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

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

Item # 118266

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Custom Fit Vehicle Wiring

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118266 - No Converter Tekonsha Custom Fit Vehicle Wiring
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Quickly and easily install a 7-way, RV-style trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring - no cutting, splicing or tapping required. Call 800-298-8924 to order Tekonsha custom fit vehicle wiring part number 118266 or order online at etrailer.com. Free expert support on all Tekonsha products. Guaranteed Lowest Price and Fastest Shipping for T-One Vehicle Wiring Harness with 7-Way Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
  • All Info
  • Reviews (161)
  • Q & A (203)
  • Videos (10)
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Tekonsha Custom Fit Vehicle Wiring - 118266

  • Custom Fit
  • Trailer Hitch Wiring
  • Tekonsha
  • 7 Blade
  • No Converter

Quickly and easily install a 7-way, RV-style trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring - no cutting, splicing or tapping required.


Features:

  • Provides a 7-way, blade-style trailer connector at the back of your vehicle to power your trailer's signal lights
    • Compatible with 4-pole, 5-pole, and 6-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing of wires
    • Locate 12-pin wiring harness behind passenger's-side kick panel and insert harness with relays
    • Locate factory harness connection point behind driver's-side rear bumper and plug in 7-way
  • Includes required relays to activate functions
  • Constructed of 16-gauge bonded wire
  • Comes with protective cover for 7-way connector


118266 Tow Ready Wiring Harness - 7-Way - Nissan Suzuki



118266 Installation InstructionsInstallation Details 118266 Installation instructions

This Product Fits The Following Vehicles

2005 - 2019 Nissan Frontier without factory Tow Package

2009 - 2012 Suzuki Equator without factory trailer connector

2005 - 2019 Nissan Frontier without factory trailer connector

2005 - 2012 Nissan Pathfinder without factory trailer connector

2005 - 2012 Nissan Pathfinder without factory trailer connector

2005 - 2015 Nissan Xterra without factory trailer connector

2005 - 2015 Nissan Xterra without factory trailer connector



California residents: click here


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


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




Video Transcript for Tekonsha Custom Fit Vehicle Wiring - Trailer Hitch Wiring - 118266 Review

Today we're going to be taking a look at Part Number 118266. This is the tow-ready vehicle wiring harness. It's going to come with your relays and a 7-way trailer connector. This product fits certain years and models of the Suzuki Equator, Nissan Frontier, Nissan Pathfinder and the Nissan inaudible 00:00:18. The wiring harness is for vehicles without a factory trailer connector. It's going to install very quickly and easily.

You don't have to worry about cutting or splicing any wires during the installation. All you have to do is locate the connection points along the frame rail, plug in the connector, this portion right here, and then this portion right here's going to plug into the back of your new 7-way. It just snaps together like that, very easy to do. This harness right here is going to be the 12-pin connector. This is going to be your relays. They include this which is necessary for a complete installation and to get everything functioning the way it's intended to.

This unit is going to add a 7-way trailer connector to your vehicle. That's going to send power to your trailer. It's going to connect directly to the standard OEM connector which, again, the instructions are going to be included. Those are going to walk you through the installation process step by step and show you exactly where all the connectors are in order to connect this but, again, it does install very quickly and easily. The lid right here is a spring-loaded design for the 7-way connector. It's also going to have the nice gasket right here.

It's going to really limit, if not eliminate, any water from getting into the connector when the lid is in the closed position. It's got the inaudible 00:01:33 on here. This is designed and we also recommend to use a mounting bracket to get this mounted at the rear of the vehicle. That's just going to help you to connect or secure. The custom-fit harness is going to plug into your factory toe package, wiring harness, which is going to be located beneath the rear of your vehicle along the driver's side frame rail.

Again, the instructions are going to point that out really well. Before connecting the actual 7-way itself, you want to plug in the included harness with the relays. These, again, are going to plug into the 12-pin connector at the front of your vehicle. It's got the relay caps included in the little bag. Also in the bag are going to be the zip ties and some foam tape. Now you can use the included cable ties and the foam tape to secure the harness to prevent damage or rattling. Once your installation is complete, the 7-way connector will be stowed beneath the vehicle near the trailer hitch. Again, we do recommend using a mounting bracket. The mounting bracket's going to be sold separately but we do carry those here at etrailer.com. Again, that's just going to help keep the connector secure. It's also recommended that you use a small amount of grease on all electrical connections like the plug on your vehicle and the 7-pull connector itself. That's just going to help prevent any type of corrosion to the connection ports but everything that's needed for a complete installation is included. That's going to do it for today's review of Part Number 118266. This is the tow-ready vehicle wiring harness with relays and the 7-way trailer connector. .


Customer Reviews

T-One Vehicle Wiring Harness with 7-Way Trailer Connector - 118266

Average Customer Rating:  4.7 out of 5 stars   (161 Customer Reviews)

Quickly and easily install a 7-way, RV-style trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring - no cutting, splicing or tapping required.

- 118266
by:
2006 Nissan Xterra

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



- 118266
by:
2018 Nissan Frontier

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



- 118266
by:

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



- 118266
by:
2016 Nissan Frontier

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



- 118266
by:
2013 Nissan Xterra

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


Comments

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

39593

- 118266
by:
2006 Nissan Frontier

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



- 118266
by:
2012 Nissan Xterra

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



- 118266
by:
2011 Nissan Frontier

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


Comments

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

49369

- 118266
by:

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



- 118266
by:
2013 Nissan Frontier

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


Comments

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

43477

- 118266
by:
2015 Nissan Frontier

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



- 118266
by:
2017 Nissan Frontier

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


Comments

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

42306

- 118266
by:
2017 Nissan Frontier

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



- 118266
by:
2006 Nissan Xterra

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


Comments

I have the same issue with 2005 Xterra. I installed 7 pin harness, all travel trailer lights work but brakes lock up when connected to truck. So I need to switch black and blue wires on vehicle harness connector for it to work. This issue needs to be corrected before e-trailer sells this product. I did not buy this harness so I could make modifications on it.

-- comment by: George D - 01/06/2014

2534

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

Comments

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

9205
Comments

I had the same problem with my 2011 Xterra my guess is the Harness may have been manufactured improperly. The 7-way connector from the trailer worked perfectly on a 2013 Jeep Grand Cherokee and a 2005 Toyota 4-Runner. but with my Xterra, the 12V black cable seemed to feed the brake controller because my brakes locked up whenever the trailer was connected and the 12V power blade never saw power. The solution I came to was the same one you did but now nobody can tow the trailer except you! I wish someone would fix this issue.

-- comment by: Nik - 05/26/2015

12033

- 118266
by:

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



- 118266
by:

Great product for the price! Easy to in stall 726480



- 118266
by:

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



- 118266
by:

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



- 118266
by:

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



- 118266
by:

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


Comments

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

62865

- 118266
by:

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



- 118266
by:

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



- 118266
by:

It works fine with the controller. 704426



- 118266
by:

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



- 118266
by:

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



- 118266
by:
2007 Nissan Frontier

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


Comments

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

58389

- 118266
by:

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



- 118266
by:
2005 Nissan Xterra

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



- 118266
by:

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



- 118266
by:

Awesome 666227



- 118266
by:
2011 Nissan Xterra

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



- 118266
by:

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



- 118266
by:

Very happy. Will order from them again. 660396



- 118266
by:
2005 Nissan Xterra

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



- 118266
by:

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



- 118266
by:
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



- 118266
by:
2019 Nissan Frontier

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



- 118266
by:

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



- 118266
by:

So Far so Good Products worked a advert ised 642056



- 118266
by:

Perfect fit! No problem with installation or operation. 641303



- 118266
by:
2015 Nissan Frontier

Great product. Easy installation. 637733



- 118266
by:

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



- 118266
by:
2017 Nissan Frontier

The product plugged in with no problems. 632051



- 118266
by:
2017 Nissan Frontier

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



- 118266
by:
2011 Nissan Frontier

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



- 118266
by:

Quality product. 625459



- 118266
by:
2018 Nissan Frontier

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



- 118266
by:

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



- 118266
by:
2014 Nissan Frontier

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



- 118266
by:
2018 Nissan Frontier

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


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Ask the Experts about this Tekonsha Custom Fit Vehicle Wiring

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  • Trailer Hitch Recommendation for 2018 Nissan Frontier
  • For your 2018 Nissan Frontier the Draw Tite hitch part # 75282 is the hitch I would recommend because it has the best towing capacities, installs very easily and has the best price. The towing capacities are 5,000 lb trailer weight and 750 lbs tongue weight capacity. For trailer wiring the T-One part # 118266 is the correct trailer wiring kit to give you a 7-way that's fully functional. I attached an install video for this kit for you to check out as well. If you wanted to do some...
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  • Recommended 7-Way and Brake Controller for a 2019 Nissan Frontier
  • The wiring that I recommend installing on your 2019 Nissan Frontier so that you have a fully functioning 7-Way is the Tekonsha T-One # 118266 because it is the most reliable option available. This comes with the wiring and relays needed for the installation but you may be interested in the mounting brackets # PK12711U and # C57202 as well to easily mount the 7-Way. If you don't already have a brake controller then I recommend going with the Curt Spectrum # C51170 because it is a proportional...
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  • Recommended Wiring Harness for 2016 Nissan Frontier Without Tow Package
  • For your 2016 Nissan Frontier without a tow package, I recommend the T-One Vehicle Wiring Harness with 7-Way Trailer Connector # 118266. This will allow you to easily connect to your factory wiring and have a 7-way. If you only want the 4-way flat since you are using a small trailer, you can alternatively use the # 118525. Many with even small trailers prefer the 7-way but you can use an adapter like # 47345 or a 7-way with integrated 4-way flat like # HM40950. For the trailer hitch,...
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  • How to Add 4-Way and 7-Way Trailer Connectors on a 2015 Nissan Frontier PRO-4X
  • All of the trailer wiring harnesses that are custom designed to fit your 2015 Nissan Frontier are either a 4-way or a 7-way connector. However, if you install a 7-way harness like part # 118266 and replace the final connector with part # HM40920 you'll have exactly what you're trying to accomplish. Part # HM40920 has both a 4- and 7-way and plugs into the same port that the # 118266 wiring uses. If your adventure trailer has electric brakes then you also need a brake controller. I...
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  • Recommended Wiring Harness for 2018 Nissan Frontier without Factory Tow Package
  • For your 2018 Nissan Frontier, the trailer wiring harness I recommend is the T-One Vehicle Wiring Harness with 7-Way Trailer Connector # 118266. This harness will come with the connections to your factory wiring and also the relays required to activate the factory wiring for proper function. I've attached a video of the install on a 2017 model to assist. This is an easy connection to the factory harness located behind the driver's side rear bumper and passenger side kick panel inside...
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  • Hitch and 4-Pole/7-Way Wiring Kit for 2016 Nissan Frontier Pro4x
  • Curt 2-inch Class III hitch # 13241 is a confirmed fit on your 2016 Nissan Frontier Pro4x and installs easily as shown in the linked video. Written instructions are linked too and these tell you the tools needed and provide detailed information on bolting this on to your truck. To have wiring with both 4-pole and 7-way connectors you can use kit # 118266 for the relays and harness and simply substitute connector # HM40975 for the 7-way-only that is included in the relay kit. This includes...
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  • Relay Harness Needed for 2019 Nissan Frontier
  • I do have a solution for you, but unfortunately nobody currently (as of January 2019) sells just the harness for the relays out of the T-One Kit # 118266 that you referenced. Since you already have the 7-Way wiring and connector the next best thing would be to get the Curt T-Connector # C56225 and install that relay harness which is essentially the same thing. This is just at a lower price point because it is for a 4-Way which is less complicated than the 7-Way wiring harness. I have...
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  • Parts Needed to Change 4-Way on 2012 Nissan Pathfinder to 7-Way for Trailer
  • I do have a solution for you, but the Curt T-Connector # C55774 that you referenced is not a confirmed fit for your 2012 Nissan Pathfinder. If you just need the light functions to work on your trailer then what you will want to use is the Hopkins Adapter # 37185 which will convert your 4-Way to a 4-Way and 7-Way. If you are needing to utilize brakes on your trailer, which is common when they have a 7-Way, you will instead want to install the Tekonsha T-One # 118266. The black plug...
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  • Recommended Trailer Towing Kit for a 2005 Nissan Xterra
  • I do have everything you'll need to tow a trailer with your 2005 Nissan Xterra (trailer hitch, wiring harness, ball mount/hitch ball) but we currently do not have an all inclusive kit. For a trailer hitch confirmed to fit your vehicle, I recommend the Draw-Tite Max-Frame Trailer Hitch Receiver part # 75291 which is a Class III hitch with a 2" receiver tube opening. As you can see in the installation video I have attached for you, the hitch is very simple to install. Then for a trailer...
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  • Troubleshooting 7-Way Trailer Connection Wiring on 2017 Nissan Frontier
  • In your 2017 Nissan Frontier, the Curt brake controller should be installed using the custom wiring adapter # C51382. This should work correctly to give you the proper wiring within your cab. Then you will use the Curt # C56226 or the Tekonsha # 118266 to get the correct 7-way. If you have done this even using the previous relays, check your trailer connection for functions using the attached photo and a circuit tester like # PTW2993. It sounds like the trailer may be mis-wired...
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  • 2017 Nissan Frontier 7-Way Trailer Wiring Connector Recommendation
  • For your 2017 Nissan Frontier we do have a 7-way trailer harness kit that would work well. It's part number # 118266 and comes with everything needed to install a 7-way. I attached an install video for this for you to check out as well.
    view full answer...

  • Which is the Correct 7-Way Trailer Wiring Harness for a 2018 Nissan Pathfinder
  • It definitely sounds like you have experience dealing with at least some aspect of wiring as you are taking all of the correct steps to try and remedy the situation. I have a few things for you to check but for starters, I see that you are using the Replacement Wiring Harness for Tow Ready Nissan Vehicle Wiring Harness part # 118267 which is part of the T-One Vehicle Wiring Harness with 7-Way Trailer Connector part # 118266. The problem is that these wiring harnesses are listed as a fit...
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  • Trailer Brake Controller & Wiring Adapter for 2014 Nissan Frontier
  • To add a trailer brake controller and the appropriate wiring adapter to your 2014 Nissan Frontier you will need the brake controller itself, such as the Power Trac # 39523 along with the wiring adapter # 3050-P. If you have a 7-way no other parts are needed, but if you do not you will also need 7-way/relay kit # 118266. You can refer to the linked video for illustration of the controller install process. The Power Trac is a good value in a time-delayed type controller but most folks...
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  • Trailer Wiring Harness and Mounting Brackets for a 2016 Nissan Frontier
  • We do have a variety of trailer connectors and mounting brackets that you can use on your 2016 Nissan Frontier. If you need a 4-Way Flat connector then the Hopkins # HM43575 will work if you have the tow package. If you don't have the tow package then I recommend the T-One # 118525. You can mount either of these using the Tow Ready # 18144 with a no-drill bracket like part # 18140. For a 7-Way without the tow package use the T-One # 118266 with the mounting bracket # PK12711U and...
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  • Recommended 7-Way Trailer Wiring Harness for 2006 Nissan Xterra
  • The Hopkins Plug-In Simple Wiring Harness # HM43575 referenced in your question is confirmed to fit your 2006 Nissan Xterra, but this will provide you with a 4-Way flat connector and not a 7-Way. In order to install a fully functional 7-Way connector on your vehicle, I instead recommend the Tekonsha T-One Vehicle Wiring Harness # 118266. This custom-fit harness will install by plugging directly into existing ports located under the vehicle, on the driver's side of your Nissan Xterra....
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  • Troubleshooting 2010 Nissan Xterra Trailer Light Relay Locations
  • The T-One Vehicle Wiring Harness with 7-Way Trailer Connector # 118266 like all our harnesses for your Xterra has the 3 relays. The manufacturer doesn't offer the harness separately but you can get the three relays # C57000 separately or the single blue relay # 38666-1. Sometimes these relays are under the hood and other times behind the dash near the steering column. It does sound like you are missing a relay, so you will want to check both of these locations. Nissan has had a few...
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  • Wiring Harness to Add 4-Way Flat Connector on 2017 Nissan Frontier
  • You can add a 4-flat to your 2017 Nissan Frontier; since you do not have the factory 4-flat you would need the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118525. This will plug into your Nissan Frontier's wiring harness, which is located beneath the rear of the vehicle, along the driver's-side frame rail. I've added links to a video review and install of this harness for you to take a look at.
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  • Recommended Trailer Wiring Harness for 2005 Nissan Xterra
  • We do have a nice selection of trailer wiring harnesses available that are confirmed to fit your 2005 Nissan Xterra that doesn't have the factory tow package or connector. Both the 4-Way and 7-Way options will be pretty simple, plug-and-play type installations, so your best bet is to simply choose the connector that matches what you have on your trailer. If your trailer just has a 4-Way connector, then I recommend the Curt T-Connector Vehicle Wiring Harness # C56225. If the trailer...
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  • Upgrading 2017 Nissan Frontier from 4-Way # 118525 to 7-Way
  • On your 2017 Nissan Frontier, since you already have installed the 4-way with the relays # 118525, you will not need to install other relays to upgrade using the # 118266 to the 7-way trailer connector. Your tow package wiring will already be active. You could simply use the wiring connector # 118267.
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  • 7-Way Bracket Recommendation for Use with Trailer Wiring 118266 for 2011 Nissan Pathfinder
  • The trailer wiring harness part # 118266 that you referenced is a 7-way which bolts to a standard 7-way bracket like the part # 319-S7-61 which you referenced. This would be a good option but it will require drilling through the bracket to your rear bumper. The most popular option I would recommend is the part # PK12711U instead which has hole pre-drilled.
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  • Are Additional Relays Needed to Install Trailer Wiring on 2018 Nissan Frontier with the Tow Package
  • To add trailer wiring to your 2018 Nissan Frontier you can use part # 118525 for a 4-way or part # 118266 for a 7-way. Both of the harnesses include all of the necessary relays so you don't need part # C57000 separately. I've linked install videos of both harnesses for you. If your truck doesn't already have a trailer hitch then I recommend the Draw-Tite # 75282. The other two options that fit have lower tongue weight ratings that may be less than what your truck is rated for. I...
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  • 7-Way Trailer Wiring for 2018 Nissan Frontier
  • For your 2018 Nissan Frontier the 7-way kit you'd want the T-One kit part # 118266 because this kit comes with everything you'd need to wire up the included 7-way on your Frontier. All of the relays and harnesses are included. You would also want a 7-way bracket part # PK12711U to mount the 7-way below the rear bumper and you'll be set. I attached an install video for this kit for you to check out as well.
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  • How to Determine if 2011 Nissan Frontier Has Tow Package for Brake Controller Install
  • Look at the rear of your 2011 Nissan Frontier. If you see a round trailer connector like what you see in the attached picture then you have the tow package. That means that you only need the part # 3050-P to install the Prodigy P3 part # 90195. If you do not have the tow package you will also need to install the part # 118266 to give you the 7-way.
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  • Is Relay Included With a Brake Controller for 2010 Nissan Pathfinder
  • If you have a factory installed 7-way trailer connector, the relay you mentioned, part # V38937-1 should already be installed. All you will need is a Brake Controller and the wiring harness like the Tekonsha Prodigy P2 Proportional Brake Controller # 90885 with Nissan Adapter, # 3050-P. If by chance the relay is not installed on your Pathfinder, you would have to purchase that at your dealer. If your Pathfinder is equipped with a 4-way connector, or if there is no trailer connector on...
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  • Wiring Required to Install Brake Controller on 2014 Nissan Frontier Without Tow Package
  • I spoke with my contact at Tekonsha and the Tow Package Wiring Harness Kit with Relays, # 118266, is exactly what you will need in order to install a brake controller on your 2014 Nissan Frontier. This kit plugs directly into the factory connectors on your vehicle. Additional vehicle wiring is not required. When it comes to the brake controller, I recommend going with the Tekonsha Prodigy P3, # 90195, with Plug-In Wiring Adapter, # 3050-P. This brake controller activates immediately...
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  • Installing 7-Way Harness On 2012 Nissan Xterra
  • I see from your recent order that you purchased the Tekonsha Primus IQ brake controller, part # TK90160 and the wiring harness adapter, part # 3050-P. You can simply plug one end of the adapter into the back of the brake controller and the other end into the port located under your dash near the emergency brake pedal and will be taped to another wiring harness. The # 118266 you purchased will plug into the two connectors on the driver side frame rail near the back of the vehicle. You...
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  • Are Pigtails Available from the Tow Ready Part # 118267 for a 2010 Nissan Xterra
  • The Replacement Wiring Harness # 118267 is actually a piece of a few different wiring combinations for your 2010 Nissan Xterra (like part # 118266 for example). This is a whole wiring harness and unfortunately isn't offered in pigtails so you will need to get the whole kit. On the bright side you will be getting a whole new wiring harness with a brand new 7-Way connector from one of our most reliable wiring manufacturers so you know it will last.
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  • Mounting Bracket to Install 7-way Trailer Wiring Harness # 118266
  • I linked a video of when we install the # 118266 wiring harness on a 2008 Nissan Xterra and we used Mounting Bracket # PK12711U along with the No-Drill Bracket # C57202.
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Info for this part was:

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