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  1. Custom Fit Vehicle Wiring
  2. Tekonsha
  3. 4 Flat
  4. No Tow Package
  5. Trailer Hitch Wiring
  6. Vehicle End Connector
THIS ITEM IS NOT A FIT FOR
2022 Ram 2500
Tekonsha

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

Part Number: 118487
In Stock
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$62.12
Retail:$93.35
You Save: 33%
Custom Fit Vehicle Wiring
Not Confirmed to Fit

2022 Ram 2500

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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. Powered ModuLite reduces strain on wiring system. 1-800-940-8924 to order Tekonsha custom fit vehicle wiring part number 118487 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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  • Reviews (39)
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Tekonsha Custom Fit Vehicle Wiring - 118487

  • 4 Flat
  • No Tow Package
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • Tekonsha
  • Plug and Lead
  • Powered Converter
  • Hidden

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 in trunk
    • Plug in T-connector
    • Run hot lead to car battery
  • Includes ModuLite power module that connects directly to 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 lights: 2.1 amps per circuit
    • Tail lights: 5.6 amps per circuit
  • 1-Year limited warranty


Installation

This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located inside your trunk, behind the tail lights on both the driver's side and passenger's side. You will need to remove some interior trim or carpeting to access the 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 within your trunk.


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 Power Module

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.



118487 Tow Ready T-1 T-Connector - 4 Wire - Modu-Lite

Installation Details 118487 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.8

39 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:
2012 Ford Mustang

Everything arrived as stated, no problems, very happy.



by:
2018 Ford Mustang

Two local trailer dealers advised me that there was no wiring kit for my 2018 Mustang. I bought the kit from etrailer and it works fine. I was nervous about doing it myself because the dealer would not install it. I watched the videos and it was a very easy installation. Everything worked like in the video. I did make one change, I ran the power wire under the back seat to the passenger compartment. I then attached it to a 12 volt plug and hid the wires and plug under the passenger seat. When I use the trailer I plug it into the receptacle in the console. I was easier than running it under the car into the engine compartment.



by:

I've owned this for a year and it works great! Easy to set up too.



by:
2011 Ford Mustang

Fast shipping and everything was there that was needed, just a couple of plugs run a hot wire, worked perfect Thanks for a great product. Cherry



by:

the wiring harness is nice quality , easy to put on. The video on etrailer.com was very helpful for both the trailer hitch and wiring harness.



by:
2016 Ford Mustang

I've been using this to haul my Kendon motorcycle trailer behind my 2016 Mustang GT convertible for about a year now and it's been working great. Haven't had any issues yet. Kit had enough wire and parts are holding up so far.



by:
2014 Ford Mustang

The Sportframe hitch was quick to bolt up with the excellent fish wires. It actually took longer to install the wiring harness!



by:
2013 Ford Mustang

I got the trailer hitch earlier than expected, all the parts were there , the photos to aid in the installation were very helpful and the price was very reasonable. Also the hitch when not in use is very low profile and not easily seen. Thanks E-Trailers!



by:

Only took a couple hrs to install, but my car was an exception. I have a 12 Boss 302 and it has corsa sports that had to be tack welded to keep from turning in the clamps at high rpm. So I managed to remove the hangers to drop the mufflers a bit and got it done. Not an easy chore but it's possible. Looks great on the car since it tucks up close to the rear bumper. Fish wires weren't to hard at all and went well getting them through.



by:
2017 Ford Mustang

Hitch came in very fast. Ordered two days before X-mas and it arrived on the 28th. Hitch and wiring are both as advertised. Giving four stars instead of five because it tore through the box and scraped some pain off a few places. Will update when installed



by:
2010 Ford Mustang

The wiring harness was simple to install running the wire to the battery was the worst part of all. Excellent instructions



by:
2016 Ford Mustang

Really good quality. Excellent communication from seller.



by:
2015 Ford Mustang

Fits 2015 Mustang GT convertible perfectly.
Very
happy with the hitch and shipping.
I’ll buy from you again when needed.



by:

I had no problem installing the hitch but have not used it for any hauling yet.



by:
2019 Ford Mustang

the longest task was running the wire from the battery by the engine to the unit in the trunk, all other connections were plug in and test how it worked. it worked very well- thanks!!



by:
2012 Ford Mustang

Quick delivery. Easy installation



by:

Cables were easy to install and included all the necessary hardware.



by:
2009 Ford Mustang

I have used your product before
It was
easy installation and was DYI easy project.
I would give it 5 stars out of 5



by:
2016 Ford Mustang

Its Etrailer of course they get 5 stars.



by:

Thank you for wonderful service and speedy delivery

John K. profile picture

John K.

5/30/2018

Never got to install vehicle before I sold it. So I still have unable to use. It will not fit new car. But price and service were great



by:

Great and timely transaction! I’d recommend e-trailer to anyone!



by:

Excellent Product! Watch the video and you should be more than fine. The kit comes with everything you need. It took me a little over 2 hours to complete the install but I guess that's what happens when you don't do these things for a living. Used it on my maiden voyage a 400 mile trip with no issues.



by:
2013 Ford Mustang

Product was easy to install and working well, no problems.



by:

Plugged in as advertised and is still working as expected.



by:

Exactly what I needed, with fast delive ry!


25
39
Show More Reviews

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

  • Trailer Hitch, Wiring and Ball Mount for 2017 Ford Mustang
    There is a potential way for you to haul an electric wheelchair with a 2017 Ford Mustang, although there is not an adapter that is going to work. The reason for that is there is just one 1-1/4 inch to 2 inch adapter with rise that works with a Class I hitch, and that adapter, the Brophy # HT5R, has a 5 inch rise, which doesn't meet your needs. Additionally, the use of any adapter will reduce the weight capacity of your hitch by 50 percent, and since there are only Class I hitches with a...
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  • Recommended Cargo Carrier For 2015 Ford Mustang With 1-1/4 Inch Trailer Hitch
    To be able to use the Curt Cargo Carrier, part # C18151 on your 2015 Mustang you will need an adapter because the only trailer hitches available for your vehicle is a Class l trailer hitch with a 1-1/4 inch receiver opening. You would need an adapter like part # HTAD to be able to carry the 2-inch cargo carrier. Keep in mind that using any adapter in the hitch reduces the weight capacity of the hitch by 50 percent. The # C18151 basket weight is about 55-lbs. So this would not leave...
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  • 2013 Ford Mustang Hitch Options
    If you have a 2013 Ford Mustang GT or Non GT convertible, you can use either the Draw-Tite # 24863 or the Curt # C11210. These will both give you the same capacity, but one I recommend more than the other. I recommend getting the Curt as it has a hidden cross tube. I don't like seeing the crosstube of hitch receivers on cars and especially on sports cars like yours. I highly recommend getting the Curt for that reason. For wiring, you can use the T-One Vehicle Wiring Harness with 4-Pole...
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  • Trailer Hitch and Wiring for a 2015 Ford Mustang GT Convertible
    Technically, the Curt trailer hitch # C11405 will fit a 2015 Ford Mustang GT Convertible but it is only listed for Coupe models so I would not recommend it. Like you said, the Draw-Tite hitch # 24928 fits convertible and regular models and it is the hitch I would use. I have linked a video showing installation for you. If you want to do some towing the correct ball mount is # 3594 and for a 1-7/8 inch ball use # 19256 and for a 2 inch ball use # 19258. And to add a 4-Way trailer connector...
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  • Can 2014 Ford Mustang be Used to Tow Motorcycle Trailer
    According to the online owner's manual for your 2014 Ford Mustang you can tow up to 1,000 lbs. So if you can find a trailer that weighs under 1,000 lbs with your motorcycle loaded you will be just fine. I recommend installing the Curt Trailer Hitch # C11210 on your Mustang because it has a collar around the receiver which can be used for more stability in certain applications. For wiring I recommend the T-One # 118487 because of how reliable we have found the Tekonsha wiring to be. Then...
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  • Trailer Hitch Fit for 2018 Ford Mustang GT Convertible With Active Exhaust
    According to Draw-Tite, their # 24928 Class I hitch will fit a 2018 Mustang GT convertible with the active exhaust. If you'll be towing with the hitch, you'll also need a trailer wiring harness, part # 118487, a # 3594 ball mount and for a trailer ball, use # 19256 for a 1-7/8 inch or # 19258 for a 2 inch ball.
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  • Recommended Hitch and Wiring for a 2017 Mustang Convertible
    The Draw-Tite # 24928 is designed for your 2017 Ford Mustang Convertible. This is a 1 1/4 inch Class I hitch, so it is limited to a maximum of 2,000 pounds towing and 200 pounds of tongue weight. Unfortunately, there is not a larger 2 inch option available for the Mustang line. You can add a hitch expander, like the Brophy # HTAD, to get up to the 2 inch opening, but these do cut your tongue weight in half, so are not highly recommended. That being said, there are some great bike racks...
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  • Hitch and Related Towing Items for 2015 Ford Mustang GT with Aftermarket Exhaust
    Auto makers like Ford cannot test their vehicles with all the possible combinations of aftermarket parts available, such as trailer hitches and specialized exhausts. Installation of one of the light-duty Class I hitches offered for the 2015 Ford Mustang Fastback, such as Draw-Tite # 24928, will require that your boyfriend review the linked instructions for this hitch and determine if the exhaust system he's installed will interfere with installation. He'll also want to check his owner's...
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  • Trailer Hitch Receiver Fit for 2012 Ford Mustang Boss 302
    We do have a trailer hitch receiver I can confirm is a fit for your 2012 Ford Mustang Boss 302, which is from Curt: - Curt Trailer Hitch Receiver # C11210 I confirmed with Curt that this is a fit for your '12 Mustang Boss 302. Since this is a Class I hitch, if you are planning on using it for an accessory like a bike rack, you'll need a Class I-compatible rack such as the Swagman Chinook # S64683. Or, if you plan on doing some light towing with the Curt Trailer Hitch # C11210 and your...
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  • What is the Difference Between the Hidden Hitch and Draw-Tite Trailer Hitch for a 2011 Mustang GT
    The only difference between the Draw-Tite Sportframe Class I Trailer Hitch, # 24863, and the Hidden Hitch Class I Trailer Hitch, # 60280 (no longer available), is that the Hidden Hitch Trailer Hitch includes a ball mount. Draw-Tite and Hidden Hitch are sister companies that use the same design, specifications and materials for their products. The only advantage to purchasing one over the other is that you will get a ball mount with the Hidden Hitch trailer hitch. In this case you will...
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  • Taillight Signal Converter Recommendation for Adapting a US Vehicle to a Euro Trailer Wiring
    The note you mentioned for the # 118158 is for when it is used for flat towing. Since your plan is to use this adapter to make an adapter for towing a trailer you can disregard that. The # 118158 would be the correct adapter to use to convert your trailer taillight signals from combined to separate and would work with the # 118487. I attached a diagram that should be helpful for you as well.
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  • Availability of a Trailer Hitch and Wiring for a 2011 Ford Mustang GT
    I spoke with my contact at Draw-Tite and he stated that trailer hitch # 24863, will fit the 2011 Mustang GT. I have included a link to the installation details. If you plan on doing some towing the hitch does not come with the proper ball mount. You will need part # 3594. For a 1-7/8 inch ball use # 19256 and for a 2 inch use # 19258. For trailer wiring use # 118487.
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  • Tips for Routing Trailer Wiring Harness Power Wire on a 2014 Ford Mustang Convertible
    There is no one specific way the power wire from a trailer wiring harness such as # C56088 or # 118487 has to be run on your 2014 Ford Mustang. It all depends on how you want to route the wire. I have included a link to a help article with tips on routing the power wire for you. You could follow one of those methods or use it as a guide to develop your own.
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  • Using Hitch Adapter on Class I Hitch for Motorcycle Carrier on 2012 Ford Mustang
    You are correct that the only available trailer hitches for your 2012 Ford Mustang are Class I hitches that provide a 1-1/4 inch receiver opening. If you do not yet have a trailer hitch, I recommend the Draw-Tite Class I Sport Frame Receiver Hitch # 24863. This is custom fit for your vehicle and will use existing holes in the Mustang's frame for a no-drill installation. I have attached the written installation instructions that you can also take a look at. You can use an adapter like...
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  • Can a 2010 Ford Mustang Tow a Trailer
    I looked up the owners manual for a 2010 Ford Mustang and it states it is rated to two up to 1,000 lbs. There are no air shocks available though you should not need them; when we installed the Curt hitch on a 2010 Ford Mustang it was more than 11 inches from the ground to the top of the receiver which isn't super high but is definitely okay to tow with. We do have the hitch, wiring and rest of the set up you need in order to tow if you'd like. Here are the parts you'd need for your 2010...
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  • Ford Mustang 2010 Convertible Tow Ready T-One Connector
    The Tow Ready T-1 Connector # 118487 requires a connection to the battery in order to function properly. The T-1 receives the signals from its attachment behind the tail lights, but the voltage to power the trailer lighting is sourced directly from the battery. This is done to protect the circuitry in the vehicle wiring system. Drawing the power from a different 12-volt source can damage the electrical system in the event of a short circuit in the trailer wiring. I have ran the power wire...
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  • Trailer Hitch and Trailer Wiring Recommendation for a 2011 Ford Mustang V6 Convertible
    For your 2011 Ford Mustang Convertible, you can use Curt Trailer Hitch, # C11048. This trailer hitch comes with the required ball mount and you can use ball # 19256 (1-7/8 inch diameter) or # 19258 (2 inch diameter). If you plan on ever using the hitch for a non-trailer load like with a bike rack or cargo carrier, Curts warranty requirements state that for their class I and II hitches, you must use a stabilizing strap like # 18050. For trailer wiring, you will need to use the Tow Ready...
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  • Availability of Class II Trailer Hitch for 2011 Ford Mustang
    All of the trailer hitches available for your 2011 Ford Mustang are Class I rated hitches. There is not a Class II hitch available that will fit your Mustang. Trailer hitches are custom-fit for specific vehicles, meaning that most will use existing holes in the vehicle's frame for installation. This means that you would not be able to install a Class II hitch, which would be designed for a different vehicle, on your 2011 Ford Mustang. Since hitches are designed for certain vehicles, they...
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  • Recommendation for Carrying Two Motorcycles with a 2010 Ford Mustang
    In order to carry the 2 motorcycles with a 2010 Ford Mustang, the best option would be to use a trailer. The Yakima Rack and Roll Trailer, # Y08106, is a roof rack on wheels and would not work for your application. First, if you do not already have a trailer hitch for the Mustang, I recommend the Curt Hitch, # C11048. It will fit all models, including the GT, but not a GT/CS, Shelby GT, or GT500. This hitch comes with the recommended ball mount which should be used in the rise position...
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  • Recommended Trailer Hitch For 2015 Ford Mustang GT Premium Convertible
    We have just what you are looking for. The trailer hitch I recommend for your Mustang is the Draw-Tite Sportframe Trailer Hitch, part # 24928. This is a Class l hitch and it has a 1-1/4 inch receiver opening. I called my contact at Draw-Tite and asked about the GT Premium Convertible model to see if there were any issues with a trailer hitch. They told me that the # 24928 is listed as a fit for all models. I have attached a link to an installation video for this hitch on a 2015 Mustang....
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  • Trailer Hitch and Wiring Recommendation for 2012 Ford Mustang V6
    The Draw Tite hitch part # 24863 is a confirmed fit for your 2012 Ford Mustang V6 and has a 2,000 lb towing capacity. As long as the owners manual of your vehicle states that you could tow a trailer that weight you'd be good. For trailer wiring I'd recommend the Tekonsha kit part # 118487 as it installs without splicing into the vehicle wiring and has the most reliable converter box of all of the kits we offer. For a ball mount you'd then want the part # 3594 and for hitch balls # 19258...
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  • Weight of Curt Trailer Hitch Receiver and Other Parts to Tow with a 2017 Ford Mustang
    The Curt trailer hitch receiver, part # C11405, has a shipping weight of 45 pounds. That includes the hitch, hardware, and shipping materials. The shipping materials don't amount to much so the hitch and hardware weigh just a bit under the 45 pounds. The Draw-Tite hitch that also fits your 2017 Ford Mustang, part # 24928, is 43 pounds for shipping so it's just a little less than the Curt. You need to add trailer wiring too. I recommend part # 118487 which is a fit for your Mustang. Class...
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  • Trailer Wiring Recommendation for a 2023 Ford Mustang
    Thanks for reaching out, Matt! Yes, the recommended wiring harness for your 2023 Ford Mustang is the T-One # 118487. I'm attaching an installation video of this that we did on a 2016 Mustang you can use as a reference.
    view full answer...
  • Will Installation of Trailer Wiring Harness Affect Sequential Turn Signals on a 2016 Ford Mustang
    The sequential turn signal feature on your 2016 Ford Mustang is controlled further up the line than where a trailer wiring harness such as # 118487 would install. The connection for the wiring harness is basically a pass-through device so the sequential signals coming through won't change how the vehicle turn signals function.
    view full answer...


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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 by:
Joshua S
Employee Michael B
Video by:
Michael B
Employee Nicholas E
Test Fit:
Nicholas E
Employee Shane H
Test Fit:
Shane H
Employee Jacob T
Video Edited:
Jacob T
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

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