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ConverterItem # 118496
Retail:$67.18
Our Price: $37.95
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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 - no cutting, splicing or tapping required. Includes tail light converter.
Features:
Specs:
Installation
This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located on the driver's side and passenger's side, either behind the tail lights or along the frame rail. If your wiring harness is behind the tail lights, you will have to remove the tail light assemblies to gain access.
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.
Tail Light Converter
A tail light converter is built into this T-One connector. Because most trailers run on a two-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your vehicle's three-wire system need to be combined so they are compatible with the wiring system of your trailer. The tail light converter combines the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights. Note: This will not affect how the tail lights on your vehicle operate.
Installation Details 
1993 - 1998 Toyota T100 Pickup
1993 - 1998 Toyota T100 Pickup
2014 - 2015 Toyota Tacoma
2005 - 2007 Toyota Tacoma
2005 - 2013 Toyota Tacoma excluding X-Runner
2008 - 2015 Toyota Tacoma without factory 7-Way
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'll be reviewing part number 118496. This is the T-One Vehicle Wiring Harness from Tow Ready. This is going to provide a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights. To see if this is going to fit your particular year, make and model, you can refer to the vehicle list at the bottom of the product page. This is going to be compatible with 5-pole, 6-pole and 7-pole adapters that are sold separately. The 4-way flat connector also has a nice dust cap that slips over the connection points. Just to keep them protected from the elements.
It is attached so you dont have to worry about losing that. A great advantage of this system is that it connects quickly and easily so no cutting or splicing of wires required. All you got to do is locate the connection point either behind the tail lights or along frame rail and plug in T-connectors. It's going to include the tail light converter that's going to ensure that your vehicle's wiring matches that of your trailers. The unit's constructed of 16-gauge bonded wire. It's going to comes with the dust cap for the 4-way flat like I said earlier.
Again, that is attached. When it comes to maximum amperage, the stop and turn lights are going to be 2.1 amps per circuit. Your tail lights are going to be 7.5 amps per circuit. Just to go over a few other things that you're going to get. You're going to get the complete harness, its got the ground wire attached with the ring terminal. You're going to get a larger zip tie, two smaller zip ties, a self tapping screw and a knot. The knot and the self tapping screw are design to secure the ring terminal for the ground connection depending on your application.
You're going to have to either drill into a nice clean metal surface or you can use the knot and attach it to a pre-existing ground connections. Again, you got the knot and the self tapping screw. You're going to use one or the other depending on your application. For the install, this is a custom-fit T-One connectors going to plug into your vehicle's wiring harness. It is going to be located on the driver's side and passenger's side, either behind the tail lights or along the frame rail. If your wiring harness is behind the tail lights, you will have to remove the tail light assemblies to gain access. Once you have everything connected and the installation is complete.
The 4-way flat connector can be stored beneath the vehicles rear, down by the hitch. We do recommend a mounting bracket that's going to be sold separately. That's just going to keep the connector secure and up out of the way. It's also recommended that you use a small amount of grease on all electrical connections like the plugs on your vehicle and the 4-pole connector itself. That's going to help prevent corrosion. Then the tail light converter, because most trailers run on a two-wire system, the separate brake and turn signals from your vehicles through our systems need to be combined so they are compatible with the wiring system of your trailer. The tail light converter combines the brake and turn signal functions of your vehicle so that they run on one wire to properly activate your trailer's lights. Keep in mind that this will not affect how the tail lights on your vehicle operate. I think that's going to do it for our review of part number 118496. This is the T-One Vehicle Wiring Harness from Tow Ready. .
Average Customer Rating: 4.9 out of 5 stars (435 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 - no cutting, splicing or tapping required. Includes tail light converter.by: Charlie10/17/2018
I am new to trailering, this was recommended by your staff to go well with my hitch also purchased from your company. My auto mechanic installed it no problems, and trying it seems to work well with the lights and wiring on my new trailer. Thanks! 575078
by: calvin09/29/2017
Easy to install but wire to trailer is shorter than the one replaced. Had to wire things a little different to compemsate for shorter wire, but other than that, will work for my boat trailer. 437651
still working so am pleased
Calvin K - 09/30/2018by: John P09/18/2018
Easy to install and works just fine. The package does not include the protective flex sheith, like what the vehicle has, so you'll want to get about 6 feet of it. If it came with that included, I would have given 5 stars. I would recommend this to anyone. Don't waist your money on uhaul like I did. I had to fix what they messed up, then install this kit. 566529
by: Pablo09/28/2018
This wiring harness was at my door soon after I ordered it and couldn't have been easier to install. It fit perfectly! I am very pleased. 569819
by: Charles10/01/2018
It was what we needed and, once properly installed, it worked just as it should. 570573
by: John09/08/2018
Concise pictured instructions made installation very straight forward. I took my time and it was around an hour and 15 minutes. A lot of time was rounding up the tools as we are getting ready to move. A few more zip ties would be nice. There were no issues with the installation when I tested the plug with a trouble light. 563019
by: Thomas09/29/2018
Excellent product and good instructions and very easy to install. 570214
by: Duane09/30/2018
Nice and easy install needed more zip t ies! 570311
by: Scott10/02/2018
Easy to install, great product. 571071
by: majusa09/02/2017
Once again, the installation videos make installation a snap. I followed the lead of a previous reviewer who mentioned using wire loom to contain the wires so they don't hang loose. This makes the final result look more professional. So glad I found etrailer online. 428003
No problems with the wiring harness after a year. I installed a 7 pin connector at around the same time. All works fine. Dielectric grease on the contacts keeps everything working good as new.
majusa - 09/02/2018by: Jorge09/17/2018
Super easy to install less then 30 minu tes. 566128
by: Craig08/19/2018
I have a 2008 Toyota Tacoma. My original factory installed trailer connection crapped out. I ordered this kit and surprised at how easy it was to install. The video is much better then the paper instructions but I did refer to them to make sure I had the right cables going were. Probably took me all of 20 minutes to install. 555289
by: Tim09/08/2018
Great product. Easy to install works pe rfectly 562815
by: James09/02/2018
Item installed easily and has worked well with my boat trailer. 560969
by: Bertram D.05/23/2016
Easy install even though we worked on the ground. We did not remove the bumper just supported it. We removed the two top bolts that hold the hitch and installed the hitch with the four bolts, loosened the other three and installed the shims separately. Once all the bolts were started we tightened everything down. Great product and also easy install on the wiring harness. Took us around 90 minutes for everything. Thanks great products...Bert D. 251217
by: Charles C.08/16/2012
I ordered the items on Monday, and received them on that Wednesday afternoon. I had the trailer hitch and the wiring harness installed in about 2 hours. The hitch installation requires two persons, but goes easily. The wiring was as easy, but I made it more difficult by using loom to protect the wires. Probably took 30 minutes longer that way. 51938
by: FShams02/06/2018
I had been looking for a solution to securely add a 4 way flat connection and be able to plug in my Rear LED light bar to. The product was accurate and very easy to install in less than 15 minutes. All plug-n-play. Very happy with the final result. Thank you 473295
by: David H.03/22/2017
My harness was exactly what I was told it was. All I had to do was plug it in and was done in less than ten minutes. Took longer to get the bolts out of my lights. My old wiring harness had quit working and I went to the Toyota place but the wanted 100 bucks for a harness and I would have to take the fuse box out of the dash in order to put it in. With etrailer the saved me hours worth of work and more than half the cost. Will definitely recommend this to anyone who needs one. 357268
by: April Hunting12/06/2012
Haven't had the opportunity to use the product, but I will say customer service will bring me back. I had a person that was available by name through the whole process. I hate having a generic email and number so you get a different person each time and have to explain the issue each time. Even though I haven't used the part yet, I know if I do have an issue who to go to. Thank you for such personal customer service. 60803
by: Gary H06/23/2012
Nice quality, easy installation, took the time to add corregated sleeving insulation to protect the wiring (plan to keep the truck a long time). Adding the sleeving took a little longer but the installation looks like it came from the factory. I would recommend this product this system to others. The only thing I would have liked to add would be an optional mounting bracket for the trailer connection to bumper. 45387
by: Warren09/02/2018
easy to install, works great 560915
by: Buck C.01/02/2017
Everything you guys promised I received and the shipping was incredibly fast. I did have a little problem with the location of the hardware for the hitch. I just wasn't thinking to look in the hitch itself and was looking in the box for a bag or a smaller box, but I found it quickly enough. Everything else was just as it should be. Bolt holes lined up. The wire harness worked like a dream. Thanks so much for the awesome installation videos. They really gave me the confidence to make this purchase knowing that I would be able to install this myself and save a lot of money by doing it. 331395
by: Rodríguez12/24/2014
Install was as easy as 1, 2, 3. Used more tie wraps then we're sent but other than that... Perfect. 166793
by: Carl S02/09/2015
I have a 2015 Tacoma and installed this in about 30 minutes, requires the simple removal of the tail lights and plugs snap in line, no cutting or splicing. Hint: once the tail light bolts are taken out the tail light pop out by pulling straight back on them. 172990
Really? Wow, its still great and recommend to anyone that asks.
Carl S - 02/17/2016by: Richard Littlejohn01/09/2012
In review of the T-One Connector with Upgraded Circuit Protected Converter, I can't say enough good about etrailer's excellent products and services. There was a complete ease in the ordering process; item shipped fast and exactly as described and pictured. The item was great quality and easy to install. The follow-up from etrailer from the order process, withshipping details, and even after receipt of the item was exceptional customer service. Etrailer.com is the place to come for any all wiring and adapter needs! 29348
by: Gregory08/08/2018
Easy, professional way to add a 4 flat plug to your Toyota. If you don’t want to “splice” into existing factory wiring then this is no doubt the way to go! 551362
by: Lcrain01/08/2016
Had a hard time finding the right wiring harness kit to hook up trailer lights on my new Tacoma. Found your web site, you had exactly what I needed, so I placed my order. It was shipped to me in just a couple of days, and I am ready to rock and roll. There was even an instructional video showing how to connect everything on my specific truck. I highly recommend these folks! 235048
by: Chuck09/12/2013
Have never used the T1 connection type cables (in last 4 installations) but THIS is the way to go. As always, videos and written instructions were great, but hardly needed....almost idiot-proof! 99675
They were great when I got them, great when I installed them and they have worked as advertised read great!Thanks for asking.
Chuck - 09/15/2014by: Rex A.08/01/2017
I gave you a 5 star even though UPS tried to mess up your excellant delivery time. they sent it to the wrong PO so instead of getting it 3/17 it came on 3/20. it attached easily per instruction and video. the only improvement I made was to encase all the wiring in flexible conduit. when finished everything tested perfect. thank you very much. 413384
by: Logan Somervell01/23/2013
Installed on a 1997 Toyota T-100. It took about 30 minutes. Everything was easy to install. It took a few minutes to get the truck plugs pulled apart (probably hadn't been pulled apart before). The plugs on this harness plugged right in with an audible click. I used the included cable ties as well as a few of my own to secure the wiring under the truck. Now all my trailer lights work, and I don't have to worry about any more splicing. I wasn't sure the passenger side wiring was long enough to reach across the truck, but it made the distance with a little room to spare. I decided on this product after spending most of a Saturday splicing and checking connections. I was trying to find out why I didn't have right signal or brake on my trailer. Truck's lights worked fine, but the trailer's lights didn't. I even checked the trailer while connected to a friend's truck, so I knew the problem was on the truck's end. I put all of the original truck wiring back in place, checked all the lights on the truck, installed this product, hooked up the trailer, checked the trailer lights, and now everything works. Thanks e-trailer. 63899
by: Edwin T.10/18/2013
I ordered this item to replace one I got 5 years ago that started to work erratically (most probably after several years of launching my boat in saltwater without disconnecting the plug!). It is a very easy installation and "like-factory" fit. I did notice that the main circuit box is smaller than the one I'm replacing so for me is a plus since it will be easier to hide behind the light fixture. 104256
by: Jerry H.08/05/2014
The installation videos made hook up easy. Everything fit and the wiring harness seems to work as advertised. 144503
Works just fine. Have had no issues with it. Thanks
Jerry H - 08/07/2015by: Jeff08/24/2018
Easy installation! 557579
by: K.L.01/06/2014
2014 Tocoma..The wiring install, went slower the the hitch install. the main reason was the taping of the wires to the truck wiring and getting up and down. (time was 50 minutes) Install the driver side first, only the plug is placed with the tail light, install the passenger next, only the plug is placed with the tail light. Tape the new wiring to the stock wiring, start with the tail lights and work down you will find you have just the right length of wire. I taped the 2x2 black connector to the wiring harness. If the wires were 6 inch's longer on both sides, I would have used the two sided tape and stuck the connector on the frame 111973
I have used the the trailer connection on 5 different days for about 1 hour each time, two weeks ago I had to used the trailer to help move a friend of ours and it was raining so the lights was on all the time. the trip was 12 hours,there and 7 days of short trips and on the way home about six hours in to the return trip i stopped for fuel and when I started the truck I lost the tail lights and the brake lights,blown fuses. I stopped at a auto parts store and picked up some new fuses,when i turned on the lights the new tail light fuses popped and when I stepped on the brakes, the new brake lamps fuses popped. We stopped for the night, I will not drive a truck and a trailer at night without lights.The next day, and a hundred lighter, I got home, I disconnected the trailer and replaced the fuses. The fuses stilled popped. I opened the tail lights and disconnected the left tail light trailer connection and the fuse sill popped, and i disconnected the right tail light trailer connection and the fuses held. I will pull out the bad harness and replace it with a factory tow harness more money and more time to install but I no more problems and I will order a trailer brake to plug in to the stock wiring.
K.L. - 02/09/2015by: Ryan R.01/13/2012
The wiring system was pretty straight forward. The video pretty much said all I needed to know. I'd rather use this set-up than any guy at a hitch shop doing a quick splice to the wiring in my truck, any day. The only thing I did differently from the video was put my wiring in the black conduit that you can buy pretty cheap at any auto parts place. This change will keep the wires from chaffing and makes the whole job look more professional. 29655
by: David08/22/2018
Easy to install. 556815
by: Scott W.06/07/2017
I had received multiple quotes to install a hitch on my 2014 Toyota Tacoma. All were around $400. So I did a little research and found the etrailer.com site. I found I could buy the hitch, the wiring harness and ball myself for less. The installation video they provided me gave me the confidence I could do the install myself. Now it's on and the entire process couldn't have been easier. If you can use a socket wrench and screw driver you can install your own hitch. Piece of cake! 391017
by: Bruce N.04/16/2014
good fit on the connectors on the rear of the taillights, I followed the instructions starting on the driver side. routed the wires down and to the hitch following the existing wires... bad plan! seems like 44$ was not enough to provide 12" more of wire because the passenger side wires were short! after zip tying at 10 locations along the stock wire path (you would think Toyota would use the best route?) I had to cut the ties and route the wire in the bed sheet metal channel to make them long enough. WOW I would have gladly paid $2 more to have some extra wire to chose my route better. product did perform as advertised. give me some more wire and earn a better rating. 125681
by: Chris02/15/2013
I ordered this on Tue. and It was delivered on Fri. Installed in 30 min. and I took my time. Great product and etrailer had great communications. Toyota wanted $100 for the factory wire harness and over $100 to install. I intalled this myself and it was less that $50. 66484
1.5 years later no issues at all.
Chris - 08/16/2014by: Scott Hart04/25/2013
Installed on a 2011 Tacoma (pre-runner model)Doesn't get any better than plug and play! way less effort and problems over time to use a plug and play harness over the conventional crimp or strip and wire together solutions. Saves time and labor. My only complaint is the web site and the instructions need to be updated because this kit shows fitting up to a 2010 Tacoma. I assumed the factory harnesses were the same from Toyota but it creates doubt when your kit shows up to 2010 everywhere and it's now 2013. My guess and the search link at etrailer were correct and it will also fit newer Tacoma's even though nothing beyond that search request showed newer than 2010. About 30 minutes including figuring out how the clips on the Tacoma tail lights work to remove them safely and checking them after the install.Only tool required is a 10mm socket and perhaps an extra zip tie or two if you choose. I didn't bother using the wire covering that some purchased seperately and used. It's a small piece of wiring for trailer lights not the main fuse panel so I didn't overkill the install but you can if you prefer. Customer service, communication, shipping from etrailer was first rate and no complaints. 77843
by: Gerry E. B.12/25/2010
Trailer Hitch Wiring Harness 2010 Tacoma I found this harness easy to install on my 2010 Toyota Tacoma. The directions were easy to follow with pictures to reference. It took me about an hour and a half to install complete with zip ties to make sure all was neat and tidy with the wiring. The hardest part was getting the taillight assembly out of the truck. Once the bolts are out, you have to use some force to pull the assembly back off the guide pins. I would recommend this harness to anyone looking to put in a hitch or in my case a LED light bar for stop, running and turn signal lights. The folks at etrailer were super fast in getting the harness to me. I would do business with them again would recommend them to my friends. Thanks for a great product and fast service! Gerry B. 4608
by: iain10/29/2012
This electrical harness is brilliant, good videos showed me how to install in minuets. Nice work etrailer.com! 58329
Im still liking the products I reviewed very much. I never usually bother to give feed back on stuff I buy online but it was so refreshing to have such a great product and for it to be so well supported buy your team I really wanted to express gratitude.
iain - 05/16/2014by: Jimmy Trahan07/16/2017
Just put my harness in and it was very easy very good quality material and it fixed my problem hily recommend etrailer 406716
Working great after a year still recommend etrailer
Jimmy T - 07/16/2018 by: Ralph08/03/2018
No problems at all 549750
by: dien2no06/08/2017
Amazing experience with etrailer! The selection process was a delight, the order process was painless, and the product readiness for the installation process was absolutely more than expected! there is no doubt that I will consider etrailer as my first stop when shopping for products they sell. 391762
My use is rare, except for the hitch now use with my bike rack and I find everything excellent - wouldnt hesitate to buy from etrailer in the future and I havent unsubscribed :
dien2no - 06/09/2018 by: Mark06/25/2018
Delivered on time, easy install and works like charm! 526740
by: K Vance06/09/2017
Bought this wiring harness for my 08 tacoma so that I could hook up a boat trailer and I couldn't be happier. Installation was easy and straightforward- took about 15 minutes total. 391067
Havent had any issues at all. I use the wiring hookup 2-4 times a week to haul either a boat or a utility trailer and have had no issues! Definitely worth the money.
K V - 06/11/2018 by: Andrew06/14/2018
Easy install not very experienced wiring but this made it super easy has held up. Will buy from etrailer again. 521638
by: Vincent06/04/2018
Great product but not so great instructions. After watching you tube video, it took me about an hour to nstall. Easy Peasy 517163
by: Joe06/05/2018
Very easy installation. Will recommend to friends. Great product 517529
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