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

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

Part Number: 118343
In Stock
$48.77
Retail:$68.39
You Save: 29%
Custom Fit Vehicle Wiring

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T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector 4 Flat 118343
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Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring - no cutting, splicing or tapping required. Includes tail light converter. 1-800-940-8924 to order Tekonsha custom fit vehicle wiring part number 118343 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 (116)
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Tekonsha Custom Fit Vehicle Wiring - 118343

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

Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring - no cutting, splicing or tapping required. Includes tail light converter.


Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing of wires
    • Locate connection points behind tail lights
    • Plug in T-connector
  • Includes a tail light converter to ensure that your vehicle's wiring matches that of your trailer
  • Constructed of 16-gauge bonded wire
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage:
    • Stop/turn lights: 2.1 amps per circuit
    • Tail lights: 4 amps per circuit
  • 1-Year limited warranty


Installation

This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located behind the driver's-side and passenger's-side tail lights. You will have to remove the tail light assemblies to access this harness.


T-One Connection Location Points Behind Tail Lights

Once installation is complete, the 4-way flat connector will be stowed beneath your vehicle, near the trailer hitch. A mounting bracket (sold separately) is recommended to keep the connector secure.


It is recommended that you use a small amount of grease on all electrical connections - the plugs on your automobile and the 4-pole connector itself - to help prevent corrosion.


Tail Light Converter

A tail light converter is built into this T-One connector. Because most trailers run on a two-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your vehicle's three-wire system need to be combined so they are compatible with the wiring system of your trailer. The tail light converter combines the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights. Note: This will not affect how the tail lights on your vehicle operate.



118343 Tow Ready T-1 T-Connector - 4 Wire

Installation Details 118343 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 - 118343

Average Customer Rating:  4.8 out of 5 stars   (116 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring - no cutting, splicing or tapping required. Includes tail light converter.

by:
2003 Mazda Tribute

No cutting,no splicing!! Just great!!!! Installed on 2003 Mazda Tribute



by:

Very easy to install. The Video shows how easy. No cut wires! Fits over factory wires! A++++



by:

Instructions were very vague, would have had difficulty if I had not viewed the U tube video.



by:
2003 Ford Escape

The product was exactly what i needed at a reasonable price and recieved it really fast

thanks Ryan



by:
2003 Ford Escape

Great product pretty quick install. The directions are poor and need more pictures or better literature.



by:
2002 Mazda Tribute

Very happy with product.I was suprised when it showed up earlier than expected.worked out great was able 2 work on it on the weekend.thank you so much 4 your prompt service.



by:
2001 Mazda Tribute

How easier could it be. So simple I was done in 15 minutes and plugging in the trailer to check it out.



by:

Great product and so easy to install if you throw the directions in the trash immediately. The video shows you exactly what to do and where everything goes step by step so you'll be done in no time.



by:

Works GreatFast Shipping. Easy Installation. Works Great. Video made it very easy to connect. No splicing. Everything fit exactly.



by:

This product was an EXACT match for my vehicle and installed just as easily as stated. In fact I was able to instal it in the same amount of time it took to watch the "how-to" video on the product page.



by:
2002 Ford Escape

Great product. The video instructions were very clear. The installation was even easier than the video led me to believe.



by:

Easy Installation. The video guide on this website made the installation a breeze. It took me no less than five minutes, and now with this wiring harness I Installed my tailgate light bar. This is a perfect product for any use.



by:

The wiring harness works great. The instructions that came with it, however, are worthless. The only correct part of the instructions is knowing the passenger side from the driver side. Use the video on etrailer.com. There is also a text of the video instructions. If not for the video, it would have taken twice as long to figure it out.



by:
2001 Ford Escape

Got the trailer wiring harness (Part # 118343) for my 2001 Escape. I watched the video, and installation was very easy. The hardest part was getting the tail lights off. Less than an hour of work and I had a great trailer hook up with no wire splicing. Now...its off to the lake with my little boat to catch some fish. Thanks for the prompt shipping and email order and shipping updates. Its ncie to do business with a company that keeps their customers updated on their order. I'll be ordering more from etrailer.com.



by:

I bought a used van that had some electrical issues with the factory trailer wiring. When I came across the installation video for this product, I quickly ordered it. Once I got the item, it was VERY easy to install and works like a million bucks!

No more trailer lighting worries!



by:

The wiring set I got here works perfect long term. I pull my work trailer 24/7.. I think I did have to pay attention while installing it but it works. I had to buy this because the wiring on my car and the wiring on a trailer are different. and this was the solution.



by:
2003 Ford Escape

Plug and play - thank you for the step by step install video.



by:

Thank you for quick shipping & a fantastic product! Exactly what I needed to complete my trailer hookup!



by:

Excellent product. Exact fit. Pre drilled holes made it easy for this 67 year old woman to install. Good quality. I also ordered the light kit for my 2003 Ford Escape. Easy to install with provided instructions.

Alice B. profile picture

Alice B.

7/2/2021

Still towing



by:
2002 Mazda Tribute

I am very pleased with the Curt Trailer Hitch Receiver and the ball mount I ordered . I use my trailer frequently to haul lumber, fencing, and riding lawnmower, the product is of good quality and I recommend etrailer



by:
2003 Ford Escape

Ordered this hitch for my 2003 ford Escape. Placed order Sunday eve standard shipping and received wed. Very happy with the product. Drove the rear wheels up on ramps and installed in about 35 min. Slightly difficult by myself but is possible if you hold one side with you foot! I ordered the bolt guide wire which was to lose but twisted it to tighten the spring end so there was no chance of the carriage bolt getting stuck. The wiring loom was plug and play. Whole install hitch and wiring took 1 hour with the help of you tube video.



by:
2003 Ford Escape

I was surprised how easy it was to install the trailer hitch and the wiring harness.
It has worked great and saved me over $150. The pictures really helped.



by:

The directions weren't completely accurate or fully encompassing. With knowledge of trailer wiring and the vehicle wiring, it's easily figured out, but the directions have simple mistakes. This wasn't quite "plug and play" due to no access panel to easily route the trailer plug to the exterior of the van. In order to not make a large hole, I cut the wires to the exterior plug and ran just the wires through the body, rather than having to feed the large plug through.



by:
2002 Mazda Tribute

Mazda Tribute 2002 LX. Excellent product. I watch the installation video which was a big help. No need to get under the vehicle and get dirty. All T connectors were exact fit. My panel where the trailer connection comes through was a little different. Still, I just used my 1/2 drill bit and made 4-5 holes and made an oval for the connector to feed through. I used some black tape to repair the cut you need to make in the grommet for the new cable. For the right side, flat cable I made a "T" cut into the grommet. This allowed the grommet to close around the new cable more naturally and helped with the taping. Used it last weekend, worked like a camp!



by:

When I usually put a trailer wiring harness in I buy the local stuff and then go through all the commotion of trying to get everything to work right never again, bought your product to fit my particular van watched your video then plugged it all in and it worked perfect all for a nice price !!!


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Show More Reviews

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

  • Trailer Hitch and Wiring for a 2004 Ford Escape without Factory Tow Package
    Trailer wiring harness # 118343 only fits up the 2001 to 2003 Ford Escape and will not fit the 2004 models. The only trailer wiring harness we have listed for the 2004 Ford Escape without the factory tow package is the hardwire kit # 46255 that does require splicing into the vehicle tail light wiring. For a trailer hitch the most popular option is Draw-Tite trailer hitch # 75118. I have linked a video showing an example installation for you. If you plan on doing some towing I recommend...
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  • My Radio Clock Goes Out when Brakes are Applied
    You may have a ground problem. In your situation, you have a ground that is strong enough to provide some lighting functions but not all. This is called a weak ground. When the taillights and brake lights are used at the same time, it creates the maximum amp load of the lights on the trailer. If a ground problem exists, it will show at this point. The places to check grounds are as follows: 1. The connector on the vehicle should have a ground wire secured tightly to a clean surface on the...
    view full answer...
  • Availability of Pull Wire to Install Draw-Tite Class III Hitch # 75118 on 2003 Ford Escape
    We do indeed sell that part. You'll need a 7/16 inch pull wire, which we offer as part # 80103-1. If you click the provided link, you can see an install video plus a video that fully explains how to use the pull wire to fish the hitch install hardware through the vehicle's frame members. If you'll be using the hitch to tow a trailer, you'll also need a few other items to complete your towing system: Trailer wiring harness, part # 118343 Ball mount, part # D-4 1-7/8 inch trailer ball,...
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  • 4-Way Trailer Wiring Recommendation for 1993 Ford E-350 Van
    For your 1993 Ford E350 Van the only style of trailer wiring we have is the kind that installs inline with the vehicle taillights like the T-One kit part # 118343. With this kit you'd unplug your vehicle taillight connectors and plug this kit inline and you'd be set.
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  • What are the Custom Vehicle Trailer Wiring Options for a 2007 Ford Escape
    The Hopkins Custom Fit Vehicle Wiring, # 40455, will fit your 2007 Ford Escape if it has a factory installed tow package. If you are not sure, look for the connector behind the bumper near the drivers side taillight. The factory tow packet is already wired properly so you will not need to add any fuses, converters, or relays. If you cannot find the connector there, or anywhere else, chances are you do not have the factory tow package. If there is a connector, you should check to make sure...
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  • Why Does T-One Vehicle Wiring Harness Need to Be Connected to Both Taillights on 2002 Mazda Tribute
    You will want to connect the Vehicle Wiring Harness # 118343 to both taillight assemblies on your 2002 Mazda Tribute. The wiring harness needs signal from both taillights so the trailer's turn signals will function properly. The 4-Pole connector provided by the 118343 harness will provide taillight, right turn/stop, and left turn/stop functions for your trailer. I have attached a help article on trailer wiring for you.
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  • What are the Wire Functions for Trailer Wiring Harness C56175 for a 2001 Ford Escape
    You will need to use a circuit tester like # PTW2979 if needed to test the tail light wires to determine the functions. You cannot go by color alone because vehicle manufacturers can change wire color so there is no standard. Once you have determined the functions of the wires on the vehicle you will attach the yellow wire to the left turn signal wire, green to right turn signal wire, red to brake light wire, and brown to running lights. The white wire needs to be grounded to a bare metal...
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  • Installing Curt Wiring Harness on 2003 Ford Escape with Factory Tow Package
    If your 2003 Ford Escape is equipped with the factory tow package, the built-in plug that is used to connect the Curt T-Connector Harness # C55255 that you were looking at will be located behind the driver's-side interior trim panel in the rear cargo area. The rear scuff panel will need to be removed to expose the connector. Once this connection is made you will have a fully-functional 4-Way connector to connect with and power a trailer's basic signal lights. I have attached the written...
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  • Recommended Trailer Hitch for 2003 Ford Escape
    I do have a solution for you, however the 90635 trailer hitch you mentioned is a Hidden Hitch product that is no longer in production. For your 2003 Ford Escape, I recommend the Draw-Tite Max-Frame Trailer Hitch Receiver # 75118. Draw-Tite and Hidden Hitch were/are owned by the same parent company, so this hitch is very similar and will install in the same manner on your vehicle. This is a very nice Class III hitch that will provide a 2 inch receiver opening and a towing capacity of 3,500...
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  • Best Trailer Wiring Harness for 2003 Ford Escape
    The trailer wiring harness I recommend for your 2003 Ford Escape is the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118343 because of its reliability and ease of installation. This harness does not require running a hot lead to your Escape's battery, unlike other wiring harnesses for vehicle, which is going to make it much simpler to install. I have added a link to a video install for you on a 2003 Ford Escape of the T-One Vehicle Wiring Harness # 118343. If you...
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  • Ball Mount and Hitch Ball Recommendation for 2001 Ford Escape Towing Small Trailer
    Trailers don't really have classifications like hitches do. Hitch classification has to do with the capacities of the hitch which depends largely on the weight ratings of the trailer. As long as the weight of the trailer is less than the capacity of the hitch and vehicle you'd be fine to tow it. If you had the Curt 1-1/4 inch hitch # C11106 installed on your vehicle you would need to use the recommended ball mount part # C45521. Which then for a 2 inch ball you would want the # A-82. If...
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  • Adding a Curt Brake Controller to a 1994 Ford Van
    If your 1994 Ford E-350 van came with a factory installed 7-Way trailer connector then all you will need is the brake controller and the proper wiring harness. For Curt brake controllers the wiring harness is # C51322. If the van came with a factory 4-Way then you will still use the same harness but the brake (blue) wire will need to be manually run from the brake controller back to the plug in the rear instead of going through the harness where it plugs into the vehicle. The brake controller...
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  • Why Vehicle Wiring Harness, # C55255, Is Not Working In A 2002 Ford Escape
    On your 2002 Ford Escape you do not need the additional relay. That is only for the 2008 and newer Ford Escape. It sounds like you have the port, but do not have the tow package. Unplug the Vehicle Wiring Harness, # C55255, from your port on the vehicle and with a Circuit Tester Kit # PTW2993 check the vehicles port to see if you are getting current to all the pins in the port. If you have current to all the pins then the Vehicle Wiring Harness, # C55255, would be the problem. If you...
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  • Brake Controller and Wiring Recommendation for 1994 Ford E-250
    To add wiring and a brake controller to your 1994 Ford E-250 I recommend the following parts: T-One Wiring Kit - # 118343 Universal Wiring Kit - # ETBC7 No-Drill Mount Bracket - # C57202 Extra Wire - # 10-2-1 (sold by the foot) Tekonsha Primus IQ Controller - # TK90160 The T-One wiring tees in behind the tail lights on your E-250 for the basic light functions for your trailer. The Universal Wiring Kit comes with everything else you need to get the wiring installed on your vehicle. The...
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  • Trailer Hitch, Ball Mount, Ball, and Wiring for a 2002 Ford Escape XLS
    Draw-Tite hitch # 75118 will fit your 2002 Ford Escape XLS. It is the most popular hitch option for your vehicle. I have included a link to a video showing a typical installation and a link to the instructions for you. If you plan on doing some towing I recommend etrailer ball mount kit # 989900. It comes with 2 ball mounts, 2 balls, a hitch pin with clip, and a storage bag. For trailer wiring use # 118343. I have linked instructions and a video for the wiring as well.
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  • Install Details for Tekonsha 118343 Trailer Wiring Harness on 2002 Ford Escape
    I can do you one better than that!! How about an install video showing the # 118343 being installed on a 2002 Escape? The connectors will plug inline between the taillight assemblies and the vehicle's factory wiring harnesses that feed the taillights. The video does a pretty good job of walking you through the whole process. If you have any questions after watching the video, just give us a call or reply to this email and we'd be happy to help!
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  • Troubleshooting Non-Functioning Trailer Right Turn Signal
    It sounds like you have a 4-pole wiring harness on your vehicle that you are troubleshooting since the right turn signal is not appearing on your trailer's lights even though the right signal on the vehicle still works correctly. Since the 4-pole harness combines the stop and turn lights for each side of the car you can check the wiring by applying the brake pedal. If the right brake light on the trailer works but the right signal does not, then you may have a bent contact on one of the...
    view full answer...
  • Does Trailer Wiring Harness For 2003 Ford Escape Without Tow Package Require Upgrading Lights
    For your 2003 Ford Escape without the factory towing package, you will not have to do any upgrading of your vehicle's lights to install and use the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118343. This harness will work perfectly as is without any type of modification to your Escape's lighting. The only thing I recommend adding is mounting brackets, the No-Drill Mount for Electrical Mounting Bracket # 18140 with Mounting Bracket # 18144. These will allow you to...
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  • Replacement 4-Way Trailer Connector for a 2001 Ford Escape with Factory 4-Way
    The replacement 4-Way trailer connectors for the 2001 Ford Escape with Factory tow package that we carry have square connectors, # C55255. If you follow your 4-Way wiring forward on the vehicle and it does have a square connector then you can use either of these replacements. If it does not then the only option would be to either splice in a new 4-Way using # 18252 or replace the whole harness using # 118343.
    view full answer...
  • I Keep Burning T-One Harnesses 118343 on my 2002 Ford Escape
    They have a 1 year warranty. Since you have burned up 2 of them already, I would check to see if something is wrong on your trailer. These harnesses do have a limit as to the amperage they can deliver to the trailer lights. If that limit is exceeded, either a fuse on the Escape will burn up or the converter will burn up. You could also have an intermittent short on one of the light fixtures. I would tend to think you have too many lights or are drawing too much current through the converter....
    view full answer...
  • Will Draw-Tite Class III 2 Inch Hitch # 75118 Fit 2003 Mazda Tribute With Full Size Spare Tire
    The Draw-Tite Class III 2 Inch Hitch, part # 75118, will fit your 2003 Mazda Tribute V6 4WD. The installation instructions do not mention any interference with the spare tire. I looked up the Mazda Tribute and the spare tire seems to be located in a spare tire well inside the vehicles rear cargo area. It does mention that minor heat shield modification may be required. I am including a link to the installation instructions that will show you where the hitch will be installed and a video...
    view full answer...
  • Length of Yellow Wire of T-One Vehicle Wiring Harness # 118343
    I spoke with my contact at Tekonsha and they informed me that the length of the yellow wire on the T-One connector part # 118343 measures 95 inches. I attached an install video for this kit for you to check out as well. In it you'll see that the yellow wire has no issue being long enough.
    view full answer...
  • Trailer Hitch and Towing Accessories Recommendation for 2003 Ford Escape
    For a Class III hitch for a 2003 Escape, I'd recommend the Draw-Tite # 75118. If you'll be towing with your Escape, you'll also need the following to complete your towing system: Trailer wiring harness, part # 118343 Ball mount, part # AMSC2 1-7/8 inch trailer ball, part # 19260 or 2 inch ball, part # 63845 Trailer hitches are custom designed to be vehicle specific. The # 75121 hitch you referenced is a fit for the Chevy G Series van, and wouldn't fit your Escape. I've linked you to...
    view full answer...
  • Trailer Wiring Recommendation for a 2003 Mazda Tribute
    We have several trailer wiring options that are confirmed to fit your 2003 Mazda Tribute, but the part # HM48895 that you referenced is not one of them. Instead you would want the part # 118343 if you don't have the tow package and part # C55255 if you do have it.
    view full answer...


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