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  1. Custom Fit Vehicle Wiring
  2. Nissan
  3. Pathfinder
  4. 2017
  5. Tekonsha
FITS 2017 Nissan Pathfinder
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Item # 118670
Our Price: $90.44
You Save: 36%
Custom Fit Vehicle Wiring
Confirmed to Fit
2017 Nissan Pathfinder

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118670 - No Converter Tekonsha Trailer Hitch Wiring
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Call at 1-800-940-8924 for expert service. We are your Nissan custom fit vehicle wiring experts, and offer a great price. carries a complete line of Tekonsha products for your Nissan Pathfinder 2017. T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part 118670 from Tekonsha can be ordered online at Complete custom fit vehicle wiring installation instructions and technical support.
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2017 Nissan Pathfinder - T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

  • Trailer Hitch Wiring
  • 4 Flat
  • No Converter
  • Tekonsha

Quickly and easily install a 4-way trailer connector on your Nissan Pathfinder with this custom wiring harness. T-One connector plugs directly into existing wiring.


  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing of wires
    • Locate connection point behind the rear bumper
    • Plug in T-connector
  • Includes required relays to activate functions
  • Constructed of 16-gauge bonded wire
  • Comes with dust cap for 4-way flat connector


  • Maximum amperage:
    • Stop/turn lights: 7.5 amps per circuit
    • Tail lights: 7.5 amps per circuit
  • 1-Year limited warranty


This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located just behind the rear bumper, in the center of the vehicle. Once you've plugged in the tow harness, insert 2 of the blue relays and the brown relay into the included jumper harness. This harness then plugs into the port that is located behind the driver's-side trim panel in your rear cargo area. Plug the remaining 2 blue relays directly into the relay box under your hood.

Once installation is complete, the 4-way flat connector will be stowed beneath your vehicle, near the trailer hitch. A mounting bracket (sold separately) is recommended to keep the connector secure.

It is recommended that you use a small amount of grease on all electrical connections - the plugs on your automobile and the 4-pole connector itself - to help prevent corrosion.

118670 Tow Ready T-1 T-Connector - 4 Wire - Modu-Lite

Installation Details 118670 Installation instructions

California residents: click here

Customer Satisfaction Score:

Customer Reviews

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 118670

Average Customer Rating:  4.8 out of 5 stars   (206 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring.


Perfect match to vehicles systems. Installation was fairly easy to perform with most of the work contributed to disassembly and reassembly of vehicle panels to excess wiring harnesses.


Your video was a big help in letting me install this wiring harness for my 2014 Infiniti QX60. And I am very pleased with the purchase and your team.

Excellent best investment easy installation
Al - 08/15/2022


It took me more than an hour to install the hitch and wire harness
Watch the video how to install . It very easy to install but you going to need a second set of hand to hold the hitch up .

2019 Infiniti QX60

When I opened the large hitch box, I looked down and I could see the harness and plastic bag with harness parts sitting on the bottom. It looked like someone just tossed them in. Then I found the harness box taped to the underside of the hitch and the top of the box opened during shipment. No problem. Everything appears good with no missing parts.

The harness worked out well and still is. My son, who is a mechanic, installed the harness and hitch. It took him a few extra minutes to figure the parts out, but mission accomplished.
Ron S - 01/17/2022


Very easy setup and installation. I used video's provided by etrailer and YouTube and had no issues. Exact plug and play setup for 2018 Pathfinder


It was really easy to install and the video showed every step perfectly. I used the zip ties for the plug until I get the mount kit. The only thing is it didn’t come with a self tapping screw.

2020 NissanPathfinder

Perfect fit for my Pathfinder. Having two individuals for the install is recommended, but one person can get the job done. I can rest assured that the receiver will perform!


I’m not a mechanic. Normal DIY guy who prefers woodworking and home improvement. The instructions were simple enough for me to figure out and the harness works perfectly.


Worked great and easy to install following the videos on your site.


This product was exactly what I needed for adding a hitch and wiring to my 2017 Nissan Pathfinder. The website was super easy to use and the installation video was so helpful. I installed this product myself in less than 30 minutes. Great customer service! Great communication! I will definnitely buy all of my trailer and towing needs from

2013 NissanPathfinder

Great product at a fair price. Excellent packaging. Very easy installation.

Everything was exactly as the included instructions displayed. It took about 90 minutes start to finish with only hand tools. No helper or jack needed.
Although the hitch itself fit the vehicle precisely, I had to remove the towing mount due to it overlapping the frame where the hitch mounts. Not a big deal as the tow truck guy can hook to the new hitch instead.

A note which will likely be frowned upon by eTrailer, if you want to avoid removing the rear threshold, the trim piece, and the cargo compartment, and the huge speaker if installed, there is an alternative.

If you pop off the access grill in the rear side panel, you can carefully cut the nonessential plastic out (using care not to remove the outer area where the grill plugs in) with a heated razor knife, you can easily access the harness plugs.

The only negative was after paying extra for three day shipping, with a limited window to install it, it took FOUR full business days to receive.
Overall, a great experience!


This wiring harness worked perfectly on my 2020 Nissan Pathfinder SV. Installation was fairly straightforward. The etrailer installation video was extremely well done and helpful.


I would have given all these 5 stars if they would have included the screws like they said. And Infiniti changes some connections under the hood so the video doesn't track between the 2019 and 2020 models

100 EVERY time -modular in design is so much better way and meets todays standards
Pat - 05/16/2022


Trailer towing package has worked great and after one year I have had no issues. Price was great compared to dealer cost.

works great with no issues!
Chad M - 05/27/2020


I am very pleased with the customer service that I received from Montrell. He went over my order with me. We talked about what I was using the for. All supplies came to me in a timely manner. I watched the installation video. It made installation very easy. Thanks again for great service.


Watched the installation video and when I installed the wiring harness, it was spot on. Smooth installation. I do control electrical work at a automotive plant and the quality of the parts was equivalent to the parts I use at work. We have high standards on what we use. Great experience.

2015 NissanPathfinder

I installed this wiring kit in my 2015 Pathfinder about a year ago. And, it works perfectly. I use it pulling my boat every weekend.
Part of the installation was a little tricky, but that's entirely due to the way Nissan wired the back of the vehicle. The rear access panel on the driver's side is pretty tight. Apart from that, the installation was easy. And, I found several online videos showing every step in detail.

2017 Infiniti QX60

It works! Can't see how it could be easier. If the instructions are not clear enough, the video on the etrailer site almost does the work for you. Both the hitch and wiring are top-notch quality and I am quite happy.


Great direct plug and play. Very thorough instructions. My 15yr old son installed this with very few questions. He did a great job on the install. Definitely recommend this product and any product etrailer has to offer

Still working like brand new. Highly recommend this product easy install my 11 yr old pretty much installed it with me helping
Shawn B - 07/07/2021

2020 NissanPathfinder

Easy except the black connector. I found it was easier to pry the female part from the wall and connect the two.

2013 NissanPathfinder

The Draw-tite Max-frame hitch receiver arrived on time and was installed within 30 minutes. The wiring harness that was purchased with the hitch was just as easy to install. The installation videos were on point and very helpful.

The products have certainly served our needs, and we are very pleased with our purchase.
Rob - 04/18/2019

2020 Infiniti QX60

Following the directions you can't mess it up! Worked perfectly following the video!


Great price and easy install. The included videos were extremely helpful with the install. Definitely recommend this brand and purchasing from etrailer.

2015 NissanPathfinder

Purchased wiring harness for a 2015 Pathfinder. Harness was simple to install. Took about 10 minutes to connect. Super fast shipping. Received within two days of purchase. Works perfect.

Perfect. Works great for hauling a trailer or using a bike rack.
Scott - 01/25/2019


Easy to install. Solid quality

Show More Reviews

See what our Experts say about this Tekonsha Custom Fit Vehicle Wiring

  • Trailer Wiring Recommendation for a 2014 Nissan Pathfinder
    If you do not have any trailer wiring currently and are looking for a 4-way trailer wiring harness the part # 118670 would be the correct part you should get. This will plug into the harness you found behind your rear bumper and after you make a few more connections it will be complete. If your vehicle had the tow package it would have trailer wiring already.
    view full answer...
  • Trailer Connector Not Working on 2014 Nissan Pathfinder
    The Hopkins wiring harness you purchased for your 2014 Nissan Pathfinder is for models that came with a factory tow package. Since your harness is not working the vehicle probably does not have the factory tow package so it is missing some key components. Using trailer wiring harness # 118670 will provide these missing components and allow the trailer wiring harness to work. The jumper harness installs in the rear most part of the Pathfinder under the floor. I have linked the instructions...
    view full answer...
  • Do Some 2013 Nissan Pathfinders Have Blue Relays for Trailer Wiring Already Installed
    Some Nissan vehicles will have the blue relays already installed. Some will have some but not all. If your 2013 Nissan Pathfinder has them already and the trailer wiring seems to be functioning fine after you installed the # 118670 then you would be ready to tow.
    view full answer...
  • 2013 Nissan Pathfinder Already has Blue Relays in Relay Box Under the Hood
    Your 2013 Nissan Pathfinder might have the factory tow package. Wiring harness # 118670 is for models that don't have the factory tow package and would need those relays and jumper harness included with the harness. If your 4-Way is working then you can just keep the unused relays as spares!
    view full answer...
  • Where is the Vehicle Connector to Install the Tow Ready Wiring Harness 118670
    The vehicle harness plug I believe you are referring to for the # 118670 is in the cargo area of the vehicle. If you check out the picture I attached you will see where exactly. In the install instructions link I attached you will also get walked through the process of accessing it.
    view full answer...
    Image 1 for
  • Where do Extra 2 Trailer Wiring Harness Blue Relays Install on 2013 Nissan Pathfinder
    For wiring harness # 118670 the extra 2 blue relays will plug into the relay box located under the hood on your 2013 Nissan Pathfinder. This box is located near the back of the engine compartment on the passenger's side of the vehicle. There should be a legend showing the functions of each location in the box.
    view full answer...
  • Recommended Trailer Wiring Harness For 2013 Nissan Pathfinder
    The trailer wiring harness I recommend for your 2013 Pathfinder is T-One Vehicle Wiring Harness # 118670. This wiring harness plugs into the vehicle wiring which is located behind the rear bumper. You then install the two blue and one brown relays in the jumper harness. This harness then is installed in the port that is behind the trim panel in the rear cargo area on the driver side. Last, you will need to plug the remaining two blue relays into the relay box located under the hood....
    view full answer...
  • What is Causing Stop and Turn Signals to Stop Working on a 2013 Nissan Pathfinder
    Sounds like that the relays may be the issue. Tow Ready has this relay available, # 38666-1. The blue relays activate the turn and brake signals on your Pathfinder.
    view full answer...
  • 4-Way Trailer Wiring Kit Recommendation for 2013 Nissan Pathfinder
    The 4-way kit you'd want for your 2013 Nissan Pathfinder is the T-One kit part # 118670 which comes with everything you'd need and is a confirmed fit for your vehicle.
    view full answer...
  • Correct 4-Way Trailer Wiring Harness for a 2018 Nissan Pathfinder
    The correct 4-way trailer wiring harness for a 2018 Nissan Pathfinder is the T-One Vehicle Wiring Harness part # 118670 which comes with the needed relays and relay harness.
    view full answer...
  • How to Install a Trailer Wiring Harness on a 2018 Nissan Pathfinder
    For your 2018 Nissan Pathfinder, I recommended the T-One Vehicle Wiring Harness part # 118670 which is a direct fit and will not require you to cut or splice any wires. There are two parts to the harness and both are needed. The first part is a 4-way trailer connector that attaches to a single port under the vehicle near the spare tire. The other part is a harness for the relays that will plug into the fuse box inside the rear hatch compartment. There are only two plugs on the side of the...
    view full answer...
  • Where Do Blue Relays of Tekonsha Trailer Wiring Harness # 118670 Install on 2019 Nissan Pathfinder
    I attached an install video link that shows the # 118670 installing in a 2019 Nissan Pathfinder just like yours. Two of the blue relays and the brown relay install in the rear cargo area under some access panels. Fast forward to the 7 minute mark to see more on this. The other two relays install in a panel under the hood on the driver side which you can see at the 11:30 mark of the video.
    view full answer...
  • Can I Get The Jumper Harness For 2017 Nissan Pathfinder Separately From The T-One Wiring Harness
    Unfortunately, Tekonsha does not sell the jumper harness separately. You will need to get the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector, part # 118670, in order to get this part.
    view full answer...
  • No Lights on T-One Vehicle Wiring Harness for 2015 Infiniti QX60
    The T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # 118670 which is a fit for a 2015 Infiniti QX60 is a plug-in-play harness so there isn't much to troubleshoot. The relay harness installs behind the rear, driver side interior cargo panel and the trailer connector harness installs under the rear bumper on the passenger side. There are three relay that install on the harness and two which get installed in the engine bay fuse box. I recommend making sure the harnesses...
    view full answer...
  • Trailer Wiring Harness Recommendation for 2017 Nissan Pathfinder
    For your 2017 Nissan Pathfinder the correct harness you would need for a 4 way would be the part # 118670. If instead you were looking for a 7-way you would want the # 118273. Even if your vehicle does not have the tow package it has the needed wiring for either connector to install.
    view full answer...
  • Recommended Trailer Wiring Harness for 2014 Nissan Pathfinder
    If your 2014 Nissan Pathfinder has the factory tow package then the correct 7-way wiring harness kit is # 118273. This kit includes the required relays and connects to the vehicle behind the rear bumper. If you want a 4-pole harness or do not have a factory 7-way then the correct kit is # 118670 which also includes the relays and shares the same connection point under the bumper. Some Pathfinders without the tow package may not have the relay box in the back and so this might need to be...
    view full answer...
  • 4-Way Trailer Connector for a 2015 Nissan Pathfinder
    Wiring harness # 118263 is only part of what you would need for your 2015 Nissan Pathfinder. There is also a jumper harness and relays that will be needed to make the harness fully functional and is not included with # 118263 since it is for models that have the factory tow pacakge. To get everything needed I recommend # 118670. It comes with the jumper harness, relays, and the 4-Way harness.
    view full answer...
  • 7-Way or 4-Way Trailer Wiring Recommendation for 2014 Nissan Pathfinder
    The style of trailer wiring you need will be based on the trailer you plan to tow. If it has a 4-way you'd need a 4-way harness part # 118670, or if it has a 7-way you'd need the part # 118273. In most cases if the trailer is smaller and doesn't have brakes what you'd need is a 4-way. Or if the trailer is larger and with brakes you'd need a 7-way. I attached an install video for the 7-way on a 2014 Nissan Pathfinder just like yours.
    view full answer...
  • Trailer Wiring Harness For a 2016 Infiniti QX60 That Attaches Under Passenger Side Bumper
    We do have the wring harness that you are looking for but the manufacturer does not offer this separately from the kit. Therefore, you can use the T-One Vehicle Wiring Harness part # 118670 for 4-way trailer connectors or part # 118273 for 7-way trailer connectors and then just hold onto the others parts you are not using. This option would still be loads more cost effective than getting just the harness from your dealer which is your only other option.
    view full answer...
  • Best Trailer Wiring Harness for Towing Small Trailers with 2016 Infiniti QX60
    The best trailer wiring harness for your 2016 Infiniti QX60 is the Tekonsha part # 118670 which is very easy to install and has the best price. This gives you a 4-way connector which is the most common trailer connector found on smaller trailers like you mentioned. I also attached an install video for this kit for you to check out as well.
    view full answer...
  • Trailer Wiring Recommendation for 2018 Nissan Pathfinder
    For your 2018 Nissan Pathfinder the correct 4-way trailer wiring kit is the part # 118670. If you needed a 7-way instead it would be the part # 118273. The other harness you mentioned is for Nissan Frontiers and older Pathfinders. I attached an install video for the # 118670 for you to check out as well.
    view full answer...
  • Trailer Wiring Recommendation for 2018 Nissan Pathfinder
    Depending on what type of trailer connector you need you'd want the Tekonsha part # 118670 if you want a 4-way or if you need a 7-way you'd want the part # 118273. Both are custom fit kits that don't require any hardwiring. The Tekonsha brand of trailer wiring is our most reliable option we have. I attached install videos for both kits for you to check out as well.
    view full answer...
  • Recommended Trailer Hitch for 2018 Nissan Pathfinder
    For your 2018 Nissan Pathfinder, I highly recommend the Draw-Tite Max-Frame Trailer Hitch Receiver # 76031. This Class IV hitch is confirmed to fit your vehicle and will use existing holes in its frame for a no-drill installation. This particular hitch model does not require any fascia trimming at all - the hitch will bolt up to the frame and sit below the bumper without the need for any vehicle modifications. Fascia simply refers to the outside shell of a vehicle's bumper. I have attached...
    view full answer...
  • Recommended Trailer Wiring Harness for 2018 Nissan Pathfinder
    If you need a 7-Way connector harness (if your trailer is equipped with a 7-Way) I recommend the Tekonsha T-One Wiring Harness # 118273 and for a 4-Way harness (if your trailer has a 4-Way connector) I recommend the Tekonsha # 118670. These are both custom harnesses that will install by simply plugging into the factory ports under the vehicle on the passenger side (see attached image) and inserting the included relays if needed. When available I always recommend Tekonsha branded harnesses...
    view full answer...
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