/
Tekonsha/
Custom Fit/
Trailer Hitch Wiring/
4 Flat/
Powered ConverterItem # 118552
Retail:$88.43
Our Price: $46.95
You Save: 47%To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Orders above $99 qualify for Free Shipping
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. Powered ModuLite reduces strain on wiring system.
Features:
Specs:
Installation
This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located behind the driver's-side and passenger's-side tail lights. You will have to remove the tail light assemblies to access this harness.
Once you've plugged in the T-connector, run the hot lead up to your car battery. Connect the lead to the included fuse holder, and then connect the fuse holder to the positive terminal on your battery and insert the provided fuse.
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.
A ModuLite power module is built into this T-One connector. With a ModuLite, your trailer's lights will be powered without overloading your vehicle's electrical system. Because the module draws power directly from your car's battery and bypasses the electrical routes that are used by a basic wiring harness, there is virtually no draw on your tail light circuits.
Installation Details 
2010 - 2012 Dodge Caliber
2008 - 2012 Dodge Caliber
2011 - 2013 Dodge Durango
2008 - 2010 Dodge Grand Caravan
2008 - 2010 Dodge Grand Caravan
2008 - 2017 Jeep Patriot
2008 - 2017 Jeep Patriot
2008 - 2010 Chrysler Town and Country
2008 - 2010 Chrysler Town and Country
2008 - 2009 Dodge Caliber excluding SRT-4
2011 - 2013 Dodge Durango without factory tow package
California residents: click here
Video of T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today we're going to be taking a look at part #118552. This is the Tow Ready T-1 Vehicle Wiring Harness with a 4-pole flat trailer connector. This fits a few different vehicles so you want to use the vehicle fit guide located on our website to make sure this fits your particular year, make and model. This unit's going to provide your 4-way flat trailer connector at the back of your vehicle to power your trailer signal lights. This unit is compatible with 5-pole, 6-pole and 7-pole adaptors. Those are available and sold separately. The great advantage of a system like this, since it is a custom fit vehicle harness, is it's going to connect quickly and easily.
You don't really have to modify anything. The only wire you're going to have to cut is going to be the included fuse holder. You really don't have to cut or splice any wires. All you have to do is locate the connection points behind the taillights at the rear of your vehicle, plug in the connectors, easy snap-together plugs so you're going to know they're connected, then run the hot lead to the car battery. Hot lead is the red wire coming out of the box.
Your going to extend it and get some extra wiring with the included black wire right here. That's going to give you the length you need to run from the rear of your vehicle all the way to the front to the vehicle battery. The black box is a ModuLite power module that's going to connect directly to the vehicle battery though the wiring, that way it's going to avoid overloading the vehicle's electrical system. This unit is constructed of 16 gauge bonded wire and it's going to come with a dust cap right here for the 4-way flat connector. Simply just fits over the connection points, that way it will protect the connector when not in use and it's just going to keep it safe from the elements. When it comes to the maximum amperage for the stop and turn lights, that's going to be 4.2 amps per circuit, taillights is going to be 7.5 amps per circuit. Very simple installation.
You can see some of the helpful things that it comes with laid out here on the table. You need to gain access to the taillight connectors at the rear of the vehicle on both the driver and passenger side. You're going to plug in the appropriate T-connectors to each side. The side that has the green and white wires, that's going to run to the passenger side of the vehicle. The end with the yellow and brown wires is going to run to the drivers side.
You can see here it gives you extra green wire that way you can make that leap over to the passenger side. Gives you extra wiring so you can make that connection as necessary. The other end goes to the passenger side, that's the green one here. This end goes to the drivers side. Very easy to do. Again, the detailed instructions are going to walk you through the installation process step by step. It's going to include the white wire right here with the ring terminal. That's going to be your ground connection. It also comes with a self tapping screw, that way you can easily get that ground connection made. Then you're going to use the double-sided tape to stick the power module to the vehicle. Nice clean surface is where you want to mount that, so the double-sided tape is included. The red wire is going to connect to the black wire using a butt connector. All the connectors that you need are included. You just crimp those together, then the black wire is going to run all the way to the vehicles battery. It's going to connect to the yellow fuse holder using another butt connector. You just snap or cut the wiring right here in the middle, take one end of the butt connector, connect it to the yellow wiring, take the other end and connect it to the black wire. You'll need to get that crimp down. Again, it's going to include all the necessary connectors, double-sided tape. On the other end of the yellow wire, you're going to attach a ring terminal. That's going to get attached to the positive post on the vehicle battery. Once you have that connected you can install the included fuse. It goes directly into the fuse holder right there, snaps into place, and then you just close the dust cap over top of it. Comes with some zip ties that way you can secure the wiring along the vehicle. Make sure you take all the slack out of that. It's going to give the installation a nice clean look. Then you also want to always be sure to apply some grease, dielectric grease to the connection points on the automobile and the 4-way flat. It's just going to prevent any type of rust or corrosion from being able to settle on the connection points. I'd always double check the instructions. Make sure you have everything attached correctly. Make sure you have everything reassembled as indicated in the instructions. That's going to do it for today's review of part #118552. This is the Tow Ready T-1 Vehicle Wiring Harness with a 4-pole flat trailer connector. .
Average Customer Rating: 4.8 out of 5 stars (299 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. Powered ModuLite reduces strain on wiring system.
everything works like it should if I ever need more items like this one I will buy from your company very satisfied 625528
I remember what was involved in this job before these harnesses. This is a wonderful solution. Very easy to follow instructions make for an easy professional installation. A little patience when running the power wire goes a long way. The factory connections ensure reliable, maintenance free operation. I like the loop on the flat 4 connector that secures to the safety chain loop to secure the connector when not in/not in use. The only shortfall is that there aren't enough zip ties included to properly secure the power wire when routing it to the battery. I would recommend this product if you want a one-and-done trailer lighting solution. 654979
Easily installed. Actually my wife and her friend installed the hitch and wiring. I installed the adapter wiring and attached to the hitch. Seems like a great product. 640523
Works absolutely perfectly on my 2010 dodge caliber. I used some of my own additional cable ties to make sure everything was absolutely secure, as I'm a little OCD about such things. Works perfectly with all functionality tested. 62603
Thank you!Everything works perfectly!I actually have all of those items currently attached on my car. as I type this.Thank you for being a one-stop shop that provides accessories that have been verified to work properly together.
Nick B - 07/16/2014Easy plug and play system worth the money to avoid the aggravation of soldering/crimping and cutting your factory wires. One note about installation of the box in the tail light housing, use a piece of duct tape first to make sure where you mount it will not interfere with the light sockets when reinstalling the light assembly as the two sided tape supplied sticks really well and you can't move it after pressing it down. Instructions were easy to follow and understand. Thanks etrailer for another great product. 504880
This was a perfect and easy install. Two things that I am critical of are very minor but want to point it out as it had me concerned. The first thing was during the order process, the software no longer identified the vehicle the hitch was to fit. Upon arrival and opening the box, paperwork then confirmed the hitch was for the correct vehicle. The second concern was the Drawtite wiring harness instructions. We live in a northern climate where snowfall is common and sodium solutions are used to remove ice from road surfaces. The instructions had the power wire running outside the vehicle and was to be attached with unprotected crimp connectors. In this environment, that is guaranteed not to work in time. I modified the wiring install procedure to run all wiring inside the vehicle by removing panels and placing the wires in the factory protective tracks. The complete system works very well. No interference with the exhaust and all fits real well. 203422
This T-One vehicle wiring harness is exactly what the local hitch installer uses where I live. I know because I called and asked them what they would use to hook up my trailer lights. Their garage is one that I have used in the past on three occasions, I know they do top quality work and I value their opinions. The owner told me they use only this product because they find it the best available. So I bought it and followed the video instructions. It was a snap and it works perfectly. The majority of the install time was taken by running the #10 copper wire up to the battery. I took my time to attach it to the brake lines all the way to the battery area. I needed to use several more nylon ties than were provided in the kit as I am a little bit overly careful and wanted a tie every foot or so. But these ties are cheap so I used many more. I believe that my job has been done better than a shop would have done it for me. They just could not have taken the time that I did. My hitch install, 30 minutes or less, and my light hook up and testing, about 1 hour and 45 minutes totaled less than it would have taken me to drive to the shop, wait for the install and then drive home. On top of that, I would have spent $10 I on gas that is now still in my pocket. Plus I like knowing that my job was done just so! 24177
Huge pain to install. First, you have to drill into your vehicle to ground it, which I don't like. Second, you have to run the wire all the way from the back to the front, tucking and securing it deep along your vehicles frame. I did this at my house with only the back of my vehicle jacked up, which made it a tight fit as I moved to the front. Last, there was not neat way to secure the wire because I didn't buy the matching T-one trailer hitch (I bought the Curt), so the wiring is more or less just wrapped around the base. All this to be said, I installed another wiring system on my Subaru, which took WAY less time, neatly plugged in once to the back, and tucked in to the spare tire cargo area. This entire wiring system needs to be re-designed. 160433
I installed another tow ready wiring harness in another vehicle 2 1/2 years ago and it is still functioning properly so I decided to use this brand again. The product installs as advertised and as described in etrailers instructions. One thing to be careful of - when you mount the converter box, make sure you place it low enough in the compartment so that it does not block the taillight assembly from going back in place. If you stick it on in the wrong place you may not be able to move it and reuse the same adhesive provided. When you run the black power wire under the vehicle, the brake lines provide a decent route to work along. This is shown in the video but not mentioned. It took me about three hours to do this installation but I used heat shrink tubing on the power connections at the converter box and battery. That takes a little longer than just using electrical tape. I also used about three times as many zip ties as were provided. I was probably more detail oriented than I had to be. Someone mechanically/electrically inclined that only has to look at the instructions once could no doubt do it quicker. I did not rate the product excellent mainly because the 4 pole connector should have enough length of wire to be stored in the jack storage compartment adjacent to the taillight. This is a better location than outside exposed to the elements and where it can potentially drag on the ground or get snagged and ripped off if not properly secured under the bumper or to the hitch. As it is, the 4 pole wire is only long enough to route it down behind the bumper. I tried to put it through the jack storage compartment and it isn't quite long enough. Also, Tow Ready skimped on the number and size of zip ties. Should have been more zip ties and a few large ones for use under the bumper. 207422
Great instructions. Recommend watching the video as it adds more to the "how to" than just the print. If you have a 2017 Patriot Sport, the bumpr wraps farther under than the video shows and you will need to cut away more material to get the hitch in place. If you have the factory tow hook and want to re-use it, find a machine shop to drill the holes out to 5/8". Don't waste your time or money on drill bits. This thing is HARD. My machine shop had to sharpen his bit 3 times just to complete the 2 holes. I went through 4 bits and didn't even begin to drill it out. Also be aware that the clip that the bumper bolt goes into for the hook is only set in place and will want to come out inside the frame. It is a pain in the butt to get back in place. Hitch fit great, was actually alittle "loose" making it easy to fit between the frame rails. However, it came right over when the bolts were tightened. Wiring harness is great item. Really plug and play. Other reviews say not enough zip ties. I had a bunch left over. You can run the wire through the frame for a long strech. Be surte to use the "flat" holes as there are a couple with an upward lip that would rub on the wire. Highly recommend this set up. 481994
Etrailer.com was a very easy site to find the right parts needed to fit your specific vehicle. The parts i ordered even have tutorial videos to a how to step by step of the installation which i thought was pretty awesome. The only issue i have that i don't know if its etrailer.com fault, however, this is why im not giving them 5 stars but when i received my shipment today the box was all damaged and torn apart. I made sure to report the delivery as damaged. I still have yet to see if all my parts came in as i am at the hospital with my newborn son. But i will be sure to notify etrailer.com if anything is missing. Other than that i really enjoyed this site. 479510
This thing was super easy to install and works great! The included instructions are straight forward/ easy to understand. That's a huge plus in my book. The kit does require that you run a wire from the positive terminal of the battery then underneath to the rear of the vehicle. This was not a problem as I found there to be plenty of options for securing said wire. I didn't really like the crimp connectors that were included with the product because they are difficult to work with if you do not have the correct tool to crimp them. Luckily my wire strippers had it. If you only have pliers you are going to have a slightly more difficult time crimping the wire to the box under the vehicle. It took me a little over half an hour to complete the project and it worked the first time! Overall, I am very pleased with the product and will return to etrailer.com should I need another one for any future trailer lighting needs. 186475
Wow, starting with my order on Tuesday I had excellent customer service, then a short 2 days (really?) later I recieved my Rola cargo carrier and light kit. Your videos make it easy to assemble and install. Prices are cheaper than anywhere on the net. Attached are some pics but it is snowing buckets in South Dakota right now, glad when we get to sunny Orlando, thanks etrailer!!! 32298
Install on 2016 Patriot went without a hitch (pun intended) T-kit and flat four connector holder were also purchased and install went well. 670697
Great product and prompt service. 669724
It took about 2 1/2 hours but installed beautifully. It was a tremendous help to have watched the instructional video on Youtube. I used a multimeter for testing. 666980
Set up was amazing. Never owned where its plug and play. Made the job simple and easy. We used it to pull our trailer this last weekend and worked flawlessly. Thank you etrailer and Ashley for helping with the order process. She was quick and answered my questions 664380
lights are still working well, i remember the directions being a little fuzzy on which side is which and i ended up putting them on wrong sides, BUT i cut the end off and wired it into a six round with a four/five flat plug, so all i had to do was reverse when i spliced and it turned out fine! Less satisfied with the mounting bracket provided with my six round four/five flat plug, cheap and easily bent. Also the four flat corroded nice and fast with the salt up here in northern WI (even with the cover) as well as the springs for the cover for the six round. 660437
Running the hot lead back through the chassis on a T&C 2008 took a number of hours. The only complaint was that the butt connectors did not hold and I had to use a replacement for the fuse connection and actually solder the lead to the controller box since the wire coming from it was a different size than the positive wire coming from the battery. Once the wire connections were made, the rest of the connectors worked great. One tip, there is a red retainer clip that has to be removed on the tail light assembly. It requires pressing down the tab while pulling on the clip. 656710
Great price and easy to install 643816
Great product for the price. Highly recommend. All parts fit prefect and video made it an easy installation. Local dealer wanted $638. For parts & install. My total cost was $190 and installed myself & wife in about 1.5 hrs with wiring. 643300
Nice unit and directions were very good. 641160
Great product del on time great service 639748
Everything I've ordered has been on time and performed as it should. Will order again as needed. 638747
The products all fit perfectly. The best part about the whole process is the videos that walk you through the process step by step for your exact vehicle. That took all of the guesswork out of it for me. One year later, and everything still works just right. Thank you. 635979
I ordered a trailer hitch and the wiring harness for a Dodge Durango. So far I have no complaints and the install video from e-trailer was extremely helpful. James at etrailer was very nice and assisted me with ordering the correct wiring harness. 629338
Still working top end. Felt that my concerns were kept in focus by choosing etrailer. 619679
Easy set up. No problems a year later surviving a northeast winter. 619413
Wired up with no problem. I used flexable plastic tubing to shield battery wire along the frame to keep from shorting out. Great product for the money. 613012
It arrived in 2 days, I can't wait to start! Looks like I have everything I need. 611772
Install was about 45minutes. It fits perfectly on my 2009 dodge caravan and is an easy installation with minimal tools. 609957
Worked Great! 606290
Overall a very nice product that does what it says. Just a couple of notes for someone who might have a problem removing the button fasteners on the Jeep Patriot. I found that the buttons do not come out as easily as one would like, here's what to do. Just pry the button out slightly 1/8 in if possible ans squirt some silicon lube behind the button, wait a couple of seconds and now remove the button. Also the a few of the zip ties could have been a lot longer, so I could have gotten them around the factory tow bar running under the tail light area. Had to double up on the zip ties. Still gave the product 5 stars. Corrected my lighting problem while towing my camper. Thank you etrailer and Tekonsha. 604807
Great Product. 596540
Awesome!. Easy to install. Was able to do it on lunch break. 591221
The trailer hitch and electrical kit installed as advertised and has been working flawlessly over the past year. I will definitely buy my next one from etrailer.com. 574884
Had the lighting put in by my mechanic he encapsulated it in a wire harness similar to gutter drain pipe and sealed with ties following brake lines so totally out of way. And protected with grease dialectic so looking forward to many years of service paul 569431
I recently purchased a waverunner and checked into a trailer company to get a hitch and wiring harness for the trailer, they quoted me $450.00 they said I needed a special harness for my Dodge caliber which would be $90. So I got online and found etrailer they were $30 cheaper and I was pleasantly surprised when I got so quickly using the cheapest shipping. It took me about 30 minutes to install it had everything I needed and worked like a charm. I would definitely recommend Etrailer. 563624
It works just fine. 557286
Easily plugged in after watching their online video. After I made a mistake and ordered the erong part, their customer service was absolutely amazing. I didn’t call India or Pakistan and they all spoke English. They could not have been more accommodating. 557217
Great product and hookup easily. So thankful for the video setup they have. This is a great company to buy from! 556355
Nice harness! Easy to install! 554441
Received on Wednesday. Read through directions, looks pretty straight forward. Will install today after putting stuff away from vacation. Thank you. 527786
Product is working as expected. Was easy yo install. Would recommend it 527482
Just finished installing the wiring harness and after a little effort, done! I like the perfect plug into my 2008 T&C brake lamps. I like the perfect length of wiring so nothing to cut. I like having plastic ties come with the wiring just so I don't have to hunt for some in my garage. Instructions good but could be a little better. Doesn't come with a plug mount and really think you need to buy one so you dont have the plug just hanging there in the back. Great package, has everything you need for install, including self tapping screw for the ground. Very happy with it. 527237
Fast shipping, easy to install and works great, highly recommend 522380
Everything was easy and works perfect 522104
This was my first experience with etrailer, and it was great. Incredible fast shipping and handling. I watched the videos they had on the website about how to put the hitch and light wiring kit on my car. The whole project took me an hour and a half! The products are high quality. I cannot find anything about my experience I would change or improve on. Thanks etrailer.com, you will be my first choice from now on... 521028
great hitch and wiring 520382
The product worked great! The installation directions and online support made this project easy. Love working with etrailer. 513404
Still working great!
Beau - 05/28/2019Ask the Experts about this Tekonsha Custom Fit Vehicle Wiring
At etrailer.com we guarantee:
Info for this part was:
At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time.
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.