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

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

Item # 118553
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Custom Fit Vehicle Wiring

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Custom Fit Vehicle Wiring 118553 - Powered Converter - 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 existing wiring. Powered ModuLite reduces strain on wiring system. Call 800-298-1624 to order Tekonsha custom fit vehicle wiring part number 118553 or order online at etrailer.com. Free expert support on all Tekonsha 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.
  • All Info
  • Reviews (32)
  • Q & A (18)
  • Photos
  • Why etrailer?

Tekonsha Custom Fit Vehicle Wiring - 118553

  • Custom Fit
  • Trailer Hitch Wiring
  • 4 Flat
  • 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 in rear cargo area
    • 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 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: 4.2 amps per circuit
    • Tail lights: 7.5 amps per circuit
  • 1-Year limited warranty


Installation

T-One Connection Location Points

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 interior trim panels in your rear cargo area. 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.



118553 Tow Ready T-1 T-Connector - 4 Wire - Modu-Lite

Installation Details 118553 Installation instructions

This Product Fits The Following Vehicles



California residents: click here



Customer Reviews

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 118553

Average Customer Rating:  4.8 out of 5 stars   (32 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.

- 118553
by:

Wiring the hookup for trailer lights on 2016 Nissan NV 1500 was a snap!So easy,except getting up under van to run wire up to battery.Plug and play type connections was easy!



- 118553
by:

This harness was as easy to hook up as the video shows.The only hard part was getting the wire to my vehicle battery.



- 118553
by:

The hitch and the wiring harness arrived quick and were both as advertised. Very pleased with the product and the transaction.



- 118553
by:

Worked as advertised. I did a little customizing to make it appear more natural, but easy either way.



- 118553
by:

Received hitch and wiring harness one day earlier than expected. Hitch bolted up fine and was able to install wiring after watching online video. We are currently on the road destination Grand Isle La. with kayaks in tow. Waited until 11th hour and got it done thanks etrailer!!



- 118553
by:
2013 Nissan NV 2500

Received trailer hitch on time and in great shape. Easy installation did it by myself in about half an hour. I would recommend etrailer.



- 118553
by:

I recently moved to Florida and received many quotes to wire my Nissan NV1500. Each quote was well over $400. etrailer educated me on how to install my hitch and provided me with the installation package and in addition provided me with the brake package, etrailer helped me save $200 plus.



- 118553
by:

The hitch takes minutes to install but the harness is a little tricky. Check out YouTube video for assistance. It helped emensley!



- 118553
by:
Chevrolet Silverado 1500

Nissan 1500 exact fit to electrical connectors, wires are at adequate lengths for installing and connecting to battery . Overall very easy setup and DIY saved me a lot of money over going to the dealer to install my hitch and wiring.



- 118553
by:

Very easy to install.



- 118553
by:
2012 Nissan NV

Better quality than I expected, no difference from factory original parts. From placing the order, tracking information to my phone to nailing the arrival time to my home, every aspect was a pleasant one. Icing on the cake were the helpful installation videos I could refer to along with the instructions. Thanks guys



- 118553
by:
2019 Nissan NV 2500

Product arrived very fast. Came packed very well with no damage. I have had plug and play items before that did not really plug and play with out some modifications. This item was what you would expect from plug and play. Installation was effortless and everything needed was in the package. I'm extremely happy with this item and this company. Thank you for an excellent product.



- 118553
by:

Great connector



- 118553
by:

We dealt with Bailey, she was amazing. Everything was perfect.... Really painless....



- 118553
by:

So I mad my order on a Wednesday and the gentleman Told me I would Receive it on Monday/Tuesday. I actually received it on Friday before schedule! I am so pleased everything hooked up and works great I will be ordering from this site again. Customer support was awesome look forward to doing business with these guys again



- 118553
by:
2015 Nissan NV 2500

A little difficult to get hooked up but still working good a year later



- 118553
by:

Easy to install but time consuming, left turn signal wouldn't work out of the box. Troubleshooted it was a module issue.



- 118553
by:

Every thing went right in. only problem was the wire that goes from the battery to the module was about 8 feet short. No problem, just added what I needed and finished.



- 118553
by:
2013 Nissan NV 3500

Fast shipping, easy instructions.



- 118553
by:

Great company with excellent service and products.



- 118553
by:
2013 Nissan NV 2500

Great product easy installation Best price Thank you



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2018 Nissan NV 2500


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Ask the Experts about this Tekonsha Custom Fit Vehicle Wiring

  • Parts Needed to Install 7-Way and Brake Controller in 2012 Nissan NV 2500
    You will need to start with a 4-way (if you do not have one). For that you would want the # 118553. Now if your trailer does not have brakes all you would need is the part # 37185 as an adapter to convert the 4-way to a 7-way. If you do have trailer brakes you would need the # ETBC7 instead of the # 37185 and a brake controller. This kit comes with everything needed to wire up the 7-way and install a brake controller. For a brake controller I would recommend the Prodigy P2 Brake...
    view full answer...
  • Video Showing # 118553 Trailer Wiring Hanress Being Installed on Nissan NV
    If you click the provided link, you can see the # 118553 being installed on a 2012 Nissan NV. The 118553 plugs inline between the vehicle's wiring harness and the taillight assemblies, and would have a power wire running from the converter box to the positive battery terminal of your NV. I'll also link you to an FAQ article that shows how to run the power wire from the rear to the front of the vehicle.
    view full answer...
  • Parts Needed To Install 7-Way Plug On 2012 Nissan NV 3500 For Brake Controller
    You are correct the 4-Pole Flat wiring for the 2012 Nissan NV 3500 is part # 118553 which will power the lights on the trailer. It sounds like your trailer has brakes and you need a 7-Way plug which would require some hard wiring. I recommend Universal Installation Kit for Trailer Brake Controller part # ETBC7 because it comes with all of the components needed to upgrade the 4-Way plug to a 7-way plug. I have attached an installation video on a 2012 Nissan NV. The installation does require...
    view full answer...
  • Clarification of Installation Instructions for Trailer Wiring Harness # 118553 for a 2012 Nissan NV
    The square box that has all of the wires coming out of it is the converter box. The converter box is needed because the vehicle works on what is called a 3 wire system and trailer work on a 2 wire system. The converter box converts the 3 wire signal to a 2 wire signal so the trailer lights will work properly. The short wire on it attaches to one end of the black wire included with the harness. That is routed under the vehicle and into the engine compartment near the battery where it...
    view full answer...
  • Parts Needed to Install Redarc Tow-Pro Elite Brake Controller in 2013 Nissan NV 2500
    Since your 2013 Nissan NV 2500 already has a working 4-way like part # 118553, you are on the money with the parts you need to install the Redarc brake controller: - Universal Installation Kit for Trailer Brake Controller # ETBC7 - Redarc Tow-Pro Elite Brake Controller # RED44FR - Plug-and-Play Wiring Harness for Redarc Tow-Pro Trailer Brake Controllers # RED39FR These are the exact parts you will need to add the controller to your '13 NV 2500. The Elite will work with your Nissan,...
    view full answer...
  • What Size is the Power Wire That Comes With the Tekonsha T-One Harness that goes to the Battery
    The Tekonsha T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118553 has a 12 gauge power wire that goes to the battery from the Modulite. I've attached the installation details which state the 12 gauge size. I've also attached a video to assist with the installation.
    view full answer...
  • 7-Way Recommendation for a 2012 Nissan NV 2500 to Power an Electric Jack
    What you will need to convert your 4-way to a 7-way so that you can power an electric jack would be the part # 37185. You will also need a length of 10 gauge wire # 10-1-1 (sold by the foot) and then a circuit breaker part # PK54540 to route the power wire from this connector to the positive side of your battery through the breaker. You would not be able to also use the power wire you used to install the 4-way you have on your vehicle. For a trailer side 7-way to install on your trailer...
    view full answer...
  • Recommended Wiring Harness for 2014 Nissan NV 3500 Passenger Van
    The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56148 is a confirmed fit for the Nissan NV 1500, 2500, and 3500 models between 2012 and 2020. There is not a separate fit for the cargo models from the passenger models because they utilize the same wiring. You can alternatively use # 118553 or # HM11143585 which are also confirmed to fit. These are all good options, so I recommend going with the best cost at that time of purchase.
    view full answer...
  • Brake Controller and Install Recommendation for a 2012 Nissan NV 2500
    You will have to hardwire in a brake controller to your 2012 Nissan NV 2500 as there isn't a plug or port under the dash for quick installs. You will need to start with a 4-way (if you do not have one). For that you would want the # 118553. 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...
    view full answer...
  • Trailer Hitch, Wiring, and a Brake Controller for a 2016 Nissan NV 3500 Passenger Van
    Draw-Tite trailer hitch # 75715 fits all models of the 2016 Nissan NV 3500 passenger or cargo vans so I recommend it. I have included a link to the installation instructions and a link to a video showing an example installation for you. The trailer wiring harness # 118553 also fits all models. I have linked a video showing an example installation of the wiring harness as well. It will need to be installed first to add a 7-Way using # ETBC7. I have included some links that show and explain...
    view full answer...
  • Brake Controller Recommendation for 2013 Nissan NV 3500
    Since you installed the 4-way # 118553 on your 2013 Nissan NV 3500 what you need to install a brake controller is the part # ETBC7 and not the part # 3050-P which you referenced. The # ETBC7 comes with everything needed to convert the 4-way to a 7-way and also wire up the brake controller. Had your vehicle had a factory 7-way you would instead have used the part # 3050-P.
    view full answer...
  • Trailer Hitch Recommendation for 2013 Nissan NV 3500 Van
    I'd recommend the Draw-Tite Class III hitch, part # 75715. The hitch has a 7500 lb towing/1125 lb tongue weight capacity. If you're looking for a higher capacity Class IV hitch, go with the Curt Class IV hitch, # C14000. This hitch has a 10,000 lb towing/1000 lb tongue weight capacity, although you'll be limited by the towing capacity of the van if it's lower than the capacity of the hitch. You might also need the following to complete your towing system: Trailer wiring harness, part...
    view full answer...
  • Recommended Trailer Hitch for 2018 Nissan NV 2500
    We have a few trailer hitches available that are confirmed to fit your 2018 Nissan NV 2500. I specifically recommend the Curt Class IV # C14000 because it offers the highest weight capacities (10,000 pounds towing and 1,000 pounds tongue) indicating a stronger hitch and it is made right here in the USA. It will also use existing holes in the van's frame for a completely bolt-on (no-drill) installation. I have attached an installation video that you can also use for reference. All the...
    view full answer...
  • Recommended Trailer Hitch and Wiring Harness for 2015 Nissan NV 2500
    Starting with a trailer hitch for your 2015 Nissan NV 2500, I recommend the Draw-Tite Class III Max Frame Receiver Hitch # 75715. This custom-fit hitch will use existing holes in your vehicle's frame for a no-drill installation. It features a 2 inch receiver, a 1,125 pound tongue weight capacity, and a 7,500 pound towing weight capacity. I also recommend checking the owner's manual for your NV 2500 for its specific capacity, as you will need to follow whichever limit is lower. I have...
    view full answer...
  • 4-Way Wiring Harness Compatible with Tow Ready Mounting Bracket # 18144
    If you are needing a trailer wiring harness for the 2018 Nissan NV 2500 that you have listed in the vehicle fit guide that will work with the Mounting Bracket # 18144, I recommend the Tekonsha T-One # 118553. This custom harness will plug into factory ports behind trim panels in the rear cargo area of the NV 2500 and the 4-Way will fit inside the bracket opening. If you are just looking for a universal hardware harness the Tekonsha 4-Pole # 18252 will work and is compatible with the...
    view full answer...
  • Trailer Hitch, Ball Mount, Ball, Wiring, and Brake Controller for a 2012 Nissan NV
    The Draw-Tite trailer hitch # 75715, does not come with any additional accessories. To complete the towing set up, you will need a ball mount, a ball, a pin and clip, and trailer wiring. To activate electric brakes on a trailer you would need to add a brake controller and 7-Way trailer connector. If the trailer has surge brakes then the brakes will activate when the vehicle brakes with no additional parts needed. For a ball mount, you can use # 40202, and for a pin and clip use #...
    view full answer...
  • Parts Needed to Install a Brake Controller in a 2012 Nissan NV
    I wish there was a plug and play harness that would allow you to install a Tekonsha brake controller but it looks like you are going to have to hardwire a brake controller to your 2012 Nissan NV. The first thing you will need is a 4-way if you do not have one already at the rear of your vehicle. For that I would recommend the Tow Ready Wiring Harness # 118553. I attached installation instructions for this product for you to check out also. Next, you will need to convert the 4-way...
    view full answer...
  • Trailer Wiring Harness Recommendation for a 2012 Nissan 1500 NV Van
    Actually installing a 4-way trailer connector will be a little more involved than just wire a 4-way to the tail light wiring of your 2012 Nissan NV. You will actually want to purchase and install a Tow Ready Custom Fit Vehicle Wiring # 118553. This comes with everything you will need to provide you with a fully functional 4-way at the rear of your vehicle. You will need to run a wire from the converter box to the positive side of the battery also. I attached installation instructions...
    view full answer...

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




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Info for this part was:

Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video by:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Sue W
Video Edited:
Sue W
Employee Kathleen M
Installed by:
Kathleen M
Employee Cole B
Installed by:
Cole B
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 Ryan G
Test Fit:
Ryan G

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