired the wiring connectors under some Frontier, Titan and Pathfinder models so that the 12-volt accessory feed is swapped with the output circuit for the trailer brake controller. The easiest fix is to cut the blue and the black wires in the harness feeding the trailer connector and swapping them. You could swap the wires on the trailer, but youd need to swap them back before towing that trailer with another vehicle. Youd also need to swap the wires on any other trailer you tow with that vehicle, so its just easier to do it on the vehicle side of things and have done with it.

-- Mike L - 09/11/2018

Fantastic plug and play installation of your product. Hardest part of the install was wrestling with my panel trim. Thank for your online tutorial and great on time delivery. 601987

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Everything plugged in, simple install. Only issue was the two wire connector at rear of truck had the black/blue wires reversed in connector. Brakes were on all the time. Did not know how to remove the small metal connectors so just cut black and blue wire and reversed them, all good now. The connectors and relays behind kick panel all went together perfect. Also ordered POD control at same time, all plug and play, works great. Except for the time to figure out problem with the black/blue wire connector, it would be 5 star. 418138

The brake contols, wiring harness, relays are all working fine after the first year. Just had the camper out this week and no problems at all. Nice installation and the videos are most helpful. Thanks

Alan V - 08/14/2018

Product is supposed to be a direct fit for Nissan Frontier install. Unfortunately, this was not the case as the blue and black wires are reversed as reported by so many others on this site and other sites (fortunately, I knew to check before hooking up a trailer) . These wires are for constant power and the trailer brakes. Fortunately, there was a video posted on etrailer on how to reverse the pins on the wiring harness that connects the vehicle wiring with the 7 pin connector at the rear of the vehicle. The video showed how to reverse the pins in the 2 pin connector that attaches to the vehicle wiring - the 2 pin connector contains only the blue and black wires. Not too difficult but definitely takes some time due to the process of installing everything on the vehicle, testing, taking parts back off the vehicle, disassemble/reassemble the wiring connector, reinstall on the vehicle and retest. 3 starts because this is supposed to be plug and play - not sure if this is a Nissan issue or the wiring manufacturers issue but I would have preferred to simply plug it in and be done. Also, I purchased the Draw Tite (Item 18138) mounting bracket and it did not work with this harness - the holes did not match up and would have required drilling all new holes. 522505

Ordered this for my 06MY Nissan Xterra. Installation was a breeze, just plug and play. Did find after installation that the 12V feed and the brake controller line at the 7-way plug were reversed after some troubleshooting of an inop brake controller. Not sure if it was a Nissan OEM wiring problem or wiring problem with the product I received. Never-the-less, cut the plug off and put it back on the correct direction. Now everything works at it should. 93080

Most Nissans are wired such that the connector will work properly out of the box. For whatever reason, Nissan wired some with these two circuits flipped, and we have not been able to determine and method or pattern as to which are wired differently. We are working with Tow Ready to find a solution that would not require the user testing the vehicle beforehand.

-- Patrick B - 1/9/2014

To date this product has worked flawlessly. Thank you for the follow-up. I will actually be contacting etrailer in the near future for the same type of system for a 13 Ford Explorer!

Chris J - 02/02/2015

My shopping experience with etrailer online was GREAT! The information presented was thorough and helpful in helping me decide the proper item for my truck. And, in addition, there is a very helpful and useful video so that I can install it myself. Moreover, the price was super and the shipping very fast. What more could one ask for? 727743

Great product for the price! Easy to in stall 726480

by: Jim R11/05/2019

The hitch went on as designed. The wiring required installing a couple relays under the dash (included) but all the wiring worked as it should. I use the hitch all the time. I wouldn’t hesitate to buy from here again. 722793

Worked great Also a U-tube video you posted was extremely helpful with the installation 722238

Speed of delivery was amazing fast for standard shipping which was under 24 hours. Only complaint I have is one of the washers was the wrong size but was quickly rectified 716365

An easy way to get an xterra wired for a trailer. Xterras that didn't get factory tow packages are almost all wired up and this kit finishes the job. I wish the pigtail grey black connectors at the end of the 7 way connector wire were either wired in the other order or had some more slack between the black and grey but it still does the job- just could have been better in that respect as you have to take the whole thing to grey and loop back to black. It will make sense when you see it unless mine was done wrong? 713347

I checked out the installation video we have on a 2014 Xterra and it does show that the wiring harness between the black and gray connectors does not offer much slack. Because of the location of these connectors near the suspension and leaf springs, the wiring harness needs to stay in place and out of the way of these moving parts. I have linked the installation video for you.

-- Victoria B - 10/15/2019

Trailer Wiring Harness Installation - 2014 Nissan Xterra - Video

by: Vince P09/27/2019

Very satisfied with my purchase. Simple, economic. Good experience! 708406

Good service and good products. Place your orders and you get what you pay for, what more could you want . Seems strange that you have to buy a bracket for the seven pole wiring kit. One would think it would be included. The wiring kit seems adequate but maybe a little higher quality would be in order. 706530

by: Larry dk09/16/2019

It works fine with the controller. 704426

by: KT09/13/2019

Worked really good. One of the installation screws had a bad thread. $1.25 fixed that. No problems since. 703412

by: Gerald P09/11/2019

Prior to ordering the wiring harness and mounting brackets for my truck, I called etrailer.com to ensure I was identifying the right products. The customer service person I spoke to was very knowledgeable. The shipment arrived on time. The wiring harness worked and continues to work well (easy install). The bracket however had a slight issue with fit. I spoke to etrailer.com again and they quickly rectified the issues and sent a new bracket at no cost. Things don't always go right, but it is how we respond to issues that matter. These guys have it together. Well done. 700238

The worse instructions I've ever seen. Paid a lot extra to receive wiring plugs to make installation simpler however instructions are not very clear and no mounting bracket for the rear outside plug. If I had known that I would only receive portions of the items needed to complete the project then I would have purchased the product elsewhere. Never use this company again. 677028

We have several product installation videos linked above, one of which shows the harness being installed on a 2008 Frontier. The bracket is not included but is listed on the product description page as a related item.

-- Mike L - 07/29/2019

by: Tim M07/17/2019

The hitch is great, but the screws for the electrical connector have rusted. 671417

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This kit worked great. It took about an hour to install on my 2005 Xterra. The process was just like the video on etrailer.com. The only difference was that I mounted the bracket directly to my bumper instead of the hitch. 670714

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Installed as directed and everything worked - almost. called etrailer, spoke to Derek and he advised me that for my 2011 Nissan Frontier some wiring might need to be switched to correct the problem. He sent me and article with pics to fix the issue, in the attached picture the black and blue wires needed to be reversed. Now everything works fine. Thanks for the great customer service. 668084

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Awesome 666227

Product as described. I have a 2011 Nissan Xterra and the install went perfect. The videos were very helpful to determine where to plug in and also great tips on what other parts are necessary with the rest of the install. 665562

by: Ryan06/20/2019

The unit plugged right in to the factory harness. Installation took about 30 minutes. 660488

by: Tim J.06/19/2019

Very happy. Will order from them again. 660396

I have a 2005 Xterra just purchased. It did not come with the towing package, but before I bought it I found out that everything was there and pretty much plug and play with the right setup. i hunted down a lot of options, including from the trailer rental place for about 250 but was unsure what I would end up with as far as the electrical harness. After a few searches I got a hit from etrailer who advertised two hitches, Curt and one other(so you know which one I picked). I watched all the installation videos, including the add on's. I bought the whole package. Hitch, harness, ( 7 point RV and Marine ready, 7 to 4 adapter for my dump trailer. I also bought the universal bracket to hook up the 7 point adapter. The hitch did not fit my car. It hit the bumper before it would line up with the bolt holes to secure it ,to the holes it was designed to secure it. I had to use a jack to line up the holes, but at the end I got it to fit. I expected to have to modify the bracket, (maybe I will send it to them.) . The hitch actually really did fit, I just had to tweek it a little. Bottom line, I will order again. The product is very high quality, and looks killer on my new vehicle. They have many accessories. Make Nissans Great Again!! Pic coming soon! 656224

by: Dale S06/10/2019

I bought this as a replacement to the same item that was previously purchased. The original one only last one year as it did not have an adequate seal for the outside connector and the inner terminals corroded away. The new one was better designed and seems to be holding up OK so far. Otherwise, the wiring harness went together OK and worked fine. 655820

by: Art B06/09/2019

2009 Nissan Xterra

Purchased this harness and related for my 2009 Xterra. Everything was great - the parts fit, the directions were good, and it all went together as advertised. 655729

I ordered a receiver, wiring and brake controller for my new Nissan Frontier. Christopher was great to deal with and he handled making sure my order was complete and correct. He answered all my questions. The items arrived promptly and I began the install. There were two issues - not unusual, and in both instances a call to etrailer resulted in friendly, knowledgeable folks giving me fast, correct advice/fixes/email articles that made the install a snap. I've forgotten the first women's name (sorry!) Molly handled the second issue and within minutes had the answer to why my trailer brakes were locking. She sent me an article detailing how some of the wiring from Nissan was installed backward, how to diagnose this was my issue and how to correct it. That made short work of that issue. Accept that those of us who do these installs only a couple of times in our life will have questions/issues and buy from the folks who are going to provide the experience and help to make the project quick and enjoyable. I wouldn't buy anywhere else. 654085

Received order in excellent shape but haven't installed it yet. Working with order staff was a very pleasant experience. 643904

So Far so Good Products worked a advert ised 642056

by: George R05/12/2019

Perfect fit! No problem with installation or operation. 641303

Great product. Easy installation. 637733

Everything went better than expected. My order came faster than expected. All is good. Will be ordering more soon. Thanks 633659

The product plugged in with no problems. 632051

The product did not fit that great I had to open the holes up to mount it. 632046

This harness made installing the trailer wiring on my 2011 Nissan Frontier easy. My local trailer hitch installer wanted over $600 to install wiring and the hitch. etrailer had the entire setup to my door for under $200 including the wiring harness, hitch, and bracket for the plug. Installation for the whole package took me about 45 minutes. 628354

Quality product. 625459

Everything looks good so far. It is exactly what I ordered and came in on time. I won't be installing the wiring harness until spring because of snow and salt on roads right now. I will send another review at that time. Thank you 608038

by: William01/13/2019

Easy to install. Plugged in and worked great, still does! Very happy! 597166

I received what I needed and in a timely manner! Thank you 594780

Worked perfectly on my 18 Nissan Frontier. Plug and play with the cable harnesses. I ended up drilling a circular hole in the bumper and installing the plug straight into the bumper with some machine screws as opposed to hanging it off of the hitch. 594201