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Hopkins Plug-In Simple Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Hopkins Plug-In Simple Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Item # HM11140735
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Custom Fit Vehicle Wiring

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HM11140735 - Custom Fit Hopkins Trailer Hitch 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 OEM tow package wiring harness - no cutting or splicing required. Call 800-298-8924 to order Hopkins custom fit vehicle wiring part number HM11140735 or order online at etrailer.com. Free expert support on all Hopkins products. Guaranteed Lowest Price and Fastest Shipping for Hopkins Plug-In Simple Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
  • All Info
  • Reviews (2)
  • Q & A (11)
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  • Why etrailer?

Hopkins Custom Fit Vehicle Wiring - HM11140735

  • Custom Fit
  • Trailer Hitch Wiring
  • Hopkins
  • 4 Flat
  • No Converter

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


  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Designed for use with a factory tow package
    • 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
  • 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 factory tow package wiring harness, which is located behind the rear bumper, near your spare tire on the driver'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.

11140735 Plug-in Simple Hopkins T-Connector with 4-Pole Trailer Connector

Installation Details HM11140735 Installation instructions

This Product Fits The Following Vehicles

California residents: click here

Customer Reviews

Hopkins Plug-In Simple Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector - HM11140735

Average Customer Rating:  5.0 out of 5 stars   (2 Customer Reviews)

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

- HM11140735
2011 Ford F-150

Easy to install and it fit perfect 851941

- HM11140735
2009 Ford F-150

Fit perfect! 489386


Ask the Experts about this Hopkins Custom Fit Vehicle Wiring

  • How to Install a 7-Way Trailer Connector on a 2017 Ford F-150
    In order to install a 7-way trailer connector on your 2017 Ford F-150, you are first going to need to install a 4-way trailer connector and then a 4 to 7-way trailer connector. For this, I recommend using the Hopkins Plug-In Simple Wiring Harness part # HM11140735 and the Hopkins Adapter 4-Pole to 7-Pole and 4-Pole part # 37185. The 4-way harness will be a direct plug and play option whereas the 7-way will require you to make two wiring connections. The two connections needed for the 7-way...
    view full answer...
  • 7-Way and Brake Controller Install Recommendation for 2018 Ford F-150
    The T-one 7-Way part # 118283 is a confirmed fit for your 2018 Ford F-150 and will give you a 7-way that wires into the factory harness of your truck. Then for an install harness for a brake controller that plugs into the port under your dash you'd then need the part # 22292 and you'd be ready to install a brake controller. The brake controller I recommend is the Prodigy P3 part # 90195 because this brake controller senses the amount of braking your tow vehicle is applying and puts a...
    view full answer...
  • Compatibility of 7-Way Trailer Connector on 2017 Ford F-150
    On your 2017 Ford F-150, it sounds like you have an adapter like the Hopkins # 37185. The orange and blue wires you splice into are the power and brake controller output wires. You are correct that the remaining wire is your reverse light signal wire. You do not need to have the reverse light wire for your 7-way trailer connector to work with the other functions, you only need to connect that wire if you want reverse lights, reverse lockout for a surge brake coupler, or a backup camera....
    view full answer...
  • 7-Way Trailer Connector Brake Controller Output Wire on 2017 Ford F-150 XLT
    It sounds like you are connecting wires to an aftermarket 7-way on your 2017 F-150. There are two wires run from under the hood to the end of the driver's side frame rail. One is a blue wire which is the electric trailer brake output wire that will need to be run to the 5 o'clock pin on your 7-way. The other wire is the hot 12V wire that will be run to the 1 o'clock position. You will need to have a short wire added from that frame rail to the 7-way, so I recommend using # 10-1-1 which...
    view full answer...
  • Tekonsha Wiring Harness For 2018 Ford F-150
    If you already have a 4-way connection you will need the Universal Installation Kit for Trailer Brake Controller # ETBC7. This kit includes everything you need to install an electric trailer brake controller and 7-way connector and this product is the best way to convert a 4-way to a 7-way connection. If you are using the Tekonsha Primus IQ Trailer Brake Controller # TK90160, the Tekonsha Plug-In Wiring Adapter # 3016 is the fit for 2018 Ford F-150. If you need a 4-Way, the Hopkins...
    view full answer...
  • Can 7-Way and Brake Controller Install in 2017 Ford F-150 with 4-Way
    Luckily for you, your 2008 Ford F-150 already has most of the items you need for a 7-way (circuit breakers, etc). Therefore, the only thing you need to install a 7-way is the Adapter 4-Pole to 7-Pole and 4-Pole part # 37185. This adapters plugs into the 4-way you have now and comes with four blunt cut wires, two of which (brake output, 12 volt) will need to be connected the end of the driver's side frame rail (see photo). If you also need a brake controller then I recommend using the...
    view full answer...
  • 7-Way and Brake Controller Recommendation for 2018 Ford F-150
    To add a 7-way and brake controller to youd 2018 Ford F-150 that doesn't have the factory tow package you'll need to start with a 4-way (if you do not have one). For that you would want the # HM11140735. 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...
    view full answer...
  • 4-Pole Wiring for 2018 Ford F-150
    We have 4-pole wiring harnesses for the 2018 Ford F-150 such as Curt # C56110 which is a direct OEM replacement. This item and the similar Hopkins part # HM11140735 plugs in at the rear of the truck with a rectangular plug. Please refer to the linked photo. If instead your truck has a round U.S Car type connector you can use Curt # C55774 which includes both 4-pole and 7-way type connectors on one product.
    view full answer...
  • 4-Pole to 7-Way Wiring Conversion Kit for 2011 Ford F-150
    If your 2011 F-150 has a pre-installed 4-pole harness (which probably has a rectangular connector on the truck side like the one on parts # C56110 and # HM11140735; see the linked photo, please) then you can convert that wiring to a 7-way using kit # ETBC7. This kit has all the parts needed to upgrade the 4-pole setup to a fully functioning 7-way. You will retain your current 4-pole and plug it in to the included 7-way adapter in the kit, then make a few more wiring connections for...
    view full answer...
  • How to Power Skull Trailer Hitch Receiver Cover on a 2018 Ford F-150 Raptor
    The skull trailer hitch cover, part # CR-018, plugs into a standard 4-way trailer connector at the back of your 2018 Ford F-150 Raptor. If you don't have a trailer connector you can add one using part # HM11140735. It does not include a hitch pin. Use part # PC3 for a standard pin and clip or, this is what I would do, get a locking pin like part # e98880 to protect it. The wiring harness is 18 inches long. If it isn't long enough to reach your 4-way you can use an extension like...
    view full answer...
  • Recommended Trailer Wiring on 2009 Ford F-150
    It appears you are looking for a trailer wiring connection for your 2009 Ford F-150. There are a few different options I recommend depending on your truck wiring. If you have no factory wiring, then you will use the Tekonsha 4-way harness # 18252 with its quick splice connectors and circuit tester to install a 4-way trailer connector. If you have the factory 4-way, then I recommend the Hopkins # HM11140735. If you then want to upgrade to a 7-way, you can use the kit # ETBC7 to do...
    view full answer...

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Info for this part was:

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

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