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. Call 800-298-8924 to order Tow Ready Custom Fit Vehicle Wiring part number 118487 or order online at etrailer.com. Free expert support on all Tow Ready products. Guaranteed Lowest Price 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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Custom Fit Vehicle Wiring > Trailer Hitch Wiring > Powered Converter > 4 Flat > Custom Fit > Tow Ready


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

Tow Ready Custom Fit Vehicle Wiring

(4 reviews)


Code:   118487

Retail:$69.84

Price:$56.95


Custom Fit Product

Shipping Special

Shipping Weight: 1.85 pounds

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Tow Ready Custom Fit Vehicle Wiring - 118487

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





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


Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.



Video Transcript for Trailer Wiring Harness Installation - 2015 Ford Mustang

Today on our 2015 Ford Mustang, we're going to review and install the Two Ready T1 Custom Fit Vehicle Wiring Harness with 4-Pole Trailer Connector, part number 118487. Now we'll go ahead and review and show you the operation of our 4-flat trailer connector. Our trailer connector gets stored inside down in the spare tire well. We'll simply take the 4-flat connector out, run it out over the threshold, staying away from the truck latches pinching it off in the latch, can't harm the wire. However, the weather stripping is thick enough that we can simply close the trunk on it. Then, we'll run the 4-flat connector down to our hitch or address.

Then once we're finished, we simply open up the trunk, roll up our wiring, and store it down in the rear cargo area. The 4-flat trailer connector will duplicate the manufacturer's running, turn, and brake signal circuits on our trailer. The standard 4-flat connector will fit many applications. Now let's go ahead and show you how to install it. To begin our install, we're going to go ahead and open up the trunk, and then remove the spare tire cover. We'll just pull it out and set it aside for installation later.

Next, we need to remove the rear threshold. To remove the threshold, there are a total of four fasteners that we'll need to go ahead and remove. These just twist out like a screw. There's two on the passenger side and two on the driver's side where we can repeat the same process. Now once we remove those, we're going to go ahead and pull up and out on the threshold to release any fasteners underneath.

Now that our threshold is out of the way, we're next going to remove the fasteners and secure the carpeting behind the tail light assembly. We're going to go ahead and remove a couple of them. One here towards the back lid portion of the trunk, and one just out behind the seat. To remove the fasteners, we can use a flat blade screwdriver or, in this case, we're going to use an interior trim panel tool. We'll go ahead and pop them free, pull them out, and set them aside for reinstallation later. Now with those fasteners removed, we're going to go ahead and slide the carpeting out of our way.

Now with the carpeting out of the way, we'll go ahead and locate the manufacturer's wiring that comes out of the tail light. There's a connector here that we'll need to separate. To separate them, we can press on the locking tab and pull the two apart. Now once we have separated the two connectors, we'll go ahead and bring in our new wiring harness. This is our Two Ready Custom Fit Wiring Harness, the converter box, coming out of the converter box is going to be the yellow and brown wire T connector. The connectors here will match the manufacturer's wiring connectors, and we can plug directly into them. Now with that done, we also have a green wire T connector coming from our converter box, and this is going to route over the passenger side and repeat the same process. When routing over to the passenger side, we're just going to basically follow the manufacturer's wiring as it routes underneath the threshold that we removed earlier. Now once we've made our connection, we'll go ahead and use the zip ties provided to secure our wiring as necessary. Then once we have our wiring secured, we'll go ahead and take a pair of side cutters and just cut off the excess from the zip ties to clean up the install look, and get the excess out of the way. Now with our connections made here on the passenger side, we can go ahead and reinstall the carpeting. All right. Next we're going to take the converter box and mount it. To mount it, we're looking for a clean, flat surface, preferably sheet metal, to use the two-way adhesive provided with our install kit. Remove one side of the adhesive and attach it to the converter box, and the other side, and attach it to the body of the vehicle. Here below the driver's side tail light is a perfect location. Go ahead and firmly press it into place to get a good, cohesive connection. Next, we'll take the white wire with our preattached ring terminal. This is going to ground for the converter box and four-pole trailer connector. We're going to mount it here to the body or sheet metal of the vehicle. What we're looking for is an area where the sheet metal doubles up for a good, secured connection point. Next, we'll move to the red wire that comes from our converter box. This is our 12-volt power supply for our converter box, and ultimately gets connected to the battery. Now to connect the extra length of black wire with the red wire, we'll use the yellow butt connector provided with our install kit. Slide the butt connector on to the power wire and crimp it down. Then we'll slide it on to the red power wire and crimp it down. Go ahead and give the two wires a quick tug to make sure we got a good connection point, then I recommend to wrap it up with some black electrical tape to help keep it free from dirt, dust, debris, and moisture. All right. Next, we'll go ahead and start routing our power wire. Keep in mind, when routing your wire, to stay away from any moving component, so your steering or suspension, or excessive heat, such as exhaust. Now for routing our power wire, we recommend to go through one of the manufactured grommets. For this application, we can lift up the carpeting just behind the back seat and locate the manufacturer's grommet that we can route through. To route through it, we're just going to use our utility knife to cut a small slice in the grommet, and then push our wire through it. Now with the power wire, route it outside and underneath the vehicle, we're going to move back here behind the driver's side tail light assembly, secure the remaining pieces of our wiring, and then reinstall the vehicle's interior. Now we'll go ahead and move underneath the vehicle, grab hold of the power wire, and pull it through. Now once we get underneath the vehicle, to help stay away from the exhaust and suspension, we're just running over the top of the rear axle, and then following the manufacturer's brake lines up towards the engine compartment. Now to make it easier to follow the manufacturer's brake lines, we're going to remove the shield or cover underneath, route our wire, and then reinstall it. Keep in mind as we route our wire, we'll also use the zip ties to secure it as necessary. Once we get to the bottom of the engine compartment, we'll feed it up behind the sheet metal into the engine compartment, and ultimately to the top of the firewall. Now with our power wire routed into the engine compartment, go ahead and pull it up, and we need to route it over to the passenger side, where we can access the manufacturer's 12-volt battery source. To route over to the passenger side, we're going to move along the top trim here, and we'll use a small drill bit to drill into the plastic so we can create some attachment points for our zip tie to secure our wiring. Now to access the 12-volt battery supply, we're going to remove the fuse box cover here, and pull back on the cover latch block, and just lift it up and out of the way. Here, we have the battery supply coming in to the fuse box. We're going to use the post here to connect our inline fuse holder to. Our fuse holder is a loop that we're just going to cut in half. We'll strip back both sides and attach a ring terminal to one side for connecting to our battery source, and a butt connector to the other. Now with the fuse holder prepped, we can cut off the excess from our power wire, strip it back, and add it to the other side of our butt connector. Then we can wrap up our butt connector with some black electrical tape. Then we'll go ahead and install the ring terminal on to the battery terminal. To do that, we'll remove the nut and the positive battery post, install the ring terminal, and then resecure the nut. We can close the fuse box cover, we'll take the fuse holder, put our fuse in, and then finish securing the wiring. Go ahead and cut off the excess from the zip ties to clean up our install look. Now to test our 4-pole trailer connector, we'll simply take our test light, ground clamp, put it on the white wire terminal, and then test the brown wire terminal for our running light circuit. Then the next terminal over will be the yellow wire terminal for the driver side turn signal and brake. Our fourth pin will be the green wire terminal for the passenger side turn signal and brake. Just like that, it's installed and we're ready to hit the road. There you have it for the Two Ready T1 Vehicle Wiring Harness with 4-Pole Trailer Connector, part number 118487, on our 2015 Ford Mustang. .


This Product Fits The Following Vehicles

2010 - 2015 Ford Mustang

2010 - 2010 Ford Mustang All Models

2011 - 2014 Ford Mustang All Models except GT

2015 - 2015 Ford Mustang Convertible models

2015 - 2015 Ford Mustang Fastback models

2012 - 2014 Ford Mustang GT models

2011 - 2011 Ford Mustang GT models - Convertible

2011 - 2011 Ford Mustang GT models - Coupe


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Customer Reviews

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 118487

Average Customer Rating:  5.0 out of 5 stars   (4 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.


- 118487

by: Donald L12/08/2013


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! 109544






- 118487

by: Tim K06/02/2014


The Sportframe hitch was quick to bolt up with the excellent fish wires. It actually took longer to install the wiring harness! 133662






- 118487

by: Scott W08/02/2012


Everything arrived as stated, no problems, very happy. 50268






- 118487

by: Jim S.10/20/2014


Exactly what I needed, with fast delive ry! 156900




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Ask the Experts about this Tow Ready Custom Fit Vehicle Wiring
Do you have a question about this Custom Fit Vehicle Wiring?


  • 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, 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 save some money by...
    view full answer...

  • Will Draw-Tite Trailer Hitch 24863 Fit a 2012 Ford Mustang Boss 302
  • It sounds like you race your 2012 Mustang. Are you sure you want to add the additional 25 pounds? I know it isn't much weight but it could be the difference between a win and a loss! This question has come up before and Draw-Tite hitch # 24863 will fit the 2012 Ford Mustang Boss 302. However, you may want to consider using the Hidden Hitch brand trailer hitch # 60280. It will also fit. The only difference is that it comes with a ball mount, hitch pin, and clip. For a properly sized...
    view full answer...

  • Hitch Recommendation for a 2011 Mustang GT Convertible Calif Special
  • For your 2011 Ford Mustang GT Convertible California Special I would recommend you get a Hidden Hitch, part # 60280. This hitch is designed to work on all models of Mustangs including your Convertible California Special. The problem is in the rear fascia and exhaust, the California Special model uses a different rear fascia and exhaust that is not compatible with the Curt Hitch, part # C11061. I attached installation instructions for you to check out also. You may need the following...
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  • Recommend Trailer Hitch for 2010 Ford Mustang V6 with Boss Rear Bumper
  • For your 2010 Mustang V6, you will need the Draw-Tite Trailer Hitch, part # 24840. The hitch will bolt up to the frame of your Mustang, but since you have a Boss rear bumper, additional trimming of the bumper fascia may be required. The Draw-Tite Hitch # 24840 is a Class I 1-1/4 inch hitch. You will want to make sure not to exceed the towing and tongue weight capacity of the hitch or vehicle as stated in the vehicle owners manual. If you will be using the hitch for hitch mounted accessories...
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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, and the Magenta Sports Trailer, # RRT80, are roof racks 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...
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  • No-Drill Trailer Hitch for a 2012 Ford Mustang 6 Cylinder Coupe
  • The Draw-Tite trailer hitch, # 24863, will fit your 2012 Ford Mustang, 6 cylinder coupe. There is no drilling involved and you should not have to cut or trim anything to install the hitch on your Mustang. I have included a link to the installation instructions for you. If you will be doing some towing, it would be better to go with Hidden Hitch trailer hitch # 60280 because it comes with the correct ball mount, hitch pin, and clip. For a 1-7/8 inch ball use # 19256 and for a 2 inch use...
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  • Will the Hidden Hitch Class I Trailer Hitch Fit on a 2012 Ford Mustang Boss 302
  • I spoke with my contact at Hidden Hitch and the Hidden Hitch Class I Trailer Hitch, # 60280, will fit on your 2012 Ford Mustang Boss 302. If you are looking to add a trailer hitch to your vehicle to carry a bike rack, then you may want to take a look at the Swagman XTC-2 Platform Bike Rack, # S64670. This is our most popular bike rack which allows you to easily mount two bikes and will leave plenty of room for you to access your trunk. This trailer hitch includes a draw bar and pin...
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  • Hitch Recommendation for a 2011 Mustang GT with an April 2010 Build Date
  • To avoid all of those fit issues that the early 2011 Ford Mustangs had I would recommend you use a Draw-Tite Trailer Hitch for the Ford Mustang, 2011, part # 24863. There have not been any fit issues with this hitch like some of the Curt hitches have had. There have been instances where there have been slight fascia deformation when used with this hitch, but when I spoke with my contact at Draw-Tite he informed me that this is most likely seen on the California-Special Mustangs You...
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  • Will Draw-Tite Class I 1-1/4 Inch Hitch # 24863 Fit A 2011 Ford Mustang Convertible
  • I spoke with my contact at Draw-Tite and they said that the Draw-Tite Class I 1-1/4 Inch Hitch, part # 24863, will fit a 2011 Ford Mustang convertible. This hitch has a gross towing weight capacity of 2,000 lbs. and a tongue weight capacity of 200 lbs. Some items you may need to complete your Class I towing setup are the Draw-Tite Ball Mount, part # 3594, the Tow Ready 2 Inch Hitch Ball, part # 19258, and the Tow Ready T-One Wiring Harness, part # 118487. I am including a link to the...
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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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  • 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...
    view full answer...

  • Problem With Using Hitch on 2011 Ford Mustang Due to Its Unibody Contruction
  • As long as the # 24863 Draw-Tite Class I hitch you referred to is properly installed and its 2000 lb towing capacity and 200 lb tongue weight capacity is not exceeded, the fact that your Mustang has a unibody won't cause any issues. I'm not aware of any jurisdiction or locality that would have a problem with you installing a hitch on that vehicle. The Draw-Tite hitch would be an excellent choice as an attachment point for a cargo carrier like the Pro Series # 6500 or for a two bike rack...
    view full answer...

  • Availability of a Trailer Hitch and Wiring for a 2011 Ford Mustang GT
  • I spoke with my contact at Hidden Hitch and he stated that trailer hitch # 60280, will fit the 2011 Mustang GT. I have included a link to the installation details. If you plan on doing some towing the hitch comes with the proper ball mount. For a 1-7/8 inch ball use # 19256 and for a 2 inch use # 19258. For trailer wiring use # 118487.
    view full answer...

  • Trailer Hitch, Ball Mount, Ball, and Wiring for a 2013 Ford Mustang Towing a Small Trailer
  • For a compatible trailer hitch for your 2013 Ford Mustang I recommend Hidden Hitch trailer hitch # 60280. It comes with the proper ball mount, hitch pin, and clip. For a 1-7/8 inch ball use # 19256. If you ever need a 2 inch ball use # 19258. For trailer wiring you can use # 118487. Motorcycle trailers typically are designed with separate brake and turn signal lights. But since your trailer uses a 4-Way connector you will not need to add any type of converter for it to work with the...
    view full answer...

  • Availability of Trailer Hitches for 2014 Ford Mustang GT
  • We do indeed offer hitches for the 2014 Mustang GT. If you'll be doing some light duty towing, go with the Hidden Hitch Class I hitch, part # 60280. The hitch includes a pin and clip and the manufacturer recommended ball mount. If you'll be towing, you'll also need the following to complete your towing system: Trailer wiring harness w/ 4-pole trailer connector, part # 118487 2 inch hitch ball, part # 19258 1-7/8 inch hitch ball, part # 19256 Locking hitch pin, part # RH2-XL If...
    view full answer...

  • Which Hitch Fits 2011 GT500 and is Nearly Invisible
  • I recommend going with Hidden Hitch trailer hitch part # 60280. When this hitch is installed on a 2011 Ford Mustang GT500, the rear fascia will conceal everything with the exception of the receiver. I am including a link to the installation instructions of this hitch and it will show a picture of where the hitch will be located on the car in relation to the rear fascia If you plan on doing some towing the hitch comes with the correct ball mount, pin, and clip. For a 1-7/8 inch ball you...
    view full answer...

  • 2012 Mustang Trailer Hitch Availability
  • We do offer several hitches that are confirmed as a fit for your 2012 Ford Mustang GT. I have provided a link for your reference that lists them. Of the options available I recommend the Draw-Tite Class I # 24863. Please keep in mind if you are using this for towing or hitch mounted accessories you need to use Class I compatible products. Please be aware that normally the GT models low slung rear fascia does require trimming, because a hitch needs clearance to be able to carry items...
    view full answer...


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



Info for this part was:


Photos by:
Theodore B

Expert Research:
Michael L

Expert Research:
Michael H

Video by:
Joshua S

Test Fit:
Nicholas E

Video Edited:
Jacob T

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