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  4. Trailer Hitch Wiring
  5. 4 Flat
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T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

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

Item # 118418
Retail:$99.90
Our Price: $60.45
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Custom Fit Vehicle Wiring

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Custom Fit Vehicle Wiring 118418 - 4 Flat - Tekonsha
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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. Circuit-protected converter guards against shorts. 1-800-940-8924 to order Tekonsha custom fit vehicle wiring part number 118418 or order online at etrailer.com. Free expert support on all Tekonsha products. Great prices and Fastest Shipping for T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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Tekonsha Custom Fit Vehicle Wiring - 118418

  • Custom Fit
  • Trailer Hitch Wiring
  • 4 Flat
  • Converter
  • Tekonsha

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. Circuit-protected converter guards against shorts.


Features:

  • 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 points behind tail lights
    • Plug in T-connector
  • Includes circuit-protected tail light converter to ensure that your vehicle's wiring matches that of your trailer
    • Provides protection against electrical shorts and overloads
  • Constructed of 16-gauge bonded wire
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage:
    • Stop/turn lights: 2.1 amps per circuit
    • Tail lights: 4.2 amps per circuit
  • 1-Year limited warranty


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.


T-One Connection Location Points Behind Tail Lights

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.


Circuit-Protected 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.


This converter safeguards itself and your vehicle against possible electrical shorts and overloads with integrated short circuit protection. Just install the connector as indicated and rest assured that the wiring system of your vehicle will remain feedback-free.



118418 Tow Ready T-1 T-Connector - 4 Wire

Installation Details 118418 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:


Customer Reviews

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 118418

Average Customer Rating:  4.9 out of 5 stars   (67 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. Circuit-protected converter guards against shorts.

by:

I talked to Mike about some wiring for a trailer. He was so helpful and had it sent right away. The price was excellent. I received the parts right away. Thanks Mike



by:

What an amazing plug and play wiring harness!! I received my order on time today and hooked it all up in about 30 minutes.
YOU need to buy one of these if you are thinking about putting on a towbar.
It’s just so simple.

Michael G.

8/10/2020

Awesome product. It was so easy to install and mount up to the car. If used it a number of times and never had an issues.



by:

The trailer parts I purchased from you fit well, installed easily, and continue to perform as I had hoped. The transaction went well and I would buy from you again in the future.

Gerald

12/27/2018

George, the products you sold me installed easily and perform as expected with no issues or concerns at all. Thanks for making great products and caring to ask how you did. FYI, YOU DID GREAT!



by:
2004 Saturn Vue

I've had a trailer hitch for about 3 yrs now but nobody had a quick connect wiring harness till I found this one. I didn't follow the directions to an exact "T" because I wanted my 4-flat plug to stay inside the car unless I'm hauling somthing. But I had the whole thing installed in about 20 mins. Best investment I've made. I'm trailering my new motorcycle next week. At least now I won't have to borrow trucks and such. I can go buy my own trailer. Worth the extra $ for quick connect. Solid product



by:
2006 Saturn Vue

I ORDERED A TOW HITCH AND WIRING KIT FOR MY SATURN VUE. IT CAME THREE DAYS LATER, EARLIER THEN PROMISED. NOT ONLY WAS THE PACKAGE COMPLETE, BUT IT FIT ONTO MY VEHICLE LIKE A GLOVE. NOW MY FAMILY AND I CAN HIT THE LAKE THIS SUMMER WITH OUR NEW BOAT!!! VERY HAPPY WITH ETRAILER!!



by:
2015 Saturn Vue

I recently purchased the 118418 T-connector for my Saturn Vue to haul a Scout Trailer. Watched the video once and had this installed in 15 minutes. Super simple to install and use. Since I have a Reese tubular hitch, I had to buy an adapter to mount the plug in an odd place, but the connector itself works and that is all I need it to do.
E-trailer made it extremely simple to install a trailer light hook-up, in fact, I will be ordering another one soon for another vehicle and will have my 13 year old son install it.



by:

Our order included everything that we needed. It arrived ahead of schedule and included clear written instructions. The online videos were extremely helpful as well. I highly recommend etrailer.com to anyone looking to install a trailer hitch. It makes it easy even for people with no automotive experience. Great job!!!



by:

The product was as expected and well assembled. The directions were aided greatly by the Your Tube video and installation time was much less than expected. Because of the video I expected the mounting plate for the 4 pin connection this, however, was simply my mistake and I can order that bracket separately. Over all I am very pleased withthe product and ease of installation. Well done!



by:

Videos did not show all detail for installation. Have to remove some additional panels to install wire harness correctly. I also had to swap some parts from one light assembly to the other just to get it to fit correctly. Didn't take too long to figure out, so wasn't to concerned. Wire harness was proper length and everything worked upon install.



by:
2005 Saturn Vue

really easy to install! the video e trailer has for this was a huge help. great product, looks like it will hold up well.

Oc

9/28/2018

Thanks for checking in. The trailer hitch was great and held up fantastic. Only got to use it about 4 times, but it worked perfectly. The wiring harness matched perfectly and was a breeze to install. The SUV i mounted it on didnt have enough towing capacity for my new boat, so I ended up trading it in for a newer one that had a factory hitch pre-wired setup. So the hitch receiver and wiring stayed with the SUV upon trade in. I held on to the ball mounts and the other bars and have used them a bunch for towing and launching and they are working great. Really love the site and am shopping around for some other accessories like a roof rack and maybe some off road recovery gear as well.



by:
Saturn Vue

The video made it easy. Popped a few of the wheel well "buttons" out and fed the wiring through the taillight assemblies. You can tuck the wiring up in the fascia or tie to the hitch frame, either way you really won't see it. We just hooked up the ground to the the quarter panel retaining bolt since it was right there anyway. No need to drill a hole in your vehicle. Tested the lights once it was all set up, no problems on either the Vue or the trailer.



by:
2006 Saturn Vue

Everything came in quick and correct. My threaded bolt holes in the frame of my vehicle were a little rusty, so I had a little trouble cleaning the rust out to receive the bolts that came with the hitch. I was not surprised though because the video I watched showed me how to clean out the bolt holes. Also two of the bolts would not go all the way in. Went to local hardware and bought two shorter bolts and fixed problem. Overall pretty simple. Would highly recommend.



by:
2005 Chevrolet Colorado

Hitch and wiring harness fit perfectly on our 2005 Saturn Vue. Will use to pull fishing boat to Texas from Colorado. No issues that aren't common to any after market products. Checked order by phone, those folks were helpful. Like the product and the price.



by:
2006 Saturn Vue

I am very happy with the T-One wiring harness, and was amazed at the ease of connecting it to my vehicle. instructions and video made it a breeze. Thank you so much!!



by:

The wiring harness turned out great, but when I read the installation instructions, I did not have the required tools to install it myself and had a local service shop install it (cost only $35). His installation was perfect.



by:
2004 Saturn Vue

Other than taking quite a bit of time chasing the threads in the frame rails, install with off with a problem.
Really liked the wiring harness. Easy plug in again no problem.



by:

It was a fairly easy to install and works great.



by:

Great Service. I had an issue with the wiring harness. emailed customer service and they got back to me right away. replacement part was shipped and was up and running two days later.

Thanks



by:
2002 Saturn Vue

Hitch arrived quickly, fit perfectly, install was very simple. Wiring harness was little more involved (due to removal of plastic panels)but directions were well written.



by:

Really excited to use this plug and play system for my trailer lights. Old school cut strip and tape is eliminated. Just need to figure out where to rout and hide the wires.



by:

A high quality product. However, the installation wasn't as fast and easy as the video and other reviews indicated. It took two of us over two hours to do the job. A hoist is advised-we used a roller jack. Once installed, the harness worked perfectly.



by:
2006 Saturn Vue

Helps wiring with out having to splice wires... Would have been a 5 star but one side was short and barley made it to the center of the back of my car, and the other side had what seemed like miles of extra length. Also the colors didn't match up with existing colors in the car. I was glade I tested to verify left & right before I ran the wires. But it was slick, just un-clip, add in middle, and re-clip. no splicing involved.



by:
2006 Saturn Vue

Kit is exactly like the picture and vids, easy as pie to install. Like everyone has stated, the wire to fish through is too short, needs to be longer but I guess they need to save costs lol. If you expand and flatten the wire completely straight, its just long to reach through.



by:
2003 Saturn Vue

Great product and service! Ordered wiring harness on Saturday, had it by Tuesday.Instructions were spot on and easy to follow. Didn't have to cut and splice any wires, everything plugged right up, wires were the perfect length, took less than an hour. I wish all my "projects" were this easy.Thanks!



by:

I found this through YouTube, excellent! From now on, I don't go to the store, I go to etrailer.com. The item came in three days, perfect for my weekend project.


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Show More Reviews

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

  • Will Tekonsha Universal Wiring Harness Fit a 2006 Saturn Vue
    The Upgraded Circuit Protected Tail Light Converter Hardwire Kit # 119178KIT is technically a universal kit so it will indeed fit your 2006 Saturn Vue. With that being said, the T-One # 118418 is actually a plug and play style that tees in behind your tail lights and would be much easier to install so I recommend going with this instead. I have attached an installation video of this kit as well for you to compare to the universal kit. If you don't already have a trailer hitch then I...
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  • Hitch and Trailer Wiring Harness for 2006 Saturn Vue
    The Curt # 13344 Class III hitch is a fit for 2000's era GM minivans, and wouldn't fit your Vue. This being said, we do indeed have hitch and trailer wiring harness fits for your 2006 Saturn Vue. For a hitch, I'd recommend the Curt # 13591. If you click the provided link, you can see an install video showing this hitch being installed on a 2006 Vue like yours. For a trailer wiring harness, use # 118418. See the linked video for installation details. You'll also need a ball mount and a...
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  • Will the T-one Vehicle Harness Part #118418 Fit the 2003 Saturn Vue Redline
    No, I am sorry you will have to hardwire your 2003 Saturn Vue Redline to have trailer lighting available at the rear of the vehicle. If you need a 4-way flat connector you could use the Upgraded Circuit Protected Modulite with 4 Pole Harness and Hardwire Kit, part # 118418, which will include all wiring and connectors to complete the wiring along with instructions. You will have to remove the vehicle taillights and splice into the vehicles wiring using a circuit tester, part # PTW2993...
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  • What Hitch Wiring Do I Need For A 2006 Saab 9-3 2.0T
    For your 2006 Saab 9-3 the DaLan part number 247326 you referenced is the correct part number and is the same as part number 11326 from Curt manufacturing on our site. The wiring does not come with the hitch. Your vehicle will need to be hardwired to provide an electrical trailer connector. I would recommend the # 119179KIT to wire your vehicle so that you have all of the wiring, hardware and inline fuse needed to complete the installation. You will have to use a circuit tester to identify...
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  • recommended Parts Needed to Tow with a 2006 Saturn Vue
    The parts you need to tow with your Saturn Vue include a trailer hitch, wiring, and a ball mount kit. If the year of your Saturn Vue is a 2006 like what you were looking at then I recommend the following: etrailer Class III Trailer Hitch - # e98865 T-One Wiring Harness - # 118418 Ball Mount Kit - # EBMK4 If you have a different year model just let me know what that is and I can make some different recommendations if I need to.
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  • Trailer Wiring Harness Recommendation for a 2005 Saturn Vue
    The recommended trailer wiring harnesses for your 2005 Saturn Vue are ones with converter boxes like the part # 118418. That being said our installer was able to find a way to wire in the part # 18002 to a 2004 Vue similar to yours. This isn't the ideal solution, but it would work if you used the install video as a guide. I attached install videos for both harnesses for you to check out.
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  • Parts Needed to Tow a Trailer with a 2006 Saturn Vue
    First, be sure to consult your vehicle owners manual for specific information on towing with your vehicle. There are a few components needed to tow a trailer staring with the trailer hitch. First, there are Class II and Class III hitches available for your 2006 Saturn Vue. I recommend a Class III trailer hitch, # 13591, because it has a higher capacity and the 2 inch receiver is compatible with more accessories. Basically, with a Class III hitch you have more options. Next you will need...
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  • Recommended Trailer Hitch for 2006 Saturn Vue
    The difference is that the 2006 Saturn Vue Red Line models require noticeable rear fascia trimming when installing a trailer hitch. The Red Line models also have a lower suspension. For either model I recommend a Class III trailer hitch like the Curt hitch, # 13591, because it has a higher capacity and the 2 inch receiver is compatible with more accessories. I have included a video of this hitch being installed on a similar vehicle. To complete your towing package I recommend Ball Mount...
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  • Short Circuit on Trailer Caused Trailer Wiring Harness on 2008 Saturn Vue to Blow
    What probably happened was that the converter box has blown. This means that it has done its job. The short on the trailer blew the box instead of damaging the vehicle wiring. There is no fix for this and the wiring harness on the vehicle will have to be replaced. You will need to make sure that the short circuit has been fixed prior to installing and using the new harness. Otherwise the same problem will keep happening until the short is fixed. I have included a couple of wiring FAQs...
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  • Trailer Hitch and Wiring for a 2007 Saturn Vue
    Actually, if you were to try to install Curt hitch # C19101 it would require a lot more work than the custom fit hitches for your 2007 Saturn Vue. You would have to access the metal bumper beam which would require removal of the rear fascia. Then once you get that removed it is possible, even likely, that the hitch will not fit. Installation of a custom hitch such as # 13591 is much easier as you can see in the video I have linked showing an example installation. I have also included a...
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  • If there is a Short Circuit Will Curt Converter Box Blow or Just the Affected Circuit
    Normally when there is a short circuit it will blow the converter box no matter what the brand is. But sometimes it will only affect the one function that shorted like what you have experienced. It could go either way but regardless of what does happen you would need to replace the converter to fix the issue. We do have the plug in style T-connector # 118418 that you can use instead of a hardwire harness if you hare interested. I have linked instructions and a video for you to view. You...
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  • Trailer Hitch and Wiring Recommendations for a 2007 Saturn Vue
    We make videos based on what vehicles customers bring to us for installations. The 2007 Saturn Vue was built on the same platform (the GM Theta platform) as the Chevy Captiva Sport and Equinox, The Pontiac Torrent, and GMC Terrain, among others. Only the bodies where different so the videos shown for those other vehicles can still be used as good guides when installing a hitch on the Vue. As for the comments/reviews that is just coincidence. The etrailer hitch # e98865 does fit your Vue....
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  • Hitch Recommendation for a 2007 Saturn VUE Hybrid
    Yes, I checked with Curt and the Curt Hitch part # 13591 that you referenced has been confirmed to fit all styles of the 2007 Saturn Vue so it will fit the hybrid models like what you have. I attached an install video for you to check out as well. If you plan on doing some towing you might be interested in etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and one with a 2-3/4 inch rise or 4 inch drop. It also includes a 1-7/8 inch ball,...
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  • Do Torque Specs for Installation of a Trailer Hitch on a 2003 Saturn Vue have to be Followed
    On a 2993 Saturn Vue you should be fishwiring in 1/2 inch bolts and blocks through the frame and to the bolt holes on top of the hitch as indicate in step 5. The bolts that get fishwired in are 1/2 inch carriage bolts. It is important to get the bolts to the proper torque spec. If they are too tight you can damage the hitch and vehicle. If they are not tight enough you could loose the hitch. Most auto parts stores will loan out tools. You will need a torque wrench that goes up to at least...
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  • Parts Needed For Towing a Trailer With a 2006 Saturn Vue
    Yes, we have the T-One Vehicle Wiring Harness # 118418 which will connect in line on your 2006 Saturn Vue's tail light wiring. This will give you a 4-way flat connector for towing most small trailers which do not require electric brakes. If you have a trailer with brakes you will need our Kit # ETBC7 and a Brake Controller # RED52VR. I prefer this Redarc controller as the main portion of the controller is hidden behind the dash and you can make adjustments via the small control knob. I...
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  • Trailer Hitch, Wiring, and Ball Mount for 2005/2008 Saturn Vue
    For a Curt Class III 2 inch hitch that fits your 2005 Saturn Vue you'd need the part # 13591, but if instead you meant to type 2008 you'd need the part # 13594 like you referenced. The wiring for a 2008 would be part # C56026 or for a 2005 # 118418. Since you wanted to do some towing you might be interested in etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and one with a 2-3/4 inch rise or 4 inch drop. It also includes a 1-7/8...
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  • Troubleshooting # 118418 T-One Vehicle Harness Installed on Saturn Vue
    Whenever trailer lights exhibit strange behavior, its typically a result of a poor ground connection. It sounds like you have done a wonderful job of troubleshooting up to this point. The only thing it appears you have not checked is the grounding point on the vehicle side of the equation, where you have the ground wire for the converter attached. Another quick method of troubleshooting is trying the trailer on a different vehicle or the vehicle with a different trailer (if possible)....
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  • Trailer Hitch, Wiring and Brake Controller Recommendation for 2005 Saturn Vue
    If the goal is to tow a trailer with your 2005 Saturn Vue I have a better setup for you to consider. For a trailer hitch the etrailer part # e98865 has great capacities and since it's a 2-inch hitch it will give you the best options for future accessories and ball mounts. For trailer wiring the Tekonsha brand is the most reliable so for your vehicle the best option would be the # 118418. From there you would need to convert the 4-way to a 7-way so that you can install the brake controller....
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    Image 1 for
  • Adding a 7-Way Trailer Connector to a 2006 Saturn Vue
    In order to add a 7-Way trailer connector your Saturn Vue you will first have to install a 4-Way using # 118418. Then to add a 7-Way you have 2 options. If all you want is for the lights to work on the trailer when you tow it with the Vue then you would need # 37185. You would ground the white wire and the other wires can be capped off and stowed out of the way. If you want all the functions of the 7-Way to work you would install the 4-Way but use # ETBC7 to add the 7-Way. If the trailer...
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  • Curt 2 Trailer Hitch - Bumper Mount - 8-3/4 Bolt Pattern - 5,000 lbs GTW
    I do have a solution for you, however the Curt 2 Inch Trailer Hitch - Bumper Mount # E-3S referenced in your question is designed to fit certain truck rear bumpers and will not work on your 2006 Saturn Vue. For your 2006 Saturn Vue, I instead recommend the Curt Trailer Hitch Receiver # 15391. This Class III hitch is confirmed to fit this vehicle and will use existing holes in the vehicle's frame for a no-drill installation. This will provide you with a 2 inch receiver opening and it has...
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  • 4-Way Trailer Wiring Harness Recommendation for a 2006 Saturn Vue
    Since your 2006 Saturn Vue has separate turn signal circuits from the brake lights you would not be able to hardwire a 4-way directly to the taillights like with the part # 18004 that you referenced. Instead you would need a harness that has a converter built into it so that the circuits are adapted to what a 4-way requires. For that we have the part # 118418 which is a confirmed fit and would work well. This plugs in line with your vehicle taillight harnesses and does not require any...
    view full answer...
  • Trailer Wiring Harness for a 2004 Saturn Vue
    The 2004 Saturn Vue used in the video, linked for reference, for wiring harness # 18002 has a factory tow package wire bundle. The factory tow package wire bundle already has the turn signal and brake light signals combined to wire in a 4-Way directly. No converter is needed. Otherwise you would use wiring harness # 118418 which does have a converter to combine the separate signals.
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  • Will Curt Trailer Hitch 13591 Fit All Models of the 2005 Saturn Vue
    The Curt trailer hitch # 13591 does fit a regular 2005 Saturn Vue. And it fits the Red Line like you said. So it will work for your 2005 Vue. Curt, Draw-Tite, and Hidden Hitch all make good hitches so the preference is yours. I have linked a video showing installation of the Curt hitch for you. To complete your towing set up I recommend etrailer ball mount kit # 989900. It includes 2 ball mounts, 2 balls, a hitch pin with clip, and a storage bag. And for trailer wiring you can use Tow...
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  • 4-Way to 5-Way Adapter Recommendation for a 2005 Saturn Vue for Trailer with Reverse Lockout
    I am glad to hear that the Tow Ready Wiring Harness part # 118418 is working great in your 2005 Saturn Vue. All you would need to convert the 4-way of this harness to a 5-way to activate the reverse lockout of your trailer is a part # 20036. You will need to tap into the reverse light circuit of your Vue using the included quick-splice. I attached an installation video for the # 20036 for you to check out also.
    view full answer...


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Info for this part was:

Employee Joe V
Test Fit:
Joe V
Employee Nicholas E
Test Fit:
Nicholas E
Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee John H
Expert Research:
John H
Employee Joshua S
Video Edited:
Joshua S
Employee Laura H
Updated by:
Laura H
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Updated by:
Alexander C
Employee Isabelle B
Updated by:
Isabelle B
Employee Cole B
Installed by:
Cole B
Employee Sue W
Video by:
Sue W

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