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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 # HM11143865

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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 Converter HM11143865
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  • Custom Fit
  • Trailer Hitch Wiring
  • Hopkins
  • 4 Flat
  • Converter
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring - no cutting or splicing required. Call 800-298-8924 to order Hopkins custom fit vehicle wiring part number HM11143865 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 (46)
  • Q & A (10)
  • Videos (8)
  • Photos
  • Why etrailer?

Hopkins Custom Fit Vehicle Wiring - HM11143865

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


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
    • Locate connection point in rear cargo area
    • Plug in connector
  • Includes a tail light converter to ensure that your vehicle's wiring matches that of your trailer
  • 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


Installation

This custom-fit T-connector plugs into your vehicle's wiring harness, which is located in your rear cargo area, either behind the driver's-side trim panel or in the spare tire compartment.


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.


Tail Light Converter

A tail light converter is built into this T-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 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.



11143865 Plug-in Simple Hopkins T-Connector with 4-Pole Trailer Connector



HM11143865 Installation InstructionsInstallation Details HM11143865 Installation instructions

This Product Fits The Following Vehicles

2018 - 2019 Subaru Crosstrek

2014 - 2019 Subaru Forester

2009 - 2019 Subaru Forester

2013 - 2019 Subaru Outback Wagon

2013 - 2014 Subaru Outback Wagon

2013 - 2013 Subaru XV Crosstrek

2013 - 2013 Subaru XV Crosstrek

2010 - 2012 Subaru Outback Wagon excluding Sport

2010 - 2012 Subaru Outback Wagon excluding Sport

2016 - 2017 Subaru Crosstrek non-Hybrid models

2016 - 2017 Subaru Crosstrek non-Hybrid models

2014 - 2015 Subaru XV Crosstrek non-Hybrid models

2014 - 2015 Subaru XV Crosstrek non-Hybrid models



California residents: click here


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


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Hopkins Custom Fit Vehicle Wiring - Trailer Hitch Wiring - HM11143865 Review

Today we're going to be taking a look at the Hopkins plug-in simple vehicle wiring harness with the four-pull flat trailer connector. This product fits certain years and models of the Subaru Outback wagon, Subaru Forester, Subaru WRX, Subaru Crosstrek and XV Crosstrek and Subaru Impreza. You can use the vehicle fit guide located at etrailer.com to see if this is a fit for your vehicle. It's going to provide a four-way flat connector at the back of your vehicle to power train the signal lights. This is compatible with five-pole, six-pole, and seven-pole adapters. Adapters are sold separately, and it's going to come with a dust cap for the four-way flat connector. That way you can cover up the connection points when your plug's not being used. It's also going to include a tail-light converter that's going to ensure that your vehicle's wiring matches that of your trailers.

Power module is designed to connect directly to the vehicle battery through the wiring, which is going to avoid overloading the vehicle's electrical system. Now, the unit's also designed to connect quickly and easily. All you have to do is locate the connection point in the rear cargo area according to the included instructions, and plug in your single connection point. This plug is going to match up perfectly with the port on the vehicle. They're going to interlock or snap-lock together for a nice, tight, secure fit. Once you get that connected, you'll need to mount the converter box.

It's got some areas right here for mounting on each side. You can do that with the included cable ties provided with the kit. Really, that's all there is to it. Once your installation is complete, the four-way connectors are going to be stowed near the hitch of the vehicle. We do recommend using a mounting bracket to keep the connectors secure and easily accessible. Mounting brackets are going to be sold separately.

If you're interested or in need of one, you can find mounting brackets here at etrailer.com. I do want to point out that on this harness, it does have a grommet, so as this exits the vehicle, that grommet is going to help create a nice, tight seal around the exit area, which is a great advantage to have. The grommet is included, already installed on the wiring. It's also recommended that you use a small amount of terminal grease on all of your electrical connections, like the plugs on the vehicle and the four-pole connector itself. The grease is going to help prevent corrosion and it is included with the kit. That's going to do it for today's look at the Hopkins plug-in simple vehicle wiring harness with the four-pull flat trailer connector.


Customer Reviews

Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - HM11143865

Average Customer Rating:  4.9 out of 5 stars   (46 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 - no cutting or splicing required.

- HM11143865
by:
2015 Subaru Forester

The DYI videos provided by etrailer.com helped me to decide on doing this project myself. While the hitch for my 2011 Subaru Forester looked easy enough to install, the thought of how to wire it correctly seemed a challenge. That is, until I watched the video for my EXACT vehicle! It was literally as easy as watching the video on my phone while I did the install myself. Everything was EXACTLY the way the video described. I was able to complete the install in less than 15 minutes from start to finish. Thanks etrailer.com for the assist! 419848



- HM11143865
by:

I ordered the wrong ball for the draw bar I ordered and etrailer caught it before shipping. After a quick e-mail the correct ball was shipped. Outstanding! 476232



- HM11143865
by:
2017 Subaru XV Crosstrek

I used this wire harness along with the knockout plug adaptor part number 47605 on my 2017 crosstrek. It is very easy to use both on my crosstrek to make a clean look. 473696



- HM11143865
by:
2016 Subaru XV Crosstrek

Wire harness for our 2016 Subaru Crosstrek worked out just as simple and nice as all information said it would. Took approximately 45 minutes to install. Plugged in and installed as if it was installed at the factory. 433436



- HM11143865
by:
2011 Subaru Forester

I have a 2011 Subaru Forester. I asked that trailer rental place to install a hitch and trailer wiring. Took them about 3 hours to complete. I finally got around to attaching the trailer to the Forester only to find out that the way they wired it was wrong. I went online - came across this page and searched to see if there was a trailer wiring harness specific to my vehicle and if there was - how easy was it. etrailer's How-to video was dead on in helping me to find the factory trailer wiring hook up (didn’t have to pull the left rear inside panel away as the plug was laying just underneath the foam tire changing tools tray). I had the new harness I got in from etrailer today installed in about 10-15 minutes (maybe less). I plugged in my 4 Pin Flat -> 7 Pin Flat converter that I made myself, plugged in my trailer and my trailer lights came to life. I ripped the trailer rental place's trailer wiring out (seeing that they spliced directly into the tail light assembly) and tossed it. 476492



- HM11143865
by:
2014 Subaru Outback Wagon

This was the easiest hookup ever. Subaru plug pulled relatively easy. Make sure you mount the electrical interface box low enough in the wheel well that it doesn't impede proper placement of the foam insert storage tray. I didn't really need this now but likely will in the future. Costs a little more but install and through wheel well to hitch frame makes it the perfect choice and fit for my 2014 Subaru Outback. 430288


Comments

Pretty much the same comment applies a year later. Easy install, all good. Only thing is my 4 pin connector cover snapped off somehow and I need to replace it.

TonyT - 09/11/2018

43478

- HM11143865
by:
2018 Subaru Crosstrek

2018 Subaru Crosstrek The DYI videos provided by etrailer.com provided a quick and easy how-to. It was literally as easy as watching the video on my computer and going out and installing it in 30 minutes. I also installed Mounting Bracket 4-Pole Flat, Item # 18144 and No-Drill Mount Bracket, Short, Item # 18140 and it looks great. 538859



- HM11143865
by:
2018 Subaru Forester

Friends: When I installed the trailer hitch I did not cut a section out of the heat shield above the muffler. Instead I drilled 5/8” holes where the bolts go through. The shield is already prepunched where it is to be drilled. I used butyl tape around the bolts to seal them and hold the bolts. For the wiring harness, I simply used Velcro to hold the unit to the inside of the spare tire well rather than tape. 492959



- HM11143865
by:
2018 Subaru Crosstrek

Worked as advertised. Loved the ease of installation. On line videos much better than written instructions with package. Wish it came with a better mount on the trailer connection (just loops the cover through the safety chain loops), but that is only a cosmetic and subjective issue. I can always buy a separate mount if I want. 543708


Comments

If you would like to mount the 4-way flat to the hitch I recommend bracket part # HM48595
Hopkins Fold-Over Mounting Bracket for 4-Way Flat Trailer Connector
$3.95
that comes with self tapping screws to attach directly to the bottom of the bumper.

-- Heather A - 07/21/2018

41262

- HM11143865
by:
2015 Subaru XV Crosstrek

I am only giving this 4 stars because of two issues. We are prepared for these issues when doing installs someone doing their first one may struggle with. The wiring connector plug in on the car did not require near as much interior removal as stated in the instructions ( It can be found without any thing other than the foam spare tire block pulled, and The hole in the body is actuall quite a bit smaller than the rubber seal provided where it exits the body and the hole in the body is to small to fit the four wire connector end to fit through without some modifications. This is not a big deal the harness was the perfect length and is a plug and play harness for the Subaru Crosstrek I would not hesitate to order this part again. 376812



- HM11143865
by:

Installed on a 2018 Subaru crosstrek. Easy installation and very discreet when not in use. 641551



- HM11143865
by:

The hitch is very well built. The instructions and video were easy to follow. The hitch was easy to install, albeit a helper should assist as this is a heavy duty hitch. 625441



- HM11143865
by:

Made life easy Plug & Play 614737



- HM11143865
by:

Good product went on easily made for a nice instillation. 613880



- HM11143865
by:

Easy installation and works just fine 611908



- HM11143865
by:

I couldn't be more satisfied with my purchase. The hitch arrived promptly and in good condition. It fit my 2019 Forester perfectly and went on exactly as shown in the instructional video. It's way overbuilt for my uses (not a bad thing), a small utility trailer and a bicycle rack. As an additional item the wiring harness went in perfectly. 611112



- HM11143865
by:
2014 Subaru XV Crosstrek

Very easy to install !!! 607397



- HM11143865
by:

Quick easy install. One click and it was connected to the factory plug. No issues at all. Fast, accurate order. Will definitely order from etrailer again. 606486



- HM11143865
by:

All components received in good form and functioned as intended. From past experience E-trailer will always promptly make good on any defective product. 605824



- HM11143865
by:

Delivered in good shape. Clear instructions made installation easy. Had it on in under 2 hours. Would i order from this company again. Absolutely! 605240



- HM11143865
by:
2019 Subaru Crosstrek

Hi, the car I ordered parts for was a 2019 Subaru. Crosstrec. The wiring harness I received was for a Subaru Forester. It fit fine but the instructions were wrong and didn't apply to my car. I had to find a utube Video to complete the installation 600168



- HM11143865
by:

Works flawlessly 600041



- HM11143865
by:

Easy to install and works every time I plug the trailer lights in. Excellent! 594087



- HM11143865
by:

Exact fit. 591327



- HM11143865
by:
2018 Subaru Forester

Excellent fit and well made. 584997



- HM11143865
by:

Installation was quite easy. Everything fit and snapped together. Instructions were clear. Still working fine after a year. 578911



- HM11143865
by:

Awesome product that works as described and very easy to install. This is my second purchase of this wiring harness and would recommend it to any one looking for one. 577039



- HM11143865
by:
2014 Subaru Outback Wagon

Great bunch of guys very helpful 557267



- HM11143865
by:
2017 Subaru Crosstrek

went together quickly,great product good video 556453



- HM11143865
by:

Super simple install. Just like the demo video. Paid $300 to have a trailer hitch installed. Saved $150 installing the wiring harness myself. Thanks Etrailer! 552802



- HM11143865
by:
2013 Subaru Outback Wagon

Just got my wiring harness yesterday in the mail. My nephew will be installing it for me on Tuesday. The same product exactly that a hitch shop was going to install and sell to me for almost 3x as much. 528607



- HM11143865
by:
2017 Subaru Forester

Helpful video made installation a breeze, thank you 519741



- HM11143865
by:
2018 Subaru Forester

Instructions were not clear on the location of the vehicle plug. Added a few minutes searching. Other wise excellent. 518388


Comments

Subaru is well known for varying the location of the connector for the trailer wiring. It can even vary from vehicle to vehicle of the same model year.

-- Mike L - 06/07/2018

39407

- HM11143865
by:
2018 Subaru XV Crosstrek

The Hopkins Wiring Harness was delivered promptly and the installation went well. I installed the wiring harness as shown on your installation video but got concerned about routing the wires over the muffler heat shield. I rerouted the wires through the passenger side of the rear lower hatch area. The Subaru Crosstrek has a hole with a plastic plug in this location but the hole had to be enlarged with a round file to fit the rubber plug on the wiring harness. The wire rerouting is much better away from the hot muffler area, excellent product. 517274



- HM11143865
by:
2018 Subaru Crosstrek

This product is excellent. Easy to install , could not believe how easy. Thank you for a quality product for owners to add trailer lighting. 501022


Comments

Easy to install, continues to work very well. Best wiring kit I have ever installed and used

Steven - 05/02/2019

54795

- HM11143865
by:
2012 Subaru Outback Wagon

Very easy to install,it took me about 2 hours from start to finish to complete. Looks like it will work great. 494496



- HM11143865
by:
2018 Subaru Forester

Excellent fit and easy installation 491393



- HM11143865
by:
2012 Subaru Outback Wagon

Shipped fast. Super easy install. Works every time. Reasonably priced--absolutely worth it to spend a couple bucks more (vs. competitors) to have everything you need in one kit with no splicing. Would recommend to anyone. They do a one year follow up satisfaction survey! How's that for customer service! 490311



- HM11143865
by:
2018 Subaru Crosstrek

Sooo easy to install. :) 481476



- HM11143865
by:

Excellent unpacked awaiting weather to clear for install. 479182



- HM11143865
by:

perfect fit product as described fast shipping thanks 447236



- HM11143865
by:
2013 Subaru Outback Wagon

This harness installed easily and works perfectly. The added plug fits perfectly into the already drilled hole at the bottom of the spare tire well replacing the existing plug. A perfect fit for my 2013 Subaru Outback. A great product. 426996



- HM11143865
by:

This product did the job and was even easier to install than the video which led me to the product. I was a little nervous during installation as there was no grounding wire to screw into the framework of my vehicle, but the package came with a self-tapping screw. This was a little misleading as in the video, the product was slightly different. As it turned out, the grounding wire was incorporated into the plug kit and did not require the self-tapping screw to secure the ground wire. Perhaps an update on the video could lead to less confusion on this point. Besides that minor complaint, the email/shipping/purchasing process could not have been easier. EXCELLENT seller! 421264



- HM11143865
by:
2011 Subaru Outback Wagon

I have a 2011 subaru outback and this is a great easy 30 minutes installed nothing to modify just plug it and you done with it . 406646



- HM11143865
by:
2016 Subaru XV Crosstrek

I was very impressed with the quick response and shipping of the wire harness. I followed the written instruction that came with the wire harness, but I was not able to find the connection behind the seat. I was installing the wire harness on a Subaru 2016 Crosstrek and packaging only went up to 2015. I went to etrailer's.com website and found a video that showed every step and the location of the connector. The whole process was less than an hour and very easy to install. 390981



- HM11143865
by:

GREAT service. Great products. BEST deal in towm! 366721


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Ask the Experts about this Hopkins Custom Fit Vehicle Wiring
Do you have a question about this Custom Fit Vehicle Wiring?


  • Trailer Hitch and Wiring for a 2019 Subaru Forester
  • We do have a hitch for your 2019 Subaru Forester, part # 76271 from Draw-Tite. The hitch is rated to tow up to 3,500 pounds but from my research your Forester is rated up to 1,500 pounds as long as the trailer has brakes. If it doesn't have brakes then you're limited to 1,000 pounds. Always make sure you stay within the limitations of the vehicle. To tow a trailer you also need a wiring harness. I recommend the Hopkins, part # HM11143865, because it's the easiest to insall and has...
    view full answer...

  • Trailer Hitches for 2018 Subaru Forester
  • There are quite a few and it can be rather confusing. For starters I recommend getting a Class III trailer hitch on your 2018 Subaru Forester. A Class III hitch has a higher weight capacity and is the larger 2 inch receiver. There are more accessory options, like bike racks and cargo carriers, that fit the 2 inch as opposed to the smaller 1-1/4 inch size. Of the Class III hitches for you there are basically two designs; a visible cross tube with the reciever coming directly from...
    view full answer...

  • Does the Hopkins Fold-Over Mounting Bracket # HM48595 Fit Trailer Wiring of 2018 Subaru Crosstrek
  • The Hopkins Fold-Over Mounting Bracket # HM48595 that you referenced can't work with Curt harnesses like the part # C56040 or the T-One kit part # 118467 as it's a bit too small. You'd have to use the Hopkins wiring harness part # HM11143865 or use the bracket # 18144 with the Curt or Tow Ready.
    view full answer...

  • Best Looking Trailer Hitch for a 2018 Subaru Crosstrek
  • The best looking trailer hitch that fits your 2018 Subaru Crosstrek is the EcoHitch, part # 306-X7365. The cross tube is concealed behind the rear bumper and the receiver tube is visible underneath. Additionally, the receiver tube can be removed when you're not using it so nothing is visible at all. With that being said this might be a little fancier than what you're looking for. And by "fancier" I mean expensive. The next best looking option is the Curt, part # C13382. It still...
    view full answer...

  • Does Hopkins Trailer Wiring Harness HM11143865 Fit 2018 Subaru Crosstrek
  • For your 2018 Subaru Crosstrek the Hopkins trailer wiring harness part # HM11143865 that you referenced is a confirmed fit and would work well. It's a custom install wiring harness that would not require you to modify your vehicle in any way. Your Crosstrek will have the same port for installing this like what is seen in the install video I attached.
    view full answer...

  • How To Install A 7-Way Wiring Harness On A 2015 Subaru XV Crosstrek
  • In order to install a 7-way wiring harness on your 2015 Subaru XV Crosstrek you will first need to install a 4-flat wiring harness. I recommend the Hopkins Plug-In Simple Vehicle Wiring Harness part # HM11143865 as it is a direct fit, plug-and-play option for you vehicle eliminating the need to hardwire. To install the 7-way trailer wiring harness on your Subaru you will need to convert the prior 4-way into a 7-way. To do this you will want the Universal Installation Kit for Trailer...
    view full answer...

  • Recommended Suspension for 5x8 Northern Tool Trailer
  • The best suspension to add is going to be an axle-less system from Timbren. These are universal fits and I highly recommend checking out the Timbren Axle-Less Trailer Suspension System w Electric Brake Hubs # A35RS545E. This will give you a full suspension with electric brakes. In terms of a brake controller for your 2012 Subaru Outback you first need the appropriate wiring: 4-way # HM11143865 and Universal Installation Kit for Trailer Brake Controller # ETBC7, which will give you a...
    view full answer...

  • 2013 Subaru WRX Impreza Trailer Wiring Harness Recommendation
  • Since your 2013 Impreza is a WRX wagon the trailer wiring you would need is a hardwire kit and not the custom install kit part # HM11143865 that you referenced. The # 119250KIT is the way to go. Instead of hardwiring to taillight circuits it uses sensors that clamp around them instead so you don't have to make any permanent modifications.
    view full answer...

  • Installing 4-Way Trailer Wiring Harness In 2013 WRX Hatchback
  • The vehicle body harness you need to plug into is located under the left (driver's side) sidewall. If you can't get easy access to it, I recommend removing the panel to gain easy access and then reinstalling the panel once connected. The connector may not be as loose as you expect, but it is there. I've attached the installation details for you. Unfortunately I don't have a video of the installation to attach for you.
    view full answer...

  • Comparing Curt, T-One, and Hopkins Trailer Wiring Kits for 2018 Subaru Forester
  • We have three trailer wiring options for your 2018 Subaru Forester. We have the Curt option # C56040, the T-One option (my favorite) # 118467, and the Hopkins # HM11143865. The reason I favor and recommend the T-One kit part # 118467 is because the converter boxes on the T-One kits have been proven to us as being the most reliable. Trailer wiring shorts will easily damage the converter boxes of these kits which renders them totally inoperable but we have found that the T-One converter...
    view full answer...


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




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Info for this part was:

Video by:
Andrew K
Edited by:
Lindsey S
Expert Research:
Jameson C
Video by:
Joshua S
Video Edited:
Jacob T
Video by:
Kathleen M
Video Edited:
Dustin K
Installed by:
Cole B
Test Fit:
Randy B
Video Edited:
Chris R
Written by:
Alexander C
Photos by:
Stacy F
Test Fit:
Brent H
Test Fit:
Shane H
Video by:
Jonathan Y
Test Fit:
Robert C
Video by:
Michael B

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