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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 # HM11140495
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Custom Fit Vehicle Wiring

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Hopkins Custom Fit Vehicle Wiring - HM11140495
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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 HM11140495 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 (21)
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Hopkins Custom Fit Vehicle Wiring - HM11140495

  • 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 - no cutting or splicing
    • Run hot lead to car battery
  • Includes a powered tail light converter that connects directly to your battery to avoid overloading your 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: 8 amps per circuit
    • Tail lights: 8 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.

40495 Plug-in Simple Hopkins T-Connector with 4-Pole Trailer Connector

Replaces 11140495

Installation Details HM11140495 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 - HM11140495

Average Customer Rating:  4.9 out of 5 stars   (21 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.


I highly recommend this product if installing a hitch. It lessens the chance of overloading your vehicles electrical system and for LED lights on trailer. I did however get wire look to run hot wire to front of vehicle to the battery. Also get a small tube dielectric grease for all connections. Heat shrink tube or tape all connections all so. This helps to not have any problems in the future.


Fairly easy straightforward installation. Works great.

2013 Ford Van

quick and easy. finding the route out of the sheet metal was the hardest part, but found one pretty quick! it turns out that my 2013 Ford E350 had a set of 4 wire already routed to the rear wnd just before the spare tire to a blank end that I could have used. Bu needed the extra power line on my setup anyway.


The website had plenty of information to be sure you would have everything you need for a seamless installation. The ordering process was easy and the customer service staff was attentive and extremely helpful. A breath of fresh air for an internet based operation. I will use them for all my future trailer and logistic equipment needs


So far so good on the trailer wiring kit. Took some effort to troubleshoot a faulty ground and/or power wire from existing system. Reran all wires for the new unit and works as it should. Satisfied customer. Cheers
*Note: Kits was installed on a 2011 Ford Escape


Took a little time to hook up ,but it works great. The instructions were excellent.I will let the local ford dealer know about your company as the supplier that they use has no listing for this hookup. Thanks again.


FAST SHIPPING! Great prices. My company regularly purchases from etrailer. No need to shop elsewhere.


Excellent service from eTrailer! The wiring kit arrived on the date promised and Julie H was very helpful on the phone ensuring the wiring kit was the correct one for my vehicle.

The kit is as described on the web site. Have not installed it yet although I'm confident it will work as indicated. Noticed the kit has a higher amp rating per circuit than other brands, a good thing all the way around!


2005 E350 Ford Van. Works Great. Nice system as had problems in past with lights operating off OE circuit. This was just what the Truck Doctor ordered.

Ford Edge

Fast shipping! Haven’t installed yet. But installed the same thing on the last Ford Edge and was very happy with the product.


Works great. A better way to have towing light that are bright without stressing my system. Thank you


Works great!




The video on installation was very help ful.

Ford Focus

Installed this on a ford focus hatchback zx3. No easy way to route the wiring. However it does function correctly.

2008 Ford Van

Kit made wiring my E350 a breeze.


Perfect fit and arrived quickly

2011 Ford Escape

Very easy to install and works great

2007 Ford Edge

Perfect delivery! I will hook it up tom orrow.




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

  • Installation of the Hopkins Wiring Harness # 11140495 with Second Red Wire Capped
    The Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # HM11140495 does not use that second red wire. I reached out to the manufacturer and the converter box is used on many models, so for your system the brake and turn signal are already combined so that red wire is not utilized and has a heat shrink cap on it. Other vehicles that have a separate turn from brake light would use that red wire for the brake light input.
    view full answer...
  • Will the Hopkins Plug-In Simple Vehicle Wiring Harness Fit a 2006 Ford Focus ZXW SES
    Yes, the Hopkins Plug-In Simple Vehicle Wiring Harness part # HM11140495 is a fit for a 2006 Ford Focus ZXW SES. The Hopkins Plug-In Simple Vehicle Wiring Harness installs by plugging in behind the tail lights and then you must run a power wire to the battery but that is about it. There is no splicing involved with the Hopkins Plug-In Simple Vehicle Wiring Harness and since it's powered you don't have to worry about damaging the vehicle's circuits. This is also the only plug-in-play option...
    view full answer...
  • Aftermarket Vehicle Harness Only Running Lights Work On 2011 Ford Escape
    It sounds like you have done all the testing that you can do. You have proven that you have power going to the converter from the battery and power coming from the taillights into the converter. With having power going into all the correct circuits and only the running lights coming out on the 4-way it has to be a bad converter. It is an electrical component and may have become overheated or damaged internally for a number of reasons. I recommend replacing the entire T-One Vehicle Wiring...
    view full answer...
  • Would Short in Trailer Wiring Damage Vehicle Wiring in 2010 Ford Focus
    Since the Curt trailer wiring harness part # 56014 that fits your 2010 Ford Focus draws power from the vehicle taillights for the trailer wiring it would potentially pop a vehicle taillight fuse in the event of a trailer wiring short. We do have a kit that also fits your vehicle that has circuit protection with the Hopkins part # HM11140495 which wouldn't damage your vehicle wiring in the event of a trailer wiring short.
    view full answer...
  • Trailer Wiring Harness for 2013 Chevy Camaro without Ground Effects Package
    I checked with Curt and they do show 56253 as a fit for the 2013 Chevy Camaro without ground effects. But based on your description the tail light connectors on the vehicle sound more like the ones for Tekonsha harness # 118556 or Hopkins harness # HM11140495 which are also for the 2013 Camaro.
    view full answer...
  • Custom Fit Trailer Wiring Harness for 2007 Ford Focus Hatchback
    We do have a custom trailer wiring harness that is a fit for your 2007 Ford Focus Hatchback. For that you would want the Hopkins kit part # HM11140495 which is a confirmed fit. The # 118457 only fits the coupes and the sedans though. The taillights are different between the hatchbacks and the sedans/coupes.
    view full answer...
  • Recommended Trailer Hitch for 2004 Ford E-350 With Cutaway Chassis
    From your photo, it looks like you have a Ford E-350 with a cutaway chassis, and there is a heavy-duty hitch that can be bolted on, though you will need to be sure that the bolt holes where the hitch fits are exactly 38-5/8 inches from frame to frame. I recommend the Draw-Tite Ultra Frame # 41945 which is Class V rated and has a maximum gross trailer weight capacity of 10,000 lbs and maximum tongue weight capacity of 1,500 lbs; this is the highest-rated hitch available for your vehicle....
    view full answer...
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  • 4-Pole Wiring Harness for 2007 Ford E-450 Shuttle Van Without Factory Tow Package
    For 4-pole trailer wiring for your 2007 Ford E450 van without the factory tow package you can use Curt custom-fit passive harness # C56020 or the Hopkins custom harness # HM11140495 which has a powered converter. Both are shown on the linked page. The differences between the two are that the Hopkins kit requires an additional wiring step for installation and that it offers a much higher 8-amp output current rating. This harness will also protect the van's internal wiring from any shorts...
    view full answer...
  • Parts Needed to Install Brake Controller in 2007 Ford E-350 without Trailer Wiring
    You will need to start with a 4-way (if you do not have one). For that you would want the # HM11140495. From there you would need to convert the 4-way to a 7-way so that you can install the brake controller. For that you will want the Brake Controller Install Kit and 7-Way Adapter part # ETBC7. I attached installation instructions and an install video for this product as well. For a brake controller I would recommend the Prodigy P2 Brake Controller part # 90885. This is our best selling...
    view full answer...
  • Recommended Trailer Hitch And Wiring For 2007 Ford E-150
    First, the trailer hitch I recommend for your 2007 E-150 is the Draw-Tite Ultra Frame Trailer Hitch, part # 41945. This is a Class V hitch and it has a 2-inch receiver opening. The trailer wiring I recommend is the Hopkins Plug-In Wiring # HM11140495. This just plugs into the connection points located behind the tail lights, and then you run the hot lead wire to the positive battery. The # HM11140495 is a 4-way trailer connector so if you need a 7-way trailer connector you will need...
    view full answer...
  • Recommended Class V Trailer Hitch Receiver, Wiring Harness and Brake Controller 2006 Ford E-350 Van
    I recommend the Draw-Tite Ultra Frame Trailer Hitch Receiver # 41945 for your 2006 Ford E-350 Van. This is a class V receiver with 2" receiver opening. For the wiring I recommend the Hopkins Plug-In Simple Vehicle Wiring Harness # HM11140495 as it uses a powered converter. This will give you a 4-way flat that controls the lights for the trailer. You will connect this to the Universal Installation Kit for Trailer Brake Controller # ETBC7. With this you will be able to install a Tekonsha...
    view full answer...
  • How to Carry a 222 Pound Motorcycle with a 2006 Ford Focus
    Yes, carrying your motorcycle on a hitch mounted carrier on your 2006 Ford Focus is definitely going to be a problem. You've already come to the answer, the hitch has a maximum tongue weight of 200 pounds and your motorcycle is more than that. Plus you need to factor in the weight of the motorcycle carrier as well. In addition to that, the hitch may be rated for 200 pounds but according to an online copy of the Focus' owner's manual its maximum tongue weight is even less than that. The...
    view full answer...
  • What Is the Difference Between the Curt Hitch and the Draw-Tite Hitch on a 2010 Ford Edge
    Both the Curt Hitch # C13067 and the Draw-Tite Hitch # 75992 are custom fit hitches that are designed to be mounted on to your 2010 Ford Edge. Both hitches are Class III rated and have the 2 inch opening at the hitch. Both the Curt and Draw-Tite Hitches have a gross trailer weight rating of 4,000 lbs and a maximum tongue weight of 400 lbs. Both the Curt and Draw-Tite Hitch have limited life lifetime warranties. Of these two, I recommend the Draw-Tite hitch over the Curt for two reasons....
    view full answer...
  • Trailer Hitch Receiver for Utility Truck on 2015 Ford E-450 Cab and Chassis
    For your 2015 Ford E-450 cutaway you will need a frame mount hitch like the Draw-Tite Trailer Hitch Receiver # 41990-16 or # 41990-07. The difference being the # 41990-07 has a bracket height of 7 inches and the # 41990-16 is 16 inches.. Both hitches are 44 inches wide and have a maximum gross trailer weight of 16,000 pounds. For trailer wiring you can use the Hopkins Wiring Harness # HM11140495. This will provide you a 4-way connector. If you need a 7-way you can then add the # ETBC7.
    view full answer...
  • What Wiring and Brake Controller do You Recommend for My 2006 Ford Van E250?
    Before installing a brake controller to your 2006 Ford Van, you need to have a 4-way and a 7-way wiring harness installed. First, you need to install the 4-way. If you need a 4-way harness, I recommend the Hopkins Plug-In Simple Wiring Harness - 4-Way # HM11140495. Once the 4-way is installed, you are ready for the 7-way. If you need this harness, I recommend the Universal Installation Kit for Trailer Brake Controllers # ETBC7. With the # ETBC7, you will be able to splice in the harness...
    view full answer...
  • Parts Needed to Add 7 Way Trailer Plug and Brake Controller to 2013 Ford E-350
    Since you don't have any existing wiring on your 2013 E-350 you'll need to start by adding a 4 way, which I recommend using the Hopkins Plug In Simple # HM11140495. This will provide you with the base wiring needed to then add a 7 way connector. Once you've installed this, you'll need to add the # ETBC7, which will provide you with the additional components needed to add the 7 way that will be required for a trailer with brakes. Once you've installed the # ETBC7 you'll need a brake controller....
    view full answer...
  • Installing 7-Way Trailer Connector on 2005 Ford Van
    If your van has the factory 4 pin connector, the install will be pretty simple. You'll just need a # 37185 4 pole to 7-way adapter. Plug it in to your 4 pole. If your trailer does not have brakes, simply ground the white wire and you're done. If the trailer does have brakes, you'll want to install a brake controller following the procedures in the help article I've linked for you. The Tekonsha Primus, part # TK90160 is a good, reasonably priced brake controller. You'd also need the # 3035-P...
    view full answer...
  • Recommended Brake Controller and Tow Dolly for 2019 Coachmen Freelander 27QB
    For your 2019 Coachmen Freelander 27QB built on a Ford E-350 chassis I highly recommend the Tekonsha Prodigy P3 Brake Controller # 90195. The P3 is the best option for your motorhome because it gives you the most consistently smooth braking, has a bright LCD screen that is easy to read, and has continual diagnostic checks with safeguards to prevent battery drain or shorts. This is a very high-performing and reliable controller that has been reviewed thousands of times by our customers...
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Hannah L
Updated by:
Hannah L
Employee Alexander C
Written by:
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