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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 # HM11142464
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Custom Fit Vehicle Wiring

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Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector Powered Converter HM11142464
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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. Call 800-298-1624 to order Hopkins custom fit vehicle wiring part number HM11142464 or order online at etrailer.com. Free expert support on all Hopkins products. Guaranteed Lowest Price 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 (11)
  • Q & A (8)
  • Photos
  • Why etrailer?

Hopkins Custom Fit Vehicle Wiring - HM11142464

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

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 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 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.

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.

11142464 Plug-in Simple Hopkins T-Connector with 4-Pole Trailer Connector

Installation Details HM11142464 Installation instructionsAlternate Instructions HM11142464 Installation instructions

This Product Fits The Following Vehicles

California residents: click here

Customer Reviews

Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - HM11142464

Average Customer Rating:  4.4 out of 5 stars   (11 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.

- HM11142464
2016 Jeep Cherokee

The trailer connectors arrived and although I specifically ordered for a 2016 jeep Cherokee the instructions for labeled for a 2014. While the system did work , it required several work arounds and mods to accomplish a successful installation. No double sided tape was shipped with the product ($12 from [local auto part store]) and the right side harness required a splice of additional wire to reach the right side taillight . All said and done the product worked fine and the trailer is fully functions and legal.

- HM11142464

Installations was very easy , even for the diy person. Product worked as expected for the first couple of uses, but after that system shorted out on the tail light circuit, by then I had lost all information from ordering. When it happened I was 400 miles away from home, and towing a trailer. I had to run a jumper wire straight from the battery to power my taillights to get back home. Needless to say , not a very pleased customer with this product.

- HM11142464

Works good lasts a long time.

Minimal use but no issues after 1 year
Texas - 11/14/2020

- HM11142464

Arrived quicker than anticipated with everything. Will update when installed. Thanks etrailer.

- HM11142464

This product was easy to install with easy instructions

- HM11142464

Very easy to install. Good directions, easy to follow.

- HM11142464
2017 Jeep Cherokee

Had an issue with the shipping but George took care of the problem quickly. Great Customer Service.

- HM11142464

Excellent service, packed great and will work just fine.

- HM11142464
2015 Jeep Cherokee

Easy to install and very good quality.

- HM11142464
2018 Jeep Cherokee


- HM11142464
2014 Jeep Cherokee

Amazing customer service!!!


Ask the Experts about this Hopkins Custom Fit Vehicle Wiring

  • Hardwired 4-Way and Parts Needed for 7-Way for 2017 Jeep Cherokee
    It sounds like your 2017 Jeep Cherokee does not have the factory tow package, and if you tried a plug-in harness, the Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # HM11142464 but it did not work, then you will need to add a universal, hardwired 4-way, the Upgraded Circuit Protected ModuLite with 4-Pole Flat, Hardwire Kit, and Circuit Tester # 119179KIT. This will work so long as you are sure your Jeep's wiring is not damaged, and then to add a 7-way...
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    Image 1 for
  • Troubleshooting Hopkins 4-Way Flat Trailer Wiring Kit on a 2015 Jeep Cherokee
    I do have a way you can test to see what it going on with your Hopkins # HM11142464 unit. If you are getting constant power on all of the lighting function pins then what you want to do is take a circuit tester like part # PTW2979 and test the wires coming from the connectors that tee in behind the taillights on your 2015 Jeep Cherokee. If those wires don't have constant power going in but they do coming out then the power module is messed up internally and you need to replace your wiring. Since...
    view full answer...
  • Hopkins 4-Way Wiring Harness Compatible With 2014 Jeep Cherokee
    A Hopkins wiring harness is absolutely compatible with a 2014 Jeep Cherokee, but it depends on the harness; you will need a wiring harness that is designed specifically to fit your '14 Cherokee in order for it to work. The correct Hopkins harness is the Hopkins Plug-In Simple Vehicle Wiring Harness # HM11142464. This will plug in behind your tail lights and you'll run a hot lead to your battery for the install, as you can see by the linked installation instructions. Additionally,...
    view full answer...
  • Can Trailer Wiring Harness Be Connected to the Power Outlet at Back of a 2016 Jeep Cherokee
    Even though attaching the power wire to a 12 volt outlet would make installation a little faster, the trailer wiring harness # HM11142464 needs to be connected directly to the vehicle battery on your 2016 Jeep Cherokee. This is so it is fused by itself and so the harness can maintain its level of isolation from the vehicle wiring protecting it from short circuits and possible costly repairs. I have included a link to a video showing installation of wiring harness # 118605 which installs...
    view full answer...
  • What is the Towing Capacity of a 2015 Jeep Cherokee
    If you are ever in doubt about the towing capacity of the vehicle then there is a sure fire way to tell and you will not need to know any of the options the vehicle is equipped with in order to do so. This process includes opening the driver door and looking for a white sticker. This sticker will have a gross combined weight rating (GCWR) and a gross vehicle weight rating (GVWR) figure. If you take the GVWR and subtract that from the GCWR then that will give you the maximum gross trailer...
    view full answer...
  • Adding 4-Way Trailer Connector to 2016 Jeep Cherokee Trailhawk with OEM 7- and 4-Way Connector
    The Hopkins Plug-In Simple Vehicle Wiring Connector # HM11142464 referenced in your question will plug into ports behind the driver and passenger side tail lights on your 2016 Jeep Cherokee Trailhawk to provide you with an additional 4-Way connector. Because it will be wired to different circuits than your existing OEM 7- and 4-Way connector both connectors can be used at the same time. It sounds like you are then looking for a way to integrate the new 4-Way into the OEM bracket on...
    view full answer...
  • Trailer Wiring Recommendation for 2015 Jeep Cherokee
    We have a custom fit trailer wiring harness by Hopkins that does fit your 2015 Jeep Cherokee. For that you would want the part # HM11142464. We have confirmed this as a fit with Hopkins so we know it will work well. If you have something totally different in mind send me the picture you mentioned.
    view full answer...
    Image 1 for
  • Will Adding Aftermarket Part Increase Towing Capacity of 2016 Jeep Cherokee
    Adding aftermarket parts to your 2016 Jeep Cherokee can improve your towing experience but it's not going to increase your towing capacity. Your Jeep's towing capacity is determined by Jeep based on how it is equipped at the factory and adding aftermarket parts will not change that. From my research the 2016 Cherokee without the tow package has a max towing capacity of 2,000 pounds so you can not safely tow a 4,500 pound trailer, regardless of what you have added. Like I said orginally,...
    view full answer...

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Info for this part was:

Employee Michael H
Expert Research:
Michael H
Employee Jeff D
Installed by:
Jeff D
Employee Laura H
Written by:
Laura H
Employee Alan C
Video by:
Alan C
Employee Sarah W
Updated by:
Sarah W
Employee Alexander C
Updated by:
Alexander C

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