Universal Wiring Adapter for Hayes Trailer Brake Controllers

Universal Wiring Adapter for Hayes Trailer Brake Controllers

Item # HA81789-HBC

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HA81789-HBC - Brake Controller Wiring Adapter Hayes Accessories and Parts
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  • Brake Controller
  • Wiring Adapter
  • Plugs into Brake Controller
  • Hayes
  • Universal
Designed for applications that do not come equipped with a brake control wiring harness port from the factory, this adapter plugs into your Hayes electric trailer brake controller at one end and the other end splices into your vehicle's wiring. Call 800-298-8924 to order Hayes accessories and parts part number HA81789-HBC or order online at etrailer.com. Free expert support on all Hayes products. Guaranteed Lowest Price and Fastest Shipping for Universal Wiring Adapter for Hayes Trailer Brake Controllers. Accessories and Parts reviews from real customers.


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  • Reviews (12)
  • Q & A (23)
  • Videos (1)
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Hayes Accessories and Parts - HA81789-HBC

Designed for applications that do not come equipped with a brake control wiring harness port from the factory, this adapter plugs into your Hayes electric trailer brake controller at one end and the other end splices into your vehicle's wiring.


Features:

  • Universal wiring adapter provides a quick-disconnect for your electric trailer brake controller
    • No need to cut the plug off the brake controller to wire it directly to your vehicle
    • Makes it simple to plug and unplug controller for use in a different vehicle or for storage when you're not towing
  • Wire end splices into your vehicle's wiring
    • Use on a vehicle that does not have a factory tow package or is not equipped with a plug-in port
  • Connector end joins with the plug on your electric brake controller
    • Compatible with time-delayed and proportional brake controllers from Hayes
  • Wire length: 24"
  • Made in the USA


Installation of Universal Hayes Brake Controller Adapter

To install your Hayes electric brake controller, you need to connect the wiring of the controller to your vehicle. Certain auto manufacturers offer pre-wired options, typically known as tow packages, in which the wiring is run for you from the dash to the trailer connector on the back of your vehicle. Usually when this is done, a port is installed at your dash so that you can easily plug in a brake controller. However, if no port is present, you will have to splice into your wiring.


With this universal adapter, you can install your Hayes brake controller without having to wire the controller directly to your vehicle. If your vehicle has a factory tow package, just splice the pigtail end of the adapter into your vehicle's factory brake control harness wiring, and then plug the other end of the adapter into the controller. If your vehicle doesn't have a factory tow package, you'll have to hardwire the pigtail end of the adapter into your vehicle's wiring. Because only the adapter is hardwired to your vehicle, you can unplug and remove your brake controller at any time to transfer it to another vehicle or securely stow it away.


If your vehicle is not equipped with a factory tow package, you will need to purchase additional equipment to ensure that the signals from your brake controller are sent to your trailer's brakes. We recommend etrailer.com's exclusive 7- and 4-way brake control installation kit (ETBC7 - sold separately).



81789HBC Hayes Universal Pigtail Brake Control Wiring Harness

Replaces 81789-HBC







Video of Universal Wiring Adapter for Hayes Trailer Brake Controllers


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




Video Transcript for Hayes Brake Controller HA81789-HBC Review

Today we'll be reviewing part number HA81789-HBC. This is the Hayes universal wiring adapter for the Hayes trailer brake controllers. The universal wiring adapter provides a quick disconnect for your electric trailer brake controller so that means that there's no need to cut the plug off the brake controller to wire it directly to your vehicle and it makes it very simple to plug and unplug the controller for use in a different vehicle or for storage when not in use. The wire end splices into your vehicle's wiring. You'll want to use this on a vehicle that does not have a factory tow package or is not equipped with a plug-in port. If you're vehicle is not equipped with a factory tow package, you will need to purchase an additional equipment to ensure that the signals from your brake controller are sent directly to your trailer's brakes. We recommend etrailer.com's exclusive 7-way and 4-way brake control installation kit, sold separately with part number ETBC7. The connector end on this side joins with the plug on your electric brake controller.

Today we have our Hayes Brake Boss just to show how easy it is to connect those two ports. They just snap together and just like that they're connected. To disconnect you push down the tab and you separate the two halves. This is going to be compatible with time delayed and proportional brake controllers from Hayes. The wire length is going to measure 24". That's going to do it for today's review of part number HA81789-HBC.

This is the Hayes universal wiring adapter for the Hayes trailer brake controllers. .


Customer Reviews

Universal Wiring Adapter for Hayes Trailer Brake Controllers - HA81789-HBC

Average Customer Rating:  4.8 out of 5 stars   (12 Customer Reviews)

Designed for applications that do not come equipped with a brake control wiring harness port from the factory, this adapter plugs into your Hayes electric trailer brake controller at one end and the other end splices into your vehicle's wiring.

- HA81789-HBC
by:

It's a plug and 4 wires. I haven't installed it yet but most likely it will work. It would have been nice if they had the vehicle-specific cable for their brake controller but then maybe my vehicle doesn't have a receptacle (2006 Jeep Commander). Not sure yet, haven't got that far, don't know when I will. I wanted to do it yesterday but it's been cold and rainy here and I don't have room in my garage to work so I've been working on the Jeep in the driveway. I got the trailer hitch mounted the other day and now I'm working on the wiring for the trailer plug. I put the Jeep up on 4 ramps to give me room to get under it and run wiring. At 275 pounds I need the extra space. When the rain stops and the wind dies down I will make an attempt to install this device, but I got this email first asking me for a review and an opinion. I don't really have an opinion yet and I can only write a review of what I know so far, which is very little. The instructions that came with it are quite simple. They tell you to plug it in and then read the instructions that came with the controller that you plugged it into. I was hoping for something more specific, like where should I look for the signal from the brake pedal to the stop lamps. I guess I'll start at the pedal and look for a place to tie in. Maybe YouTube has a video demonstrating the installation procedure for the controller using this Wiring Adapter. That would be nice too. The price for the item was fair, as was the shipping cost and delivery time. No complaints with any of that. I'd share a picture of the product but actually there's one on the page where it is advertised, the page from which I ordered it. I'm not sure why they want me to "share a picture of my product". As for the problem that it solved for me... I didn't have one. It solved that problem. Now I have one. 580967


Comments

Thank you for your review. There is not a port to plug a brake controller adapter into on the 2006 Jeep Commander. If the 2006 Jeep Commander has a factory towing package the wires for a 7-way will be ran to the front of the Jeep. You will then use the hardwire adapter part # HA81789-HBC
Universal Wiring Adapter for Hayes Trailer Brake Controllers
$15.00
to splice into those wires. You will also need part # 5506 to complete the wiring to the battery. If the 2006 Jeep Commander does not have a factory towing package it requires the 7-way plug to be hardwired. In this case an wiring kit part # ETBC7
Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
$51.47
is needed. The ETBC7 comes with the all of the necessary wiring to wire in the plug and the brake controller. If the vehicle does not have a factory towing package you may also need a 4-way flat connector if you do not already have one. The 4-way connector is part # 118408
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
$46.95
for the 2006 Jeep Commander without towing package. I have attached a video of installing a brake controller on a 2010 Jeep Commander with factory wires ran and a help article for the ETBC7 installation.

-- Heather A - 11/08/2018

45530

- HA81789-HBC
by:

Just traded car in for new one. Much easier to leave old cars wiring alone and add new plug to replacement car. 673514



- HA81789-HBC
by:

The pig tail was easy to hook up. I was replacing a faulty unit so all the wires were handy. I did not want to do a hard wire in, this made it easy. 658645



- HA81789-HBC
by:

This product makes installing the brake controller so much easier, because I use this unit with multiple tow units it is nice to be able to unplug and move to the other vehicle. 333930



- HA81789-HBC
by:

Came quick, just as ordered. 334694



- HA81789-HBC
by:

Works great with the Hayes brake controller. Makes older vehicle installation a breeze. 327406



- HA81789-HBC
by:

Product arrived in good condition packaged very well as always great service and quick response.Will be buying from E-trailer again. Was able to find a replacement connector for my Hayes brake controller. Thank you keep up the good service. 266706



- HA81789-HBC
by:

Made the installation a breeze and allows for the plug and play of the controller when I need it as opposed to the permanent installation of a brake controller in my other pickup. 243612



- HA81789-HBC
by:

Fit good shipped fast thanks good peopl e. 241820



- HA81789-HBC
by:

Product quality and function is every bit as good as expected. 239352



- HA81789-HBC
by:

Very pleased with product. Better than the factory of same product. It arrived before estimated date and installation was easy. 199138



- HA81789-HBC
by:

etrailer.com delivered as promised. Fast friendly service. Product arrived quickly as was exactley what I needed. The how to video was spot on. Thanks, Dave W. 177657


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Ask the Experts about this Hayes Accessories and Parts

Do you have a question about this Accessories and Part?


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  • How Does Brake Controller Install in 2018 Chevy Colorado
  • Your 2018 Chevy Colorado has the brake controller wiring ran under the dash of the truck but there isn't an adapter that uses a connector. Reason being there's only 4 blunt cut wires under your vehicle dash for the brake controller wiring and not a connector of any type. To install the Hayes controller part # HA81760 you need the Hayes universal connector part # HA81789-HBC to run to those wires. I attached an install video that shows a similar brake controller installed in a 2018 Chevy...
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  • Installing a Brake Controller in a 2008 Lincoln Mark LT
  • The Hayes Blackbird Trailer Brake Controller - 1 to 4 Axles - Time Delayed # HA81726 is absolutely something you can install yourself and won't look out of place in your 2008 Lincoln Mark LT. If you have a factory 7-way, then you only need to add the custom wiring harness # HA81783-HBC to plug into your factory port beneath the dash. If you have the factory 4-way, then you can use that harness along with the # ETBC7. If you don't have factory wiring, you will need the Universal Wiring...
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  • Smallest Time Delayed Brake Controller for Installing on Motorcycle
  • The smallest time delayed brake controller that we offer is the Hayes Blackbird Trailer Brake Controller # HA81726. The Blackbird measures 3-3/4 inches long x 3 inches wide x 1 inch thick. To install this brake controller on your motorcycle, you will want to use the universal wiring adapter # HA81789-HBC. I have attached a review video of this brake controller for you.
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  • Recommended Tekonsha Prodigy P3 Electric Brake Controller # 90195 for 2009 Chevy Silverado
  • For your 2009 Chevy Silverado 1500 the duct tape is definitely a warning sign that things may not be installed correctly. The Hayes Genesis controller # HA81790 has a connection that is not the same as the Tekonsha controllers. The pigtail # HA81789-HBC was hardwired to give you the appearance of a factory connection as that truck model in 2009 had the wiring present under the dash but without a connector. My recommendation is to hardwire the Tekonsha harness in a similar way. The...
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  • Installing Brake Controller on 2004 Ford Explorer With or Without Factory Tow Package
  • The Hayes Engage Trailer Brake Controller - 1 to 3 Axles - Time Delayed # HA81760 will plug right into your dash if you have the factory 7-way when you use wiring harness # HA81783-HBC. The connection point on your Explorer is behind the glove box on the passenger side. If you have the factory 4-way then you can use the wiring harness # HA81789-HBC which is a pigtail and then use kit # ETBC7 to complete your wiring. If you don't mind cutting the harness, you can avoid the pigtail...
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  • Will Hayes Sincronizer Trailer Brake Controller Fit on a Honda Goldwing Motorcycle
  • Yes, the Hayes Syncronizer Trailer Brake Controller # HA81725 is a good choice with your Honda Goldwing. A time delayed controller is a better choice on a motorcycle because of the limited space for installation. A proportional controller has more limitations as to how they can be mounted which will be an issue on a bike. Also, the leaning of a motorcycle while turning will tilt the controller and a proportional controller cannot function this way. To connect the controller to the...
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  • How to Complete Hardwire Installation of Hayes Synchronizer Brake Controller
  • I'd be happy to assist with that. In addition to the # HA81725 Hayes Synchroinizer brake controller, you'll need a universal wiring harness, part # HA81789-HBC and our Brake Controller Installation Kit, part # ETBC7. The kit includes everything necessary to install a brake controller in your vehicle, with the exception of the controller itself and a 4-pole trailer wiring harness for the vehicle. If you click the provided link, you can see some FAQ articles about installing a brake...
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  • You can install a brake controller like the Hayes Engage # HA81760 in your 1996 Chevrolet Tahoe using their wiring adapter # HA81789-HBC. You will also need our trailer brake controller installation kit # ETBC7 to complete your hardwired installation. So long as the Tahoe already has a 4-pole flat type trailer connector only the above items are needed, but if you do not have a 4-pole already you can use part # 118319. I have linked an installation video and article to help you with...
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  • How to Install and Remove the Connector on Hayes Universal Wiring Adapter # HA81789-HBC
  • The Hayes Universal Wiring Adapter # HA81789-HBC that you referenced is intended to plug into the back of a compatible Hayes brake controller such as their Genesis # HA81790 and then hard-wire to your vehicle using the 4 wire leads. The plug portion on the adapter is not intended to mate with any connectors on your 2007 Dodge Ram 2500 Pickup. There are other brands of brake controllers that do use adapters with plugs on both ends, one for the controller and one for the vehicle, such...
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  • Installing Hayes Energize III Brake Controller on 2012 Chevrolet Silverado
  • To install your Hayes-Lemmerz Engerize III 81741B in your 2012 Chevrolet Silverado, you will want to use the Hayes Universal Wiring Adapter # HA81789-HBC. This universal adapter will need to be hardwire installed for your Silverado. Hayes does not offer a wiring harness that will plug into the brake controller port under the dash, if your truck has one. I have attached a help article on installing a brake controller in a 2007-2013 Silverado for you. This help article will walk you...
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  • Trailer Wiring Harness to Install Hayes Brake Controller on 1996 GMC K1500
  • For the Hayes Energize XPC brake controller the wiring harness that connects into the wiring of your 1996 GMC K1500 is # HA81789-HBC. It needs to be hardwired into your truck with the black wire going to 12 volt power, white to ground, the blue goes to the rear of your truck to power the trailer brakes, and the red connects to the stop light switch which is the wire coming from the truck's brake pedal connector that is hot only when the pedal is pressed. You can test this with a circuit...
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  • How to Wire the Hayes Blackbird Brake Controller to a 2009 GMC Sierra
  • I attached a picture that has a diagram that details which wire from your 2009 GMC Sierra gets wired to the Hayes Blackbird Brake Controller part # HA81726 that you referenced. You will also need the universal install harness part # HA81789-HBC that you also referenced. The red wire of your truck goes to the black wire of the controller. The dark blue wire of truck goes to blue of controller. The light blue or orange wire goes to the red wire of the controller. The white wire of...
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  • Installing Brake Controller in 2018 Chevy Colorado
  • On this page if you there is a heading titled "Featured Help Information" (most likely have to scroll down below part links), that will have the install video for a brake controller in a 2018 Chevy Colorado that I mentioned in the answer page you found. Your 2018 Chevy Colorado has the brake controller wiring ran under the dash of the truck but there isn't an adapter that uses a connector. Reason being there's only 4 blunt cut wires under your vehicle dash for the brake controller wiring...
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  • Parts Needed to Install Brake Controller On 2008 Hyundai Veracruz
  • To install the Hayes Trailer Brake Controller # HA817922BB, you will want to use the Hayes Universal Wiring Adapter # HA81789-HBC. This pigtail will splice into your vehicle. The white wire needs to be grounded. The black wire will connect to the battery. The red wire goes to the stoplight wire. The blue wire is connected to the trailer connector at the rear of the vehicle. You will also need a wiring harness for your vehicle if you don't already have one. I recommend the Tow Ready...
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  • For your older Hayes Energizer brake controller you can use harness # 3023-P for a 2013 Ram. But you will have to cut off the end that plugs into the controller and the plug on the controller and hardwire them together color for color. If the connector on the back of your controller is built into the controller and there are no wires showing then you would use # HA81789-HBC and # 3023-P. It is possible though that your Hayes controller will not work with the 2013 Ram because of the...
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  • Availability of Hayes Quick-Connect Brake Controller Adapter Harness for 2015 Toyota Tundra
  • We do offer a Hayes brake controller wiring adapter for hardwired applications, part # HA81789-HBC, but for tow package-equipped trucks with an under-dash port only Tekonsha and Curt quick-connect adapters are offered. For any Tekonsha brake controller you can use part # 3031-P that you referenced; or for a Curt controller part # C51455. If you don't mind voiding the warranty on the harnesses you can buy two and splice them together. You can use part # HA81789-HBC along with # 3031-P;...
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  • Where to Mount and Install a Brake Controller on a 2019 Ford Explorer
  • If you already have a tow package you can use the custom adapter # HA81783-HBC, otherwise you need a Universal Wiring Adapter for Hayes Trailer Brake Controllers # HA81789-HBC to complete this portion of your install. The helpful review video at the 9:55 mark shows you where to find the port on your vehicle to plug the controller in. While this is a different controller referenced, it shows you where to find the connector in your Ford Explorer. It is a bit hidden under the dash underneath...
    view full answer...


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Info for this part was:

Edited by:
Lindsey S
Expert Research:
Adam R
Updated by:
Laura H
Installed by:
Cole B
Written by:
Tammy D
Photos by:
Zach O
Updated by:
Sarah W

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