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  1. Custom Fit Vehicle Wiring
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  3. Custom Fit
  4. Trailer Hitch Wiring
  5. 4 Flat
  6. Powered Converter
Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Item # HM11143984
Our Price: $63.66
You Save: 41%
Custom Fit Vehicle Wiring

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Hopkins Custom Fit Vehicle Wiring - HM11143984
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Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system. 1-800-940-8924 to order Hopkins custom fit vehicle wiring part number HM11143984 or order online at Free expert support on all Hopkins products. Great prices and Fastest Shipping for Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
  • All Info
  • Reviews (5)
  • Q & A (0)
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  • Why etrailer?

Hopkins Custom Fit Vehicle Wiring - HM11143984

  • Custom Fit
  • Trailer Hitch Wiring
  • 4 Flat
  • Powered Converter
  • Hopkins

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system.


  • 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 behind tail lights
    • Plug in connector
    • Run hot lead to car battery
  • Includes a tail light converter 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
  • Protective connection terminals resist corrosion
  • Comes with dust cap for 4-way flat connector, cable ties, and terminal grease packet for electrical connections


  • Maximum amperage:
    • Stop/turn lights: 3 amps per circuit
    • Tail lights: 6 amps per circuit
  • 90-Day limited warranty


This custom-fit T-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 rear threshold, some interior paneling, and the tail light assemblies to access this harness. Once you've plugged in the connector, run the red hot lead up to your car battery. Connect the included fuse holder, and then connect the fuse holder to the positive terminal on your battery.

T-One Connection Location Points Behind Tail Lights

Once installation is complete, the 4-way flat connector will be stowed in your rear 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.

Powered Tail Light Converter

A tail light converter is built into this T-connector. This converter is a battery-powered unit that bypasses the electrical routes that are used by a basic wiring harness. As a result, there is virtually no draw on your tail light circuits.

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 the trailer. This 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.

11143984 Plug-in Simple Hopkins T-Connector with 4-Pole Trailer Connector

Installation Details HM11143984 Installation instructions

This Product Fits The Following Vehicles

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - HM11143984

Average Customer Rating:  5.0 out of 5 stars   (5 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system.


Over the top customer service, from answering questions pre-order, to help with product selection advise, to two day FREE delivery. Adam is a big asset to your business !!

2013 Hyundai Santa Fe

I could not ask for friendlier service or more prompt delivery. Hitch and wiring were all there and worked perfect. I would deal with them again if I ever need a hitch.


The product was excellent as was the price. Most impressive was the great advice and help in selecting the right product.



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

  • Trailer Hitch that Fits a Hyundai Santa Fe GLS Limited
    As long as your Hyundai Santa Fe is between 2013 to 2015 part # C13153 is the correct hitch for the GLS Limited model. If you also need trailer wiring the correct harness is part # HM11143984. If you have a different model year Santa Fe let me know and I'll verify the correct hitch for you.
    view full answer...
  • Trailer Hitch Receiver Fit and Wiring Harness Recommendation for 2017 Hyundai Santa Fe Limited
    Let's start with the trailer hitch receiver, and I checked with the manufacturer for you and can confirm that the Curt Trailer Hitch Receiver # C13153 is a fit for a 2017 Hyundai Santa Fe Limited, including your Limited Ultimate model. In regards to the wiring harnesses, they can be a bit confusing, so I'd be happy to help out. I assume your 2017 Santa Fe Limited does not have the factory tow package, so I recommend the Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer...
    view full answer...
  • Recommended 4-Pole Wiring Harness for 2018 Hyundai Santa Fe SE without Factory Tow Package
    The 4-pole trailer wiring harness kit you can use for your 2018 Hyundai Santa Fe SE without the factory tow package is Curt part # C56184. This kit's installation is pretty straightforward; plug in the custom-fit connectors at the back of your taillights and then run one single power wire up to your battery. The linked instructions, help article and installation video will show you the entire process. I recommend using dielectric grease # 11755 on all of the connectors when you install...
    view full answer...
    Image 1 for
  • Confirming Trailer Hitch Receiver and Wiring Fit On a 2013 Hyundai Santa Fe
    The etrailer Trailer Hitch Receiver # e98841 will only fit the Sport trim level of your 2013 Hyundai Santa Fe. This trim will have a decal on the rear hatch door as well as only seat 5 passengers. The Curt Trailer Hitch Receiver # C13153 will fit the larger 6 & 7 passenger Santa Fe GLS and Limited trims levels. I cannot lookup your vehicle information based on a VIN number but you can contact your local Hyundai dealer who will be able to help you identify your Santa Fe if you are still...
    view full answer...
  • Is Curt Trailer Hitch Compatible With 2019 Hyundai Santa Fe XL SE with AWD
    I checked with Curt just to make sure and the Curt Trailer Hitch # C13153 is absolutely compatible with your 2019 Hyundai Santa Fe XL SE with AWD. This will give your '19 Santa Fe a Class III, 2 inch hitch that has a concealed crosstube so only the receiver is visible, giving it high functionality but allowing your car to maintain its appearance. This hitch has a 900 lb tongue weight capacity and 6,000 lb towing capacity so it is perfect for towing or carrying a bike rack like the Saris...
    view full answer...
  • Recommended 7-Way Wiring and Brake Controller for 2013 Hyundai Santa Fe
    It's hard for me to say exactly how the 4-Way harness on your Hyundai Santa Fe is installed. The type of wiring you described in your question does not match up to how the wiring harnesses we have available for your Santa Fe will install, whether or not it has the factory tow package. If the Santa Fe does not have the factory tow package, the correct wiring harness will be the Curt T-Connector # C56184 or the Hopkins # HM11143984. Both harnesses will install by plugging into factory ports...
    view full answer...
  • How Can I Transport My 320 Sport Bike on My 2013 Hyundai Santa Fe?
    I have a way for you to safely transport your dual sport bike on your vehicle. I went ahead and looked up the specs for your 2013 Hyundai Santa Fe, and it has a maximum gross towing weight capacity of 2,800 pounds. If this is the case, the maximum tongue weight capacity of your vehicle is 280 pounds. With this tongue weight capacity, you cannot safely mount via a hitch carrier that requires tongue weight. This is because no matter what hitch you use, your sport bike exceeds that 280 tongue...
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Joshua S
Video Edited:
Joshua S
Employee Chris R
Video Edited:
Chris R
Employee Adam R
Expert Research:
Adam R
Employee Cole B
Installed by:
Cole B
Employee Alexander C
Written by:
Alexander C
Employee Jonathan Y
Video by:
Jonathan Y
Employee Clayton O
Test Fit:
Clayton O

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