bing tracking image
  1. Custom Fit Vehicle Wiring
  2. Hopkins
  3. Custom Fit
  4. Trailer Hitch Wiring
  5. 4 Flat
  6. Converter
THIS ITEM IS NOT A FIT FOR
2019 Ford F-250 Super Duty

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

Item # HM11143875
Our Price: $51.48
Custom Fit Vehicle Wiring
Not Confirmed to Fit

2019 Ford F-250 Super Duty

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

Shipping Weight: 0.68 lbs
Add to cart
In Stock
Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector 4 Flat HM11143875
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Customer Photos

Need help with installation?
Locate installers near me
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. 1-800-940-8924 to order Hopkins custom fit vehicle wiring part number HM11143875 or order online at etrailer.com. 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 (50)
  • Q & A (0)
  • Videos (1)
  • Photos

Hopkins Custom Fit Vehicle Wiring - HM11143875

  • Custom Fit
  • Trailer Hitch Wiring
  • 4 Flat
  • 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 - 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 behind rear bumper
    • 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 under the rear of the vehicle, on the passenger's side.


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.



11143875 Plug-in Simple Hopkins T-Connector with 4-Pole Trailer Connector

Installation Details HM11143875 Installation instructions

This Product Fits The Following Vehicles



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 - HM11143875 Review

Today we're going to take a look at the Hopkins Plug-In simple vehicle wiring harness with the four way flat trailer connector. Now, this is a custom fit part, it is designed to fit a 2003 to 2006 Subaru Baja, and on a custom fit part I always like to recommend for you to go to our website, use our fit guide, put in your year and model vehicle, and it'll show you if this part will work for your application. Now, this harness will provide this four way flat trailer connector at the back of your vehicle to power your trailers signal lights. It is compatible with five pole, six pole, and seven pole adapters that we do sell separately. To install this, it connects very quickly and easily. There's no cutting or slicing of wires. Basically, just locate your connection point, which on that vehicle is underneath the passenger side rear of the vehicle, near the vehicle vapor canister, and there'll be a six pin connector that'll match this one right here. Plug in your connector, attach your box, here, to a nice flat location using the included zip ties, and then run this out to the back to plug into your trailer. Now, this converter box - this is a taillight converter.

This is on here to ensure that your vehicles wiring will match that of your trailer. They do use protective connection terminals to resist corrosion. Comes with everything shown here. Comes with this nice dust cover for the four way, so when you're not plugged into your trailer it'll protect the terminals from any damage or from the elements. Comes with a couple cable ties to attach your converter down with, and it even comes with a nice terminal grease packet or dielectric grease, and you want to use that whenever you make any connections.

Put some grease on your electrical connections to keep corrosion from forming. That should do it for the review on the Hopkins Plug-In simple vehicle wiring harness with the four way flat trailer connector.

Customer Satisfaction Score:


Customer Reviews

Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - HM11143875

Average Customer Rating:  4.8 out of 5 stars   (50 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.

by:

The part arrived when scheduled. Plugged in new adapter and secured wire with in 15 minutes all while laying on my back. Could have been 4 inches long on trailer plug side to get out from under the bumper.



by:
2005 Subaru Baja

Easy installation. Mounting hardware was not great so I used different stuff I had on hand. Eould prefer if wiring harness was about 1ft longer.



by:

Plug & play. Perfect fit to existing wiring harness and works just fine.



by:

This product worked as advertised. The connection location for my vehicle was identified accurately in the installation instructions and installation only took a few minutes. The interface works and has no effect on the automobile turn signal flashing sequence. Don't even know that you are hooked up to a trailer. I installed it and have rented two different trailers one form Home Depot and one from U Haul and both times the interface was a perfect fit and no degradation of turn signal quality. Extremely satisfied with it. I highly recommend this rather than trying to cut and splice your existing harness.



by:
2003 Subaru Baja

Great! So much better than the butchered-up job that a previous owner did on our other Baja that I am ordering a second harness "kit" for the other Baja. This makes such a nice installation that it is a shame to not use it!

Fritz L.

3/28/2019

We have two Subaru Bajas, and I have installed these wiring kits. There was a problem with one of the kits, but it was replaced. Now both perform well, and I am happy with them. I am still amazed that installation is so easy and neat.



by:
2003 Subaru Baja

Everything arrived ok. Trailer hitch fit my Baja without any major work. Wire harness worked. The bed extender and the platform are a bit wobbly but definitely secure.
Unfortunately no free shipping to Hawaii but it arrived in 5 days (including the weekend) and the packaging was done well as to not over do it. I am glad they were there with the goods so I could get them quickly.



by:
Subaru Baja

Everything was perfect. The part to replace my trailer wiring harness was exactly as the original on my Subaru Baja. Very easy to replace and tested well.



by:
Subaru Baja

I had no right turn blinker on the trailer. This was an exact fit for my Subaru Baja and worked perfectly. Very easy swap to out! Problem solved.



by:
2003 Subaru Baja

Had to splice this into my existing wiring harness as the plug was damaged but it works fine.



by:
2003 Subaru Baja

Product is a perfect fit for my 03 Baja, plug & play as advertised. One small gripe, I wish the wiring was a bit longer on the trailer side, but the fitment is excellent overall. Thanks!



by:

Unit installed easily. I am not quite satisfied with where the outlet plug ended up, but will review this as time goes on. [Not an inherent problem of the unit, just how it ended up with length and options for install].



by:

We have ordered several products form etrailer and have always had a great experience. If I need any other product I will order form etrailer. I highly recommend them



by:

We have ordered several products form etrailer and have always had a great experience. If I need any other product I will order form etrailer. I highly recommend them



by:

Plug and play very easy install.



by:
2005 Subaru Baja

The hitch fit my Baja perfectly and the online installation video was a great help



by:
2006 Subaru Baja

Product was correct fit. Location information on my car for plug to connect was correct.
Thanks



by:

After 1 year in Wisconsin Salt, it still works as it should.



by:

Great customer service nice product.

Second
time purchasing from etrailer. Free shipping and decent prices. Thanks.



by:

your replacement was so easy to install and quick i had it done in less than 5 minutes thank you i highly recommend you and your products to other people .



by:

Customer service like no-other! Thanks Roger R.!!!!! Will recommend to everyone looking for trailer components.
Thanks



by:

Item shipped fast and is a great quality kit.

Instructions were detailed and very easy to follow. Great purchase!



by:
2003 Subaru Baja

excellent harness



by:
2006 Subaru Baja

Easy installation!



by:

Good service. Quik delivery. Thanks for fixing the mixup ob shipping.



by:
2003 Subaru Baja

Part worked perfect and arrived 2 days earlier than expected!!!


25
50
Show More Reviews

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

  • Easy to Install Trailer Wiring for 2006 Subaru Baja
    For trailer wiring that fits your 2006 Subaru Baja that plugs into the port you have all you'd need is the part # HM11143875.
    view full answer...
  • Trailer Wiring Replacement Solution for 2003 Subaru Baja
    Sounds like the converter box of the trailer wiring kit you have installed on your 2003 Subaru Baja has developed an internal short and needs to be replaced. For that you'd want the part # HM11143875.
    view full answer...
  • How Much Can a 2005 Subaru Baja Tow
    The towing capacity of 2005 Subaru Baja is listed as 1,000 lbs for trailers without brakes or 2,400 lbs for trailers with brakes. In order to tow a trailer you will need a trailer hitch like the Curt Trailer Hitch Receiver part # C11280, a trailer wiring harness like the Hopkins Plug-In Simple Vehicle Wiring Harness part # HM11143875, and a ball mount/hitch ball like the Draw-Tite Drawbar part # 3590 with the 2" Hitch Ball part # 19258 and Pin and Clip part # PC2. Since the # C11280 hitch...
    view full answer...
  • Where Is The Connector Used To Install Hopkins Trailer Hitch Wiring Harness On 2003 Subaru Baja
    To install a custom vehicle wiring harness like the Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # HM11143875 onto your 2003 Subaru Baja you will need to located the 6 pin connector that is located underneath the passenger side rear of the vehicle, near the vehicle vapor canister. A few reviews did mention that there is a cap on the connector on the vehicle that will need to be removed prior to installing the wiring harness connector. I attached the...
    view full answer...
  • Vehicle Wiring Harness Trailer Connector Converter Issue on my 2004 Subaru Baja
    I hate to say it but the Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # HM11143875 does not have a serviceable converter. I would check your owner's manual first to ensure that you did not simply blow a fuse on your 2004 Subaru Baja. Since this converter is powered by the vehicle it is very likely this is the issue. Look for a Trailer Tow or Trailer Power fuse. These can also sometimes be TRLR as well. Fuses can be hard to pull and see if they...
    view full answer...

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


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Alexander C
Written by:
Alexander C

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.


Product Experts Available Now!
Call 1-800-940-8924