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  1. Custom Fit Vehicle Wiring
  2. Tekonsha
  3. Custom Fit
  4. Trailer Hitch Wiring
  5. 4 Flat
  6. No Converter
T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Item # 118259
Retail:$30.40
Our Price: $20.83
You Save: 31%
Custom Fit Vehicle Wiring

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Custom Fit Vehicle Wiring 118259 - Custom Fit - 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 OEM tow package port - no cutting, splicing or tapping required. 1-800-940-8924 to order Tekonsha custom fit vehicle wiring part number 118259 or order online at etrailer.com. Free expert support on all Tekonsha products. Great prices and Fastest Shipping for T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (204)
  • Q & A (0)
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Tekonsha Custom Fit Vehicle Wiring - 118259

  • Custom Fit
  • Trailer Hitch Wiring
  • 4 Flat
  • No 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 OEM tow package port - no cutting, splicing or tapping required.


Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Designed for use with a factory tow package
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing of wires
    • Locate connection point behind rear bumper
    • Plug in connector
  • Constructed of 16-gauge bonded wire
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage: 7.5 amps per circuit
  • 1-Year limited warranty


Installation

This custom-fit T-One connector plugs into your vehicle's factory tow package wiring harness, which is located just behind the rear bumper.


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 plug on your automobile and the 4-pole connector itself - to help prevent corrosion.



118259 Tow Ready T-1 T-Connector - OE Replacement 4-Flat

Installation Details 118259 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:


Customer Reviews

T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector - 118259

Average Customer Rating:  4.9 out of 5 stars   (204 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 OEM tow package port - no cutting, splicing or tapping required.

by:

Exactly as expected. Quality hitch. Fast shipping. A+ seller!



by:

I received the package and within an hour and 15 minutes I install the hitch laying on the ground with no jacks or hoist. I also cut out the back of plastic panel and install it and looks real professional . I was quoted over $400 for the same package. In my opinion the E trailer is definitely the best way to go. Thanks Gary

Gary R.

8/20/2017

Still working great after a year. Its been from the heat of zflorida to the salt in Michigan. Great product, great price. Thank you



by:

Plug and play! This trailer power cable plugged directly into my factory Cadillac SRX wire harness. No wire cutting and splicing, absolutely the easiest installation I could imagine. Highly recommended for anyone who can use it. See photos showing the purchased product and where it plugged into the factory wiring harness.



by:
2015 Cadillac SRX

I was very pleased with the quality and the ease in which the hitch installed. Everything fit nicely on my 2015 Cadillac SRX. Attached are pics after the hitch was installed. I modified the original center panel by making a few cuts on the panel. I think it looks clean. Of course when I use the hitch I will have to take two screws out of the panel to remove. I used tie strips to secure the wiring to the top of the hitch. The panel hides the hitch & wiring while not in use.



by:
2010 Cadillac SRX

It took a little longer for delivery than I expected but it was exactly what I ordered and needed. It took only 2 minutes to install and the video was spot on. I also ordered the receiver hitch and that was perfect also. I got a few emails from a guy named George asking if everything was ok. Top notch company.



by:
2015 Cadillac SRX

I found the installation MUCH easier than I expected, the receiver fit perfectly! Also, the folks at eTrailer were VERY helpful, and my order arrived quickly and correctly! I installed it on a 2015 Cadillac SRX.



by:
2016 Cadillac SRX

A great experience overall!!! Paid extra for 3 day shipping, got the THE Draw Tight hitch in 2 days.....OUTSTANDING. Watched the installation video for my Cadillac SRX. Easy step by step installation, took less than 40 minutes to install ( easy- peasy). My first experience with etrailer.....Outstanding!!!!



by:
Chevrolet Volt

It took me longer to find my volt meter than it did to install the harness.Works perfect.Now waiting for the hitch .



by:

perfect No problem



by:
2015 Cadillac SRX

Very pleased with entire transaction with etrailer. I purchased a trailer hitch & wiring kit for my 2015 Cadillac SRX. Products were excellent and as described. Prompt & free shipping, as well as top-notch install instructions & videos. Keep up the Great work & I'll be recommending etrailer to others.

Dave

11/18/2017

Awesome, and no issues to report



by:

Fit factory plug perfectly ! Very satisfied and always tell others needing anything to do with trailers,wiring,etc to use etrailer



by:

Instructions were excellent (and simple). Quality hardware from Etrailer



by:
2013 Cadillac SRX

Very easy. I read other reviews and installing the harness is important. Total time about 25 min for everything. Took longer to modify the cover than install the hitch and harness. Etrailer was great to do deal with. 5 Stars.




Fred L.

7/10/2014

Did you modify the original fascia to cover the exposed area between remaining fascia?

John G.

7/15/2014

I modifed the optional cover, not the original. Cadillacsoptional cover is made to fit their hitch that is 1 14.The 2 requires cutting access for the reciever to stickthrough. The part number for the optional fascia ts19172271. Hope this helps you.



by:
2016 Cadillac SRX

Was exactly what I ordered, arrived as promised and snapped into my existing wiring harness without any challenges.....10 minute job!

Vito

8/28/2019

Great



by:
2011 Cadillac SRX

Purchased both the Class III receiver hitch and T-One wiring harness for a 2011 Cadillac SRX. Both were delivered within five days. I watched the installation video and had both the hitch and wiring harness installed in less than 45 minutes. Great product and a true plug and play product.



by:
2013 Cadillac SRX

I purchased a Hidden Hitch for our 2013 Cadillac SRX Performance after reviewing your online installation video. I also ordered a light pig tail that was literally plug and play. It took about two hours and I trimmed the valence and reinstalled to get a factory look. I could not be happier with the quality, value and ease of installation.



by:
2012 Cadillac SRX

Easy plug and play. Some forums indicate Cadillac only provides the harness on all SRX models up to 2012. Newer models must have the tow package. Mine is a 2012 with no tow package. Make sure you install the harness before installing the hitch. Extremely difficult to plug in the harness afterwards, unless you have very small wrists and hands.



by:

The original part that I ordered was wrong. So, I replied to an email that I had received from George regarding the purchase. I did not have to call!! Much to my surprise, both Nicole and George with etrailer responded to my email and gave very clear easy directions to return the item to them. I really appreciated their emails to be sure my return and second purchase went smoothly! I will definitely order from this company again!

Andrea J.

8/21/2016

Excellent product and customer service!



by:
2010 Cadillac SRX

The wiring connection was perfect for my 2010 Caddy SRX. They described the location of the harness and I simply put them together and everything worked perfectly. What a relief because I thought I was going to wire the connections and doing that may have caused other electrical problems.

Many thnaks for your help....Bob G



by:
2015 Cadillac SRX

The wiring was delivered quickly and was the correct part.
It works great!
The YouTube video you have posted on installing the wiring harness on my 2015 Cadillac SRX saved me from having the hitch company cut into all of the wires on the car. They did not know that the car came pre-wired for a hitch and you only needed the connection.
I ordered the part and installed it my self according to your video in under 5 minutes.
Thanks
Todd G from AZ



by:
2013 Cadillac SRX

Simple plug into existing wiring harness. The vehicle comes prepared to take this (2013 Cadillac SRX). You just remove a protective dummy plug out of the harness and plug this in. Piece of cake. BUT make sure you do the wiring before you install the hitch. Otherwise it's very hard to get to.



by:
2010 Cadillac SRX

I just purchased a hitch for my 2010 Cadillac SRX, it fit like a glove and bolted up very easy. what a great product. Just as they stated the wire harness was waiting to be clipped in place with the adapter provided. Nothing at all to say , that isn't great…very cool and easy…I will be back …Thanks E trailer. dub



by:

Trailer hitch was easy to install, had a neighbor give me a hand, worked better with another person to help hold the hitch up while inserting the bolts. Fit was a bit tight but we were able to work it out.
Would recommend.



by:

Easy installation! Basically, I am a cheap Milwaukee kraut, and when I asked for prices of having a trailer hitch installed, I balked at the roughly $300.00 price tag. I logged on to etrailer, found the hitch and wiring adapter, shipped free for a bit more than $140.00. When it arrived, I logged onto YouTube, found the instructions, and installed the hitch in under an hour. Great product and easy-to-follow instructions made the install a piece of cake!



by:
2015 Cadillac SRX

So Simple to hook up to my 2015 Caddy SRX. Hitch was a breeze and so was wiring harness.

Thanks etrailer !


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204
Show More Reviews

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

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    Congrats on your vehicle purchase! A complete towing package includes a trailer hitch receiver, wiring, a ball mount, pin and clip and a ball. For your 2015 Cadillac SRX AWD I recommend going with the Draw-Tite Max-Frame Trailer Hitch Receiver # 75682. This provides you with a 2-inch receiver which not only accepts a larger variety of accessories over the 1-1/4 option, but it also has a higher towing capacity at 4,000 lbs and 400 tongue weight which is plenty enough for the 2,800 lb trailer...
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  • What is Towing Capacity of 2012 Cadillac SRX
    I looked up your 2012 Cadillac SRX and it has a towing capacity of 2,500 lbs so as long as the boat and trailer weigh less than that you'd be fine with this as your tow vehicle. For a trailer hitch the Curt part # C13002 would be a great option with more capacity than you'd need plus a relatively easy install. Then for trailer wiring all you'd need is the # 118259 for an easy install. Since you wanted to do some towing you might be interested in etrailer ball mount kit # 989900. It...
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  • Trailer Hitch and Trailer Wiring Harness Recommended for 2010 Cadillac SRX
    The Curt # C13002 Class III hitch you'd looked at would be a great choice. The hitch offers a 500 lb tongue weight capacity, so as long as the weight of the bike and the carrier you use, such as # e98873 doesn't exceed the tongue weight capacity of the hitch or that of the vehicle itself, the hitch would work well for you. For trailer wiring, you'd use # C59496 if the vehicle isn't set up with the factory tow package or # 118259 if it DOES have the tow package. If you're not sure, a GM...
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  • What is Towing Capacity of 2013 Cadillac SRX
    I was able to find that your 2013 Cadillac SRX has a towing capacity of 2,500 lbs. The trailer wiring harness part # 118259 that you referenced is also the correct fit for your vehicle as well. For a hitch that would give you your full towing capacity we then have the Draw Tite part # 75682 as a fit. I attached an install video for this hitch for you to check out as well. If you wanted to do some towing you might be interested in etrailer ball mount kit # 989900. It comes with 2 ball...
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  • Trailer Hitch Recommendation to Tow a 3,000 Pound Pop Up Camper with a 2012 Cadillac SRX
    The Draw-Tite trailer hitch # 75682 has a gross trailer weight capacity of 4,000 pounds so it can more than handle the 3,000 pound gross weight of the trailer you plan on towing. However you will want to look at the vehicle owners manual to determine what the towing capacity of the vehicle is. Whatever is lower, that is the capacity you must go by. Tongue weight is typically 10 to 15 percent of the gross trailer weight. So if the trailer weighs 3,000 pounds that would make the tongue weight...
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  • Trailer Wiring Recommendation for a 2011 Cadillac SRX
    In order to determine if you can use Tow Ready Wiring Harness, # 118259, or Curt Wiring Harness, # 56096, you will need to check to see if your 2011 Cadillac SRX has the connection point. The connection point is located beneath the rear of the vehicle behind the bumper. I have included a link to the installation instructions that show what you will be looking for. If you find that connector on your SRX, you can use either harness, though the Tow Ready harness is longer. If you do not see...
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    The TowReady wiring harness for the Cadillac SRX that you referenced, part # 118259, is intended for vehicles that have the factory tow package installed. Thank you for your recent purchase of a hitch and related items along with this wiring harness. The exact components that constitute a factory tow package will vary among auto makers and can also vary among different vehicle models and model years. Sometimes wiring may be put in place at the factory but may not be connected at one or...
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    We do carry trailer hitches that will fit your 2016 Cadillac SRX. However, your vehicle does not have a large enough tongue weight rating to be hauled using a hitch mount motorcycle carrier. According to the owner's manual for the 2016 Cadillac SRX, the maximum tongue weight is 250 lbs.Your motorcycle is too large to be carried using a hitch mounted motorcycle carrier. The motorcycle weight of 375 lbs plus the weight of the carrier would be way over the tongue weight limit for your Cadillac....
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  • Recommended Hitch for 2011 Cadillac SRX
    There are Class II and Class III hitches available for your SRX. I'd recommend going with a Class III hitch because it's more common and there's more accessories available for the 2 inch Class III receiver. I'd recommend the Curt Class III, part # C13002. This hitch has a higher capacity than the other hitches, but you might be limited by the towing capacity of your vehicle. Consult your owner's manual for specifics. This hitch is actually the lowest-priced of the Class III options, but...
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    The port that you plug the T-One Vehicle Wiring Harness, part # 118259 into is located behind the rear bumper above the place a hitch would be installed. This harness is designed for vehicles that have a factory tow package. I have attached a link to an installation video for this harness on a 2012 SRX you can check out. At the 10 second mark on the video it shows where you can find the port you need to connect the harness. If you do not have the factory tow package, you will need to...
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  • Trailer Wiring Harness Options for a 2012 Cadillac SRX to Tow a Small Trailer
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  • Trailer Wiring Harness Options for a 2013 Cadillac SRX
    The wiring harnesses available for the 2013 Cadillac SRX come in two different styles. Models that came with a factory tow package do have a plug and play style connector such as # 118259 or # 56096. If you are unsure whether or not you have the tow package you can contact the dealer, give them the VIN of the vehicle and they should be able to tell you how it is equipped. The other style is a hardwire harness such as # C59236. Plug and play harnesses are not always available for all vehicles....
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