1. Custom Fit Vehicle Wiring
  2. Tekonsha
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  4. Trailer Hitch Wiring
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T-One Vehicle Wiring Harness with 7-Way Trailer Connector

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

Item # 118281
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Custom Fit Vehicle Wiring

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Custom Fit Vehicle Wiring 118281 - Custom Fit - Tekonsha
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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 800-298-1624 to order Tekonsha custom fit vehicle wiring part number 118281 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.
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  • Reviews (35255)
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  • Why etrailer?

Tekonsha Custom Fit Vehicle Wiring - 118281

  • Custom Fit
  • Trailer Hitch Wiring
  • 7 Blade
  • Tekonsha
  • 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


118281 Tekonsha T-1 T-Connector - 7-Way Connector

Installation Details 118281 Installation instructions

This Product Fits The Following Vehicles



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 T-One Vehicle Wiring Harness Installation - 2019 Nissan Frontier

Rob: Rob here at etrailer.com. Today you're going to be taking a look at the Tekonsha T-One Vehicle Wiring Harness with a seven blade RV style connector on our 2019 Nissan Frontier. Now our Tekonsha wiring harness is going to provide us with the seven way connector at the back of our Frontier, that way we have all of the required lights, like our clearance lights, turn signals, and our brake lights, but it's also going to give us our reverse signal, our brake controller output signal, as well as a 12 volt power source at the back of our seven way.Now I do want to mention that our kit is not going to come with the mounting bracket to mount your seven way plug up to, so you will need to pick up this extra. But here we're using the Pollak seven way mounting bracket that fits our socket perfectly. The socket is going to have a spring loaded door, that way it'll keep all the dirt, debris, and moisture out of the inside, hopefully preventing any kind of corrosion from building up on the contacts.If you're looking to pull a trailer with your Frontier, wiring is going to be necessary, but our seven way not only is going to give us those lighting functions but it's also going to let us add a brake controller later on down the road if we want to, so we have a little bit more control of our trailer. The nice thing about our wiring is the fact that we're not going to have to cut or splice anything.

There's only going to be a few plugs and a few relays to put in and it should only take about 15 or 20 minutes. In fact, let's go and walk through the installation together.To begin our installation, we want to come to the back of our Frontier. Were going to come underneath the rear bumper, and on the driver's side frame rail, we should have three plugs. One of them will probably have a wiring harness in it, but the other two should just have caps in them. We need to pull both of those out.Now it may be a little hard to get your fingers in there and really pressed down on that clip to release it, so what I like to do is take a flat blade screwdriver, and I'll push it in on the center at the same time that I go to pull down.

We're going to pull both of these caps out, the one with the black plug and the one with the gray plug. I will let you know, the gray plug can be a little bit tough to get loose, but we want to make sure we pull both the caps out of those.Now we want to grab our harness. On one end we'll have a green and black plug that's going to match what's on our truck, and on the other end we'll have our seven way connector. Before I plug these into my truck, what I like to do, is I like to put a little bit of dielectric grease to fill up that cavity on each one of the plugs. Hopefully this will prevent any kind of corrosion from building up inside.Then we'll just take our plugs, make sure they go into the connectors and lock and place, give it a quick tug, and we can start routing our seven way connector towards the center of our hitch wherever we're going to mount our seven way plug.

Just keep in mind who are going to need to pick up a seven way bracket to mount it up and depending on which hit you have, you may want to pick up a no-drill bracket as well to mount everything to the hitch.Now we went ahead and mounted our seven way bracket to our hitch because we already have a mounting bracket attached to it. But again if you don't, you can use a no-drill bracket and then pick yourself up a seven pole bracket so you can securely attached to the plug. We'll grab our plug, we'll line it up with the holes. Then we're going to take the included hardware that comes with our bracket, we're going to pass it through, pushing the screw through, then I'm going to secure it down with a locking nut on the back side.We'll do that for all four mounting locations because they're going to give us enough hardware to mount the plug up. Then just use a flat blade screwdriver to tighten down the screws.

Now since they're locking nuts, we shouldn't have to get a wrench. We should just be able to hold it with our hand and tighten them up.Put a little bit more dielectric grease on the end of our connector, and then you can simply just take the plug, line it up with the socket, and plug it in place. A quick tug to make sure it's locked in, and then we'll just tie up all this excess wire underneath where it's not going to interfere with our spare tire and be up out of the way.Now we need to move into the front passenger seat. We're going to open up the door, and right behind this kick panel is where the second part of a harness is going to plug in. We need to remove all these panels here. I'm going to start with the kick panel that connects to the threshold. I'm just going to grab the threshold and start pulling it upward until I can get this panel loose and we get set it aside.Now for this back panel right here where our wiring's going to be going, at the very front of the firewall, we're going to have this plastic fastener holding it in and we should be able to just grab this with our fingers and turn it counterclockwise to loosen it up. Then we want to grab the panel and we're going to pull outward away from the truck until we can get it loose and get access behind there.I'm going to grab our harness, it's going to have three plugs on one side and a large plug on the other. At the very corner right about where we pulled that plastic fastener off, we're going to have the harness that our other section will plug into. You want to line it up, make sure it's facing the right direction, make sure it locks in, give it a quick tug, then we can get ready to plug our relays in to the other side.We're going to have three different relays, two blue ones that are going to be exactly the same. The blue ones are going to plug into the white plugs and they can only go on one way so you don't have to worry about messing it up, plugging it in wrong. Make sure they lock into place, and then our brown relay will plug into the brown plug. Again, they only go on one way so if it's not going on, just flip it around and it should go in.Now with these behind here, there is a good chance that these are going to rattle around and make a decent amount of noise, so in our kit they've provided us with this foam tape. Now remove the backing off of one side. What I'm going to do to one, help the relay stay inside the socket but also dampen the noise, I'm going to wrap each one of the relays with this foam tape so there's less likely a chance that they're going to rattle around or come loose. They do provide us with three pieces so we have enough to cover each one of our relays.Once you have them all plugged in. We just want to tuck all of our relays and the wiring harness behind this panel where it's not going to interfere, you just want to stay clear of any of the mounting points where the panel goes back into place. We'll tuck them all back and then we can reinstall both the kick panels and that threshold panel.Now the final step of our installation is to make sure that all the circuits are working properly. I went ahead and plugged up my tester so we can run through all the lights and functions to make sure they are working, but if you don't have a tester, you can use your trailer at home to verify everything. But if I turn on my headlights, you can see the clearance lights are working, the left turn signal, my right turn signal, my brakes, and even our reverse signal works as well.Now we don't currently have a brake controller in our truck so we're not going to be able to test that function, but if we look at the top where it shows our brake voltage, we can see we are getting a 12 volt signal back there. Now all we have left do is hook up to our trailer and hit the road.But again, I'm Rob here etrailer.com. That'll finish up your look at the Tekonsha T-One Vehicle Wiring Harness with a seven blade RV style connector on our 2019 Nissan Frontier.


Customer Reviews

T-One Vehicle Wiring Harness with 7-Way Trailer Connector - 118281

Average Customer Rating:  4.8 out of 5 stars   (35225 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.

- 118281
by:

Nissan made this easy by having the chassis already wired for a trailer. The extra wires and relays needed from etrailer made this install very simple. Plug, plug and plug then I had trailer lights on a 7-pin - no splicing or hunting for the right wires. Not much skill is required to do this yourself. I added a brake controller at the same time and it also plugged in and runs along the same wiring harness as the lights. I also added a receiver hitch at the same time.


Comments
a year later no problems.
Andy - 12/19/2020


- 118281
by:

The hitch, harness and mounting bracket were a perfect fit at a great price. The videos were a big help. Ashley followed up several times to address my concerns with the order and the installation. This was a very smooth project from the order to the installation. Get it right the first time by using etrailer.com......


Comments
Still working like day one!
Michael R - 07/27/2020


- 118281
by:

Just purchased a new 2019 Nissan frontier with out a tow package. Ordered the tow bar and this required harness. Very simple install in the pass. side kick panel. I am a 25 year auto tech. and this is a easy install.. and same quality as the more expensive brand.



- 118281
by:

Good lord, that was fast and helpful? I didn’t even talk to anyone and I feel like there was a lot of personal attention that went into this! Pricing was half of dealership. Took 29 min to bolt it on and 10 to wire it



- 118281
by:

Can’t go wrong with etrailer.com! Got my order early and it is perfect for my truck.



- 118281
by:

This kit fits exactly and all that is required for my 2008 Nissan Frontier. The kit would benefit to have the mounting bracket for the plug either supplied or as a popup option. I completely overlooked this when ordering and had to source from my local auto repair shop.



- 118281
by:

Great company. Backed the products they sell. Never a bad interaction



- 118281
by:

Our dealer did not use one of these Plug and Play Wiring harnesses. They connected wiring to the existing wiring on our Vehicle. We removed all of the Connections, and extra Wires they added, and connected the wiring connections that were already in our vehicle. The most difficult part was locating the connections that were in clusters of wires and Connections.



- 118281
by:

Great product! Plug and play! Always a good video to reference!????



- 118281
by:
2018 Nissan Frontier

There are several wiring kits available for the Nissan Frontier. This is the one I selected based on price. I have no complaints. The wiring, connectors and workmanship are all excellent. Everything plugged together and works as it should. The only thing I did not do was buy a bracket for the electrical connector. I was able to find one locally. I can recommend this kit.


Comments
Out of sight, out of mind. This wiring kit continues to work fine so I have not had to think about it.
Cliff B - 08/28/2019



- 118281
by:

Everything I needed. Easy to install. Works great!



- 118281
by:
Ram 2500

The Rhino Rack 2500 Series and the Rhino-rack Vortex Aero Crossbars fit like a glove. GREAT quality at a decent price (you get what you pay for). I also purchased the Rhino-rack J-style Kayak Carrier which was also a great product!! I was helped by Karen F and she did a great job from start to finish, thanks Karen!!! I have purchased several items over the years from etrailer, they have very good prices as well as a very knowledgeable staff. This business and its staff are a class act!!!



- 118281
by:
2019 Nissan Frontier

I received my parts a day before it was scheduled to arrive and I installed it easily the next day. Perfect!



- 118281
by:
Nissan Frontier

With the help of etrailer installation video, I was able to complete the installation within half an hour. I didn't order the tester but I believe that the system will work just fine. Great buy for my Nissan Frontier.



- 118281
by:

Great quality



- 118281
by:

This was one of The easiest trailer wiring hornist to install. It is just a plug and play, it took me all of about 15 minutes to install everything. Thanks



- 118281
by:

Makes the total installation look professional. Great Fit



- 118281
by:

excellent prices, product is always as described, great customer support, ive ordered about 7 trailer mounts for my service vehicles and every single time the process was simple, fast shipping, and they check on you periodically to make sure everything was perfect



- 118281
by:



- 118281
by:

Very Professional Result. the Dealership wanted $800 and doing it myself was fast and easy. This is as easy as plugging a Lamp. The video and instructions will give you all the confidence you will need. Your just connecting up the factory harness and includes foam pieces to prevent rattling. 100% Perfect.



- 118281
by:
2019 Nissan Frontier

I"m a total rookie at this and with etrailer's excellent videos I installed it with no problem! Thank yoU!!



- 118281
by:
2016 Nissan Frontier

Plugged right in. Wish they had included the mounting bracket for the receptacle. I had to make find one locally.



- 118281
by:



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- 118281
by:
2019 Nissan Frontier


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Ask the Experts about this Tekonsha Custom Fit Vehicle Wiring

  • Recommendation for 7-Way and 4-Way Trailer Connector on 2019 Nissan Frontier
    The T-One Vehicle Wiring Harness with 7-Way Trailer Connector # 118281 is what you need for your 2019 Nissan Frontier. If the trailer has electric brakes you will also need a brake controller. I recommend using the Redarc Tow-Pro Elite Trailer Brake Controller # RED44FR and custom wiring harness # 3050-S. There are many brake controller options for you and I've linked a page to them, but I personally like the function and the clean mount of the Tow-Pro Elite. If you want to be able...
    view full answer...
  • Can 7-Way and 4-Way Both Install on 2016 Nissan Frontier
    You can install both a 4 and 7-way in place of the 7-way kit part # 118281 that fits your 2016 Nissan Frontier. For that you would also need to go with the part # C55774 and install it instead of the included 7-way of the # 118281 and you'd be set.
    view full answer...
  • Brake Controller and 7-Way Recommendation for 2010 Nissan Pathfinder
    You are going to need to install a 7-way in your 2010 Nissan Pathfinder with the Tekonsha kit part # 118281. What you have on your trailer is probably a 7-way but it's easy to skip counting the center pin of the connector as the seventh pin. For a brake controller I would recommend the Prodigy P3 Brake Controller part # 90195. This is our best selling brake controller because of how well it works and how easy it is to setup. This is a proportional brake controller that senses the amount...
    view full answer...
  • Parts Needed to Install 7-Way and 4-Way Trailer Wiring Harness in 2014 Nissan Frontier
    We have a way to install both a 4-way and 7-way on your 2014 Nissan Frontier but you'll first need to start with the part # 118281 and then replace the 7-way socket with the part # HM40975.
    view full answer...
  • How To Install Item # 118281 On 2010 Nissan Pathfinder
    The T-One Vehicle Wiring Harness with 7-Way Trailer Connector Item # 118281 is the correct harness for your 2010 Nissan Pathfinder. The plug behind the passenger side kick panel can be difficult to locate because of the bundle of wires in that small area. You may have to pull wires out of the way, just be careful not to pull on them so hard you damage them where they are going into the factory plugs. It may be possible that it is taped to other wires, tucked on the backside. As far as...
    view full answer...
  • Is There More than One Way Nissan Vehicles Install Trailer Wiring Using Factory Connections
    Nissan tow package wiring on vehicles like your 2014 Nissan Xterra installs in a few different ways, but since you were able to have the kit work at one point yours was installed properly. The harnesses and relays are just sometimes in a few locations like you mentioned. Sometimes behind the kick panel on passenger side, sometimes at the rear of the vehicle, and sometimes closer to the driver side of the vehicle. What issue are you having? Most likely issues with this setup are related...
    view full answer...
  • Is the Tekonsha T-One # 118281 Without the Relays for a 2017 Nissan Frontier
    We do have just the harness and 7-Way connector available for the Tekonsha T-One # 118281 that fits your 2017 Nissan Frontier. This is found as part # 118282 on our site and is the same kit just without the relays. Since this kit uses a US Car Connector it is compatible with the Hopkins # HM40975 that you referenced. You may also be interested in a No-Drill Mount Bracket like part # 18140 to avoid drilling into your hitch frame or your vehicle.
    view full answer...
  • 7-Way Trailer Wiring Harness Recommendation for 2007 Nissan Frontier with 4-Way
    You should be set as far as relays and fuses go, but the only way we sell the 7-way harness for the 2007 Nissan Frontier is with the kits like the part # 118281 that include the relays and the harnesses.
    view full answer...
  • 7-Way Kit for 2018 Nissan Frontier to Be Used with Curt Echo Mobile Brake Controller
    You do not need anything else with the 7-way harness part # 118281 installed on your 2018 Nissan Frontier to use the Curt Echo Mobile # C51180. You'd just need to plug the Echo into the 7-way and once it's synced to your smart phone you'd be set. All the Echo needs to function is a 7-way that has all of the turn signal circuits active as well as the 12 volt accessory circuit which the # 118281 provides.
    view full answer...
  • Complete Brake Controller And 7 Way Setup For 2017 Nissan Frontier
    Yes we do carry the Redarc Tow-Pro Elite Trailer Brake Controller # RED44FR. Use Plug-and-Play Wiring Harness # RED39FR to install the brake controller on your 2017 Nissan Frontier. This is a simple plug-in installation process, just find the factory-wired connection under the dash and plug the harness into it. The other end of the harness plugs into the controller. If you already have the 7 way trailer connector at the back of your vehicle, then you are all set. If you do not, then...
    view full answer...
  • Parts Needed to Tow with 2011 Nissan Frontier, Hitch, Wiring Weight Distribution
    For your 2011 Nissan Frontier we can definitely help get you setup with a complete towing package including the trailer hitch, weight distribution, and hitch balls. For a hitch the etrailer # e98869 is what I recommend as it has plenty of towing capacity, installs easily, and is rated for use with weight distribution. It has a concealed crosstube as well which makes it a bit less visible as well. For a weight distribution system the best option is the Reese Strait Line part # RP66083...
    view full answer...
    Image 1 for
  • Parts Needed To Install Redarc Tow-Pro Elite Trailer Brake Controller In 2017 Nissan Frontier
    The trim piece in question does come included in the Redarc Tow-Pro Elite Trailer Brake Controller - 1 to 3 Axles - Proportional # RED44FR you were looking at, though you may or may not use it depending on how you decide to mount the knob. There is not a trim piece that is confirmed to fit your 2017 Nissan Frontier at this time. To install the # RED44FR in your 2017 Nissan Frontier you will also need the Plug-and-Play Wiring Harness for Redarc Tow-Pro Trailer Brake Controllers # RED39FR...
    view full answer...
  • Parts Needed to Install 4-Way and 7-Way on 2010 Nissan Pathfinder
    You'll need to start with the 7-way kit part # 118281 on your 2010 Nissan Pathfinder but then would need to just swap out the 7-way with the part # 30955 and you'd have both styles of connectors.
    view full answer...
  • Brake Controller and 7-Way Recommendation for 2009 Nissan Pathfinder
    To install a 7-way on your 2009 Nissan Pathfinder you'd need to start with the part # 118281 which is a confirmed fit. Then to install a brake controller you'd be able to use a plug and play style adapter like the # 3050-P and you'd be set. For a brake controller I would recommend the Prodigy P3 Brake Controller part # 90195. This is our best selling brake controller because of how well it works and how easy it is to setup. This is a proportional brake controller that senses the amount...
    view full answer...
  • Parts Needed to Install 7-Way on 2011 Nissan Pathfinder
    If your trailer does not have brakes your best and easiest route would be to use the adapter part # 37185. Your 4-way plugs into it's 4-way and you have both a 4-way and 7-way with just taillight functions. If you need trailer brakes you'll need quite a few more things. To star you'd need the part # 118281 for a 7-way. But you'd need to swap out the socket to the part # HM40975 as it will install and give you both the 4 and 7-way. For a brake controller I would recommend the Prodigy...
    view full answer...
  • 2006 Nissan Pathfinder LE 7-Way Trailer Wiring Recommendation
    We have a 7-way that fits your 2006 Nissan Pathfinder but it is not the Hopkins kit that you mentioned. Instead you'd want the part # 118281 which is a confirmed fit and would work well. If you are looking for a 7 and 4-way that you could replace the 7-way of the # 118281 with you could use the part # HM40950.
    view full answer...
  • 7-Way Trailer Connector Compatible With Trailer Surge Coupler for 2015 Nissan Frontier
    It sure will! The # HM43534 is a replacement for the factory provided 7-way. If your truck is a US market vehicle that didn't come with the factory 7-way, you'll need to use # 118266 which includes the necessary relays to activate the tow package. If you have a Canadian market truck, use # 118281 Assuming your trailer has an electric lockout on the surge coupler that prevents the brakes from actuating when the truck is placed in reverse, any of the options mentioned above would work...
    view full answer...
  • Will Relays Be Needed to Upgrade Existing 4-Pole Trailer Connector on 2014 Nissan Frontier to 7-Way
    If the relays and jumper harness used with the 4 pole like # C56226 (see linked install video) are already in place behind the passenger side kick panel, then the Tow Ready # 118267 will work just fine. If your aftermarket 4-pole simply tee'd in at the junction between the taillight assemblies and the vehicle taillight harness, you'd want to go with the complete kit like # 118281
    view full answer...
  • How Can I Get Power to my 7-Way Connector on my 2006 Nissan Pathfinder without a Tow Package.
    The Hopkins Plug-In Simple Vehicle Wiring Harness for Factory Tow Package - 7-Way and 4-Flat Connectors part # HM11143325 is for vehicles as a replacement to the already existing 7-way. Since you didn't have that connector you will need the kit that contains the relays and harness that will activate the tow package for this use the Tekonsha T-One Vehicle Wiring Harness with 7-Way Trailer Connector part # 118281.
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Isabelle B
Updated by:
Isabelle B
Employee Alexander C
Written by:
Alexander C
Employee Jonathan Y
Video by:
Jonathan Y
Employee Robert C
Test Fit:
Robert C

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