bing tracking image
  1. Custom Fit Vehicle Wiring
  2. Tekonsha
  3. Trailer Hitch Wiring
  4. 4 Flat
  5. Custom Fit
  6. Powered Converter
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

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

Item # 118571
Retail:$118.10
Our Price: $65.25
You Save: 45%
Custom Fit Vehicle Wiring

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

Add to cart
In Stock
Tekonsha Trailer Hitch Wiring - 118571
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

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.

Product Images

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
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. 1-800-940-8924 to order Tekonsha custom fit vehicle wiring part number 118571 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.
  • All Info
  • Reviews (40)
  • Q & A (0)
  • Photos

Tekonsha Custom Fit Vehicle Wiring - 118571

  • Trailer Hitch Wiring
  • 4 Flat
  • Custom Fit
  • Powered 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. Powered ModuLite reduces strain on wiring system.


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
    • Locate connection points behind tail lights
    • Plug in T-connector
    • Run hot lead to car battery
  • Includes ModuLite to ensure that your vehicle's wiring matches that of your trailer
    • Powered module connects directly to the battery to avoid overloading vehicle's electrical system
  • Constructed of 16-gauge bonded wire
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage:
    • Stop/turn light: 4.2 amps per circuit
    • Tail lights: 7.5 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.


Tail Light T Connector Diagram

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 in an out-of-the-way location within your cargo area. 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.


ModuLite Powered Tail Light Converter

A ModuLite power module 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. This power module functions as a tail light converter to combine 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.


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.



118571 Tow Ready T-One Vehicle Wiring Harness

Installation Details 118571 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 - 118571

Average Customer Rating:  4.5 out of 5 stars   (40 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.

by:

My trailer hitch arrive within 3 days. It was easy to install. Customer service personnel were courteous and helpful.

Thomas J.

4/25/2014

Trailer Hitch is doing well. I have not had any problems. I pull a 5x8 trailer.



by:
2017 Hyundai Santa Fe

Trailer Hitch was no problem went in without a hitch. Punny.
The wiring harness is another story. Need a little bit more wire for the connectors to mount easily, had to pull slightly to get connected to the light assembly.
Tested the lights ( running, right and left turn signal) all worked , but the brake lights never come on when depressing the brake pedal. All of this was tested with the tester.
in the Curt harness the completion is the Tech testing the lights. In the one you substituted (Tec....) kit there is no test performed. Has anyone checked to see if the harness is compatable to the tester or vice versa. I have disconnect the lights cover connecters twice now and everything is the same ,no brake lights.
on the curt kit install the running lights are a single light indication. like the turn signal. the brake indication is all lights lite , and the turn signal glow stronger and blink.
My indication is no running lights on turn signal work OK. running lites on all led's lite. Press brake pedal and no change in lights on tester. turn signal work the same as above. I am completely lost ? Is it the wire harness, the tester, there is a reason that the curt Tech tested in the video but, the one in the other brand did not!!!! ?
also is the end of the trailer hitch supposed to extend out from my bumper by 3.X inches . if so it doesn't . it is back under the bumper by about that much. See beginning of Curt hitch installation , where Tech is discussing the hitch. Maybe the 2017 Hyundai Santa Fe Sport changed in 2017 and you need to check your products. Not pleased with the installation or wire harness.

Etrailer Expert

Heather A.

12/8/2017

Joseph, Thank you for your review on 118571. When testing a 4 way with the circuit tester curt I26 your brake light is combined with the left and right turn signals because it is a combined wiring system. As long as these two signals light up your brake light should be working. If all the LEDS are lighting up then you may need to make sure your 4 way is properly grounded. The white wire needs to be grounded on a clean bare metal surface. I have attached a link for troubleshooting a 4 and 5-way wiring setup. Also, the curt hitch for the Santa Fe extends 5-1/2 inches from center of hitch pin hole to the outer most edge of your bumper. I have attached a link for troubleshooting a 4 and 5-way wiring setup.



by:
Hyundai Santa Fe

I didn't know if my Santa Fe Sport had a trailer package (it was an Enterprise rental that I purchased). During installation of the wire package I found two capped wire connections. A hint on the order may have clued me what to look for. I suspect that if I would have called you you would have been able to advise me. So, IF there was an error I didn't do my part to help!



by:
2015 Hyundai Santa Fe

With the help of a mechanic, a lift and all the right tools the hitch went on easily. The wiring harness was a little challenging as connections had to be made directly to each tail light. It required finding existing holes to run the wiring harness which required pulling the back panels loose and removing the storage area compartments. This is where the mechanic came in handy as he knew what to pull to pop things loose. I am very pleased with the communication with the eTrailer staff in making sure I had the correct parts needed to install my hitch.



by:
2015 Hyundai Santa Fe

The wire connecting the two rear taillight connectors is not long enough. Needs to be at least another 12 inches. It was very difficult to get the taillights back into their assemblies due to the huge plastic pieces that due to the small amount of wire, I could not get into the proper place.



by:
2018 Hyundai Santa Fe

Instructions for installation were crap. Inside rear panels had to come off to install the wiring into the rear of the tail light. Instructions made no mention of inside panel removal. 2018 Santa Fe. Instructions were from outer space no good. Plug and play wiring worked fine once installed



by:
2013 Hyundai Santa Fe

Installed Curt C13134 Class III hitch & C56151 wiring harness on
2013 Santa Fe Sport. Super easy install! Very happy with product & service.



by:
2013 Hyundai Santa Fe

I bought the Curt custom hitch receiver Class III and T-one wiring harness for my 2013 Hyundai Santa Fe. Great customer service, they had my order delivered in 2-3 days. Easy instillation and looks great.
Thanks etrailer!



by:
2013 Hyundai Santa Fe

The hitch and wiring harness arrived quickly and in excellent condition.
The hitch installed easily and quickly. The wiring harness took longer to install on my new Santa Fe Sport than expected but was not difficult. The online videos were a great help as the instructions that came in the package are hard to follow. Excellent service and a great product. Great pricing also.



by:

I would probably give a four star I ended up not using it cause I found the out i actually had trailer package and brought a different one from you guy so I don't know how well it would of turn out but I didn't like the complicate installation. But overall you guy do sell good and great product that are usually hard to find in mine town, I do plan to keep buying mine outdoor equipment from you guy since you guy usually have sale all the time which that is great deal and make me want to keep coming back.
Keep up the good work!



by:
2013 Hyundai Santa Fe

Instructions were great, but the cables give you 0 slack! The driver side wireing in particular had zero slack and was very difficult to install, in fact it was so tight that the white ground cable broke and had to get extended. If there were several more inches of wireing, the installation whould have gone a lot more smoothly. Fortunatley i know how to do simple wireing and was able to finish the install.

I have a 2013 Hyundai Santa Fe Sport



by:

I haven't installed my trailer hitch yet, but the service from Seth was excellent.
I received my order in only two days, and it is right before Christmas.
I ordered a curt trailer hitch and wiring harness. Very quick service.



by:

I ordered the wrong wiring harness! Found out after pulling driver side rear panel and seeing it’s pre-wired from factory. Got to exchange for correct wiring harness! My bad!



by:

Everything went together as stated . The videos are terrific. I would recommend to anyone needing a trailer hookup..... Very easy



by:
2013 Hyundai Santa Fe

I have 2 issues with this wiring harness:
1)
the ground cable was 6" too short, Therefore, I had to splice a 6" lead to the ground cable.
2) the cable leading from the left taillight to the right taillight needs to be 2" longer to allow for for a more relaxed run.



by:
2014 Hyundai Santa Fe

Worked fine. I had originally installed another brand that kept blowing the fuse and shorting out other lights. This one has worked well for about a year.



by:

Not real happy, the proiduct did not fit properly. The wiring over to the passenger tail light was about a foot too short. We had to splice in our own wiring to make it reach tail light.



by:
2013 Hyundai Santa Fe

Wiring from taillights a little short, had to lengthen them. Connectors all fit like factory.



by:

Great product. excellent customer service. Very good videos to help install. I strongly recommend etrailer.com



by:

Straight forward installation



by:
2017 Hyundai Santa Fe

Purchases were delivered on time without damage. Pricing was no contest. etrailer's pricing was Significantly lower than all competitors. I will order from etrailer again.
Customer service was super!



by:
2013 Hyundai Santa Fe

ANother product that is very easy to install.....setup was a snap!



by:

Instillation as advertised. Best with two people. Have towed a few times with no problems.



by:

It works!



by:

Works great. Had to zip tie the end to the hitch, nowhere else to hang it.


25
40
Show More Reviews

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

  • Parts Needed to Install Brake Controller in 2014 Hyundai Santa Fe
    You will need to start with a 4-way (if you do not have one) on your 2014 Hyundai Santa Fe Limited Sport. For that you would want the # 118571. From there you would need to convert the 4-way to a 7-way so that you can install the brake controller. For that you will want the Brake Controller Install Kit and 7-Way Adapter part # ETBC7. I attached installation instructions and an install video for this product as well. For a brake controller I would recommend the Brake EVN # TK63VR. This...
    view full answer...
  • 2 inch Hitch and Trailer Wiring That Fits 2017 Hyundai Santa Fe Sport
    For your 2017 Hyundai Santa Fe the etrailer hitch part # e98841 is the correct 2 inch hitch fit and then for a 4-way the kit you would want is the part # 118571.
    view full answer...
  • Recommended Trailer Hitch Receiver For 2016 Hyundai Santa Fe Sport
    The trailer hitch receiver from your 2007 Ford Taurus Sedan will not fit a 2016 Hyundai Santa Fe Sport. For your Santa Fe Sport, I recommend the Draw-Tite Max-Frame Trailer Hitch Receiver - Custom Fit - Class III - 2" # 75772. This hitch will give you more options than the 1-1/4 inch hitch receiver on your Taurus, but most 1-1/4 inch accessories can easily work with a larger hitch without losing functionality using a reducer (adapter) like # HT02. If you will be towing with this hitch,...
    view full answer...
  • Recommended Trailer Hitch and Towing Accessories for 2014 Hyundai Santa Fe Sport
    There are Class II and Class III hitches available for your Santa Fe Sport. Because the Class III uses the more common 2 inch receiver opening, which would give you many more flexibility in choosing hitch mounted accessories such as cargo carriers or bike racks. I'd recommend the Draw-Tite Class III hitch, part # 75772 as it is the most reasonably priced. All the available hitches would be just as visible from the rear, so none would have an advantage there. Although this hitch is the...
    view full answer...
  • Recommended Trailer Hitch and Wiring for 2018 Hyundai Santa Fe Sport 2.4L
    For your 2018 Hyundai Santa Fe Sport, the Curt Trailer Hitch Receiver - Custom Fit - Class III # C13152 is a confirmed fit. It has a round tube design and black powder coat finish over a protective base coat to keep it looking nice for an extremely long time. For your trailer wiring, I recommend the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118571. This custom-fit T-One connector plugs into your Hyundai Santa Fe Sport wiring harness, which is located behind the...
    view full answer...
  • Trailer Hitch Recommendation for 2017 Hyundai Santa Fe Sport
    If the plan is to do any towing and there is a 2 inch hitch available that's the way to go. So for your 2017 Hyundai Santa Fe Sport the Curt hitch part # C13152 would be a great option and the best recommendation we can make. For trailer wiring you'd then want the part # 118571. 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....
    view full answer...
  • Wire Gauge For Installing Curt # C74VV Venturer Brake Controller on 2013 Santa Fe
    When we do a hardwire brake controller installation here at our facility, we always use 10 gauge wire to carry the brake output circuit from the brake controller to the trailer connector. A 12 gauge wire is smaller in diameter which would increase the resistance and could make the wire overheat. I spoke with my contacts in the Tech Services departments at Curt and Tekonsha, both of which recommend using 10 gauge wire, and would discourage using anything smaller. We offer a brake controller...
    view full answer...
  • Trailer Wiring Harness Options for a 2013 Hyundai Santa Fe
    On a 2013 Hyundai Santa Fe that came with the factory tow package the connectors for a wiring harness get power via the vehicle electrical system powered through the fuse box. But models that did not come with the factory tow package might have the factory connectors at the back but they may not be active. If your Santa Fe came with the factory tow package then you can use # C56332. For a Sport model without factory tow package use # 118571 and for a GLS or Limited model without factory...
    view full answer...
  • Trailer Wiring Recommendation for 2017 Hyundai Santa Fe Sport
    For a 4-way trailer wiring harness that is a confirmed fit for your 2017 Hyundai Santa Fe Sport the T-One kit part # 118571 is a confirmed fit and would work well.
    view full answer...
  • Installing T-One Harness # 118501 on 2013 Hyundai Tucson
    The instructions included with the # 118501 wiring harness for your 2013 Tucson are a bit on the vague side. The procedure is different from the Santa Fe harness you mentioned. The first step in the install involves removing the tail light assemblies (as if you were changing a burned out taillight bulb). Disconnect the manufacturers wiring harness from the rear of the assemblies. You will then need to remove the spare tire cover (cargo area floor) and threshold. Then, locate and remove...
    view full answer...
    Image 1 for
  • Trailer Hitch Fit and Trailer Wiring Harness for 2017 Hyundai Santa Fe Sport
    The Sport and the longer wheelbase 'regular' 2017 Santa Fe models do indeed use different hitches. The exhaust is positioned a bit differently at the rear of the Sport model, which necessitates a different hitch design for both vehicles. The Sport model can indeed use the Curt # C13152 hitch you'd looked at. On a scale of 1-10, we rate the difficulty of the installation at a 3, which will make for a pretty easy install. If you'll be using the hitch for towing, you'll also need a trailer...
    view full answer...
  • Recommended Parts for Towing a Trailer with a 2017 Hyundai Santa Fe
    Any local shop will be able to easily install a trailer hitch receiver on your 2017 Hyundai Santa Fe without a problem. We do not have a list of shops that we recommend so you will either want to go to one that you do business with or call around and check prices for an install. In all honesty none of the hitch receiver options for your Santa Fe are very hard to install so if you are fairly confident in working on vehicles it will be fairly easy. I do recommend installing a hitch that...
    view full answer...
  • Comparing 2" Trailer Hitch Receivers For 2017 Hyundai Santa Fe Sport 2.0 Turbo
    For your 2017 Hyundai Santa Fe 2.0 Turbo Ultimate Sport there are three 2" trailer hitch receivers available, the Curt # C13152, etrailer # e98841, and the Draw-Tite # 75772. Out of these three options I recommend the etrailer # e98841 as it is tied with the Curt # C13152 for the highest ratings at 900lbs tongue weight and 6000lbs trailer weight rating, but it has a matte black powder coat finish which best matches the plastic trim on the bottom of your rear bumper. The Curt # C13152...
    view full answer...
  • Trailer WIring Harness for a 2014 Hyundai Santa Fe
    Yes, we do have trailer wiring options for your 2014 Hyundai Santa Fe. If you have a GLS, Limited, or Sport model with the factory tow package use wiring harness # HM11143965. For a Sport without factory tow package use # 118571. For a GLS or Limited without factory tow package use # C56184.
    view full answer...
  • Confirming Trailer Hitch Receiver and Wiring Fit On a 2013 Hyundai Santa Fe
    The etrailer Trailer Hitch Receiver # e98841 will only fit the Sport trim level of your 2013 Hyundai Santa Fe. This trim will have a decal on the rear hatch door as well as only seat 5 passengers. The Curt Trailer Hitch Receiver # C13153 will fit the larger 6 & 7 passenger Santa Fe GLS and Limited trims levels. I cannot lookup your vehicle information based on a VIN number but you can contact your local Hyundai dealer who will be able to help you identify your Santa Fe if you are still...
    view full answer...
  • Hitch, Wiring and Related Towing Components for 2017 Hyundai Santa Fe
    We can help get you set for towing in your 2017 Hyundai Santa Fe. Towing typically requires, at minimum, a hitch, wiring harness, ball mount and hitch ball. Trailers with electric brakes will also require a trailer brake controller in the tow vehicle and larger trailers may make use of towing mirrors a good idea. The linked articles on towing will be helpful. Hitch fits depend on your Santa Fe version. If you have the Sport then use USA-made Curt hitch # C13152 for its higher weight rating....
    view full answer...
  • Trailer Wiring for a 2013 Hyundai Santa Fe with Factory Tow Package
    If your 2013 Hyundai Santa Fe has the factory tow package then all you will need is a harness that plugs into the vehicle trailer wiring ports, # C56332. The factory connection points are under the vehicle along the frame rail in the back. I have included a link to the installation instructions for you.
    view full answer...
  • Parts Needed to Install Trailer Brake Controller on a 2013 Hyundai Santa Fe Turbo AWD w/Tow Package
    You will start by installing the trailer wiring harness # 118571 (fits Sport models) that you have referenced. I have linked the instructions for you. To add a brake controller you will need to use 4 and 7-Way installation kit # ETBC7. This will provide the 7-Way and the wiring needed to install the P2, # 90885. I have included some links to instructions and a video that will help you with this installation.
    view full answer...
  • Where Does Trailer Wiring Harness # 118571 Install on a 2013 Hyundai Santa Fe
    Provided that your 2013 Hyundai Santa Fe is a Sport model then you can use harness # 118571. This harness plugs in line with the vehicle tail light wiring so the connection points are located behind each tail light. I have included a link to the installation instructions for you to view.
    view full answer...
  • What is the Fuse Rating and Power Wire Gauge Used for Trailer Wiring Harness # 118571
    The Tow Ready wiring harness # 118571 is rated for 7.5 amps for brake lights and turn signals and 7.5 amps total for running lights. The fuse that goes on the power wire connection to the battery is a 10 amp fuse. The wire gauge of the long 12 volt power wire included with the kit is 12 gauge. I have included a link to the installation instructions and a link to a video showing a typical installation for you.
    view full answer...
  • Fit of Draw-Tite Class III Receiver on 2013 Hyundai Santa Fe Sport 2.0L Turbo Model
    The folks at Draw-Tite tell me that their Class III Trailer Hitch, part # 75772 is compatible with your 2013 Hyundai Santa Fe Sport with the 2.0L Turbo engine. If you'll be using the hitch for towing purposes, you might need the following accessories: -Trailer wiring harness w/ 4-pole trailer connector, part # 118571 or # C56332 for vehicle with the tow package. -Ball mount, part # D-4 Hitch Pin and Clip, # PC3 -1-7/8 inch trailer ball, part # 19260 -2 inch trailer ball, part # 63845 I've...
    view full answer...
  • Draw Tite Trailer Hitch for 2016 Hyundai Santa Fe Sport
    For your 2016 Hyundai Santa Fe you will need to upgrade your trailer hitch to the part # 75776 as the 75772 is not a confirmed fit for the 2016 models. I attached an install video for you to check out as well. For trailer wiring you would want the part # 118571 which is a confirmed fit. If 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...
    view full answer...
  • Fit of Curt Class III Receiver # C13153 on 2013 Hyundai Santa Fe
    The Curt Class III receiver, part # C13153 is compatible with all non-sport models of the 2013 Hyundai Santa Fe, per the installation instructions. I have confirmed this by speaking with my Curt representative, as well. In addition to the hitch, you might need the following items to complete your towing system: Trailer wiring harness, part # C56332 if your Santa Fe has the tow package, part # 118571 if it does not Ball mount, part # C45010 1-7/8 inch trailer ball, part # 19260 2 inch trailer...
    view full answer...
  • Recommended Tow Hitch and Trailer Wiring for a 2018 Hyundai Santa Fe Sport Without Tow Package
    For your 2018 Hyundai Santa Fe Sport, I recommend using the Curt Trailer Hitch Receiver part # C13152 because it has the highest weight capacity and is the most durable option we have for you due to the superior powder coating process. It is also made in the USA. This trailer hitch is a direct bolt-on fit for your Santa Fe Sport. I have attached an install photo for you as well. For a tallier wiring harness, I recommend the T-One Vehicle Wiring Harness part # 118571 because we have found...
    view full answer...
    Image 1 for


< Previous



Do you have a question about this Custom Fit Vehicle Wiring?


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Nicholas E
Test Fit:
Nicholas E
Employee David F
Test Fit:
David F
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 Chris R
Video by:
Chris R
Employee Andy C
Installed by:
Andy C

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. Let us know if anything is missing or if you have any questions.