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  1. Custom Fit Vehicle Wiring
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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 # HM11143645
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Custom Fit Vehicle Wiring

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HM11143645 - Custom Fit Hopkins Custom Fit Vehicle Wiring
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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 HM11143645 or order online at 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.
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  • Reviews (17)
  • Q & A (0)
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Hopkins Custom Fit Vehicle Wiring - HM11143645

  • 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 in rear cargo area
    • Plug in connector - no cutting or splicing
    • 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
  • 90-Day limited warranty


This custom-fit T-connector plugs into your vehicle's wiring harness, which is located in your rear cargo area on the driver's side and passenger's side. You will have to remove the rear threshold, storage covers, and some interior paneling 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.

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.

11143645 Plug-in Simple Hopkins T-Connector with 4-Pole Trailer Connector

Installation Details HM11143645 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 - HM11143645

Average Customer Rating:  4.8 out of 5 stars   (17 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.


Exactly what I needed and instructions were easy to follow. It also arrived earlier then expected. Happy with it all.


Easy installation


Easy to install, just follow the direct ions.

2014 Nissan Rogue Select

Very easy to install. About 3 hours total. I spent a lot of time routing the wire underneath the vehicle,not hard but wanted to make sure it was away from any heat source. Also spent a lot of time keeping g the wires neat and zipped tied. Need more zip ties than provided, but the kit is easy to install and works great.

2007 Infiniti G35

Hi Carol, all received and installed. There was one issue. On the wire harness, to get all lights working properly, I had to cut and swap the yellow and brown wires at the plug to the trailer. The harness did not match the exact configuration of my car in this respect; 2007 Infiniti G35. I did take it to a U-Haul installer to confirm the harness wires were backwards before cutting and swapping the wires.


Good service and communication with follow ups. The package was delivered promptly.


etrailer is definitely the place to go for trailer accessories! They have a very large inventory of extremely quality products and their customer service reps are second to none. Fast and efficient, i recommend them to all of my friends and acquaintances, if you haven’t dealt with them I strongly encourage you to check out their online store at “”, you will not be disappointed!

2017 Nissan Rogue

The wire kit was easy to install by following the videos.


Very quick prompt service. Correct product shipped. No hassles. Very knowledgeable.


Good and simple instructions


Exactly what I ordered. Fit as promised. Very happy

2017 Nissan Rogue

got it fast didn't know how to put it in but utube has excellent video showing how to do it

by: 04/27/2021


2018 Nissan Rogue


Work as advertised

2016 Nissan Rogue


Ask the Experts about this Hopkins Custom Fit Vehicle Wiring

  • Wiring Harness for 2018 Nissan Rogue and Running a Wire to the Battery
    On your 2018 Nissan Rogue, the Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector item # HM11143645 has a wire that runs to the battery for 2 reasons. The first and main reason is that there is no other source of constant 12v power in the rear of your Nissan. The second is that the powered converter that comes with the wiring harness is designed to reduce strain on your wiring system. This requires it to have a direct power source. If you were to tap into another...
    view full answer...
  • Trailer Hitch Receiver For a 2020 Nissan Rogue That Will Not Interfere With Hands Free Lift Gate
    The etrailer Trailer Hitch Receiver # e98846 should not interfere with the operation of your foot activated lift gate on your 2020 Nissan Rogue. You will need to position your foot very close to the trailer hitch on the rear of your Rogue to get the sensor to detect your foot. I recommend the Hopkins Plug-In Simple Vehicle Wiring Harness # HM11143645 to allow for you to tow with a trailer or to use any auxiliary lights in case your bike rack/cargo carrier block your taillights.
    view full answer...
  • Trailer Hitch, Wiring and Ball Mount Recommendation for 2011 Nissan Rogue
    For towing a trailer with your 2011 Nissan Rogue you'll want a hitch, wiring and a ball mount and you'll be set. The Draw Tite hitch part # 75902 is a confirmed it and would work great. It has a 2 inch opening which is the strongest size available for your vehicle plus it is most concealed aside from the hitch opening. For trailer wiring you'd then want the Hopkins kit part # HM11143645 which is a confirmed fit too. Since you wanted to do some towing you might be interested in etrailer...
    view full answer...
  • Trailer Hitch Receiver, Wiring, and Ball Mount For Towing a U-Haul Trailer With a 2018 Nissan Rogue
    I recommend the etrailer Trailer Hitch Receiver # e98846 for your 2018 Nissan Rogue. This receiver is rated for 525lbs of tongue weight and 3,500lbs of total trailer weight. Be sure to verify your maximum towing capacity with your Nissan dealer. The etrailer Ball Mount Kit # 989900 will provide you will 2 ball mounts and a 2" or 1-7/8" ball. Either ball will fit the U-haul trailer you intend to haul but the ball mounts have different amounts of rise(1"or3") to allow you to best level...
    view full answer...
  • How do I Determine My Hitch Weight Capacity on My 2013 Nissan Rogue?
    It looks like you are looking at our available hitches for your 2013 Nissan Rogue like the Draw-Tite - 2" # 75902 and the Curt - 2" # C13204. With these hitches, you are absolutely correct that the Draw-Tite provides 350 pounds of maximum tongue weight and the Curt provides 525 pounds of maximum tongue weight. When considering hitches, there are a few things to keep in mind. First off, you need to differentiate between tongue weight and gross towing weight. The tongue weight is the weight...
    view full answer...
  • Best Wiring Harness for a 2018 Nissan Rogue
    I would be happy to help you. All three of the wiring harnesses, the Curt item # C56033, Hopkins item # HM11143645, and the Tekonsha item # 118480, fit your 2018 Nissan Rogue. I always recommend the Tekonsha wiring harness because they are built better and are far more reliable. This would be my recommendation to you today. The T-One connector plugs directly into your Nissan's wiring harness behind your rear tail lights. All of the critical components are installed inside your vehicle so...
    view full answer...
  • Trailer Hitch Receiver For a 2016 Nissan Rogue
    The Curt Trailer Hitch Receiver # C13902 is a multi fit hitch that is not designed for one particular vehicle but will fit on several models with some drilling. This particular hitch is for Chevrolet, Ford and Dodge Trucks. I recommend the etrailer Trailer Hitch Receiver # e98846 for your 2016 Nissan Rogue. This hitch is custom fit to bolt to into the factory weld nuts that are on your Rogue. This hitch is rated for 525lbs of tongue weight and 3,500lbs or trailer weight. Be sure to check...
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Cole B
Installed by:
Cole B
Employee Alexander C
Written by:
Alexander C

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