Universal Wiring Adapter for Hayes Trailer Brake Controllers
(60 reviews)
Price: $20.94
Universal Wiring Adapter for Hayes Trailer Brake Controllers
Item # HA81789-HBC
Retail:$36.73
Our Price: $20.94
You Save: 43%
In Stock
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.
Need help with installation?
Locate installers near meIn-stock alternatives that can ship today
- All Info
- Reviews (60)
- Q & A (0)
- Photos
Hayes Accessories and Parts - HA81789-HBC
- Trailer 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.
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
Customer Satisfaction Score:
95% were satisfied with this product
5% of customers were not satisfied
- Product did not meet expectations
- Wrong item was ordered
- Did not arrive in time
Customer Reviews
Universal Wiring Adapter for Hayes Trailer Brake Controllers - HA81789-HBC
Average Customer Rating: 4.6 out of 5 stars (60 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.by: Robert Barker04/23/2024
This is my second order with etrailer. Both experiences with your company have been very positive. The knowledge and friendliness -along with following up on orders and satisfaction have been much appreciated. Brittany, the customer representative, is a huge asset to etrailer.
by: Richard10/01/2023
25 minutes after placing my online order with etrailer I got a phone call from a representative, ensuring that all of my order was correct was in stock and was being packaged for shipment. I had all of the parts that I ordered three days later, and a verification email that it was delivered. etrailer Runs their business. The way every business should be run. They take care of their customers from beginning to end and today, one year after the purchase. I got an email from them to find out how things were going. Six stars.
by: Benjamin 08/22/2023
High quality wire harness. I had to order parts from VW to make a pigtail to connect to the factory harness. All this and the part numbers were supplied with the instructions through etrailer.
by: Tracy 03/31/2024
Exactly what I ordered, helped keep the wiring under the dash organized, delivery of product prompt, all good!!
by: 08/12/2023
Wiring is NOT conventional..
None of the harness wires matched up to the flat 4 wiring.
Red was yellow green was brown etc.
And wiring or color ceding was included with the 7 pin harness
by: James11/07/2018
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.
by: Jerry M06/30/2016
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.
by: Bob P.04/10/2016
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.
by: Nicholas09/22/2020
It took a while to figure out which wire to tap into for the brake signal, but we eventually figured it out. It takes some awkward body positioning to locate the wires above the brake pedal.
by: Dave W03/09/2015
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.
by: Revis04/12/2023
Easy hook up with good instructions, high quality with heavy wiring
by: Ken K09/08/2020
Made trailer brake install easy.
by: Ben10/17/2022
came in handy getting my brake controller installed
by: Bruce H05/31/2015
Very pleased with product. Better than the factory of same product. It arrived before estimated date and installation was easy.
by: Norman 05/15/2023
Fast service - great product. I have yet to tow with it.
by: Pete11/22/2022
Handy wiring set up for easy instillati on.
by: Robert09/20/2022
Installing was easy, works great.
by: DAVE12/22/2016
Works great with the Hayes brake controller. Makes older vehicle installation a breeze.
by: Jack P.01/20/2017
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.
by: Quench03/03/2020
Makes installing trailer brake controller super simple. Great product.
by: James06/15/2019
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.
by: Roger07/22/2019
Just traded car in for new one. Much easier to leave old cars wiring alone and add new plug to replacement car.
by: Roy 04/26/2023
Roy
4/27/2024
Great, no problems
by: Brad03/03/2016
Product quality and function is every bit as good as expected.
by: Richard 03/07/2024
25
60
Show More Reviews
See what our Experts say about this Hayes Accessories and Parts
- How Does Brake Controller Install in 2018 Chevy ColoradoYour 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...
view full answer... - Installing a Brake Controller in a 2008 Lincoln Mark LTThe Hayes Blackbird Trailer Brake Controller 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 Adapter for Hayes Trailer Brake...
view full answer... - Installing Brake Controller in 2018 Chevy ColoradoOn 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...
view full answer... - Will Hayes Sincronizer Trailer Brake Controller Fit on a Honda Goldwing MotorcycleYes, 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 bike's...
view full answer... - Brake Controller Installation on 1999 Ford F550 and 2000 Chevy C/K Cab and Chassis ModelsIn addition to the Hayes Energize III # HA81742B brake controllers, you'll need a # HA81783-HBC wiring harness for the 1999 Ford F550. The 2000 Chevy 1 ton and cab/chassis models weren't prewired for a brake controller until the 2001 model year, so you'd need to hardwire in the controller for that vehicle. You'll also need a # HA81789-HBC universal pigtail, unless you want to cut off the black connector on the controller. I'd recommend using the pigtail, as it would allow you to easily...
view full answer... - Trailer Brake Controller Installation in 1996 Chevrolet TahoeYou 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 # C55319. I have linked an installation video and article to help you with your...
view full answer... - Parts Needed To Install a Hayes Engage Trailer Brake Controller On a 2020 Chevy Express VanTo install the Hayes Engage Trailer Brake Controller # HA81760 on your 2020 Chevrolet Express Van you will need the Wiring Adapter # HA81789-HBC. If your van included the 7-way wiring you will need to check for the wiring taped and tucked under the driver side floor mat up towards the firewall. If you can not find the wiring here you may also have the blue output brake wire already ran from the back to the front. It is located under the dash near the emergency brake pedal. If your Express...
view full answer... - Recommended Pigtail for a Hayes Syncronizer Brake Controller on a 2012 Chevy TahoeThough the 2012 Chevy Tahoe will have all the wires run for a brake controller, there is no port present under the dash for one to plug directly into. That being said, we do have a plug that will attach to the one on your Hayes Syncronizer # HA81725. The # HA81789-HBC will have bare wires on the end so you can connect to the wires under the dash.
view full answer... - Recommended Electric Over Hydraulic Trailer Brake Conversion for Dual 10K AxlesThe Disc Brake Kit # K2R1058D13 by Kodiak is the brake set that you will need to use for your 10,000 lb Dexter Torsion axles. When it comes to hardware, like the brake line, I recommend going with the HydraStar Hydraulic Brake Line Kit # HS496-252 which will wear better than other traditional brands. These lines are very flexible so the line is easy to maneuver under the trailer. The only downfall is that you cannot cut the line due to how hard and risky it is to do yourself. All you have...
view full answer... - Recommended Tekonsha Prodigy P3 Electric Brake Controller # 90195 for 2009 Chevy SilveradoFor 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 Tekonsha...
view full answer...
- Parts Needed to Install Hayes Blackbird Trailer Brake Controller in 1994 Chevrolet BlazerTo install the Hayes Blackbird Trailer Brake Controller in your 1994 Chevrolet S-10 Blazer you will use the following items in addition to the controller itself. You will need Universal Wiring Adapter # HA81789-HBC that plugs in to the back of the Blackbird and provides 4 leads for hardwired installation. You will also use our brake controller install kit # ETBC7 which includes a 7-way socket, wiring, connectors, circuit breakers, etc. - everything you need to install the Blackbird. I...
view full answer... - Will Hayes Genesis Brake Controller Work on a 2005 Toyota Tundra LimitedThe Hayes Genesis # HA81790 with the adapter # HA81785-HBC is exactly what you need if your 2005 Toyota Tundra has the factory 7-Way. If your Tundra doesn't have a factory 7-Way then you'll need to use the pigtail # HA81789-HBC instead of the adapter, plus you'll need to install a 4-Way # C59236 and the Universal Installation Kit # ETBC7. As far as the air bag suspension goes, the Firestone # F4130 are for new Ram pickups so for your Tundra you're going to need the Firestone Ride-Rite...
view full answer... - Parts Needed to Install Hitch, Brake Controller, 7 Way and 4 Way on a 2002 Chevrolet Express VanFirst we will start off with the hitch. I recommend going with the Curt Class III Receiver Hitch, # 13040, for your 2002 Chevrolet Express Van. This hitch receiver bolts directly to the frame of the van with no welding or drilling required. For a t-connector we have the T-One Wiring Harness, # 118377, that plugs directly into your existing taillight wiring without any cutting or splicing. In order to obtain a 7 way at the back of the van, you will need to install a Universal Installation...
view full answer... - Is There a Plug and Play Harness for Hayes Energize III Brake Controller on 2016 MB Sprinter 3500I have a solution for you, and there are some brake controllers available that can be used with a plug and play wiring harness to ease installation; however the Hayes Energize III # HA81742B is not one of those controllers and it would need to be hard wired into the vehicle no matter what. If you want to go that route you can use the # HA81789-HBC to plug into the Energize III and gives you the pigtail wiring needed to hardwire. With that said, instead of the Hayes Energize III I recommend...
view full answer... - How Does Hayes BlackBird Brake Controller Install In 2011 Chevy Silverado 1500To install the Hayes # HA81790 in your 2011 Chevy Silverado 1500 requires the install harness part # HA81789-HBC which gets wired to the brake controller wiring you have present under the dash of your truck. To see exactly how this is done and to also see the under-hood connections that need to be made check out the install video and help article I attached that covers this. The video shows a similar controller installed in a 2011 Silverado but the process is the exact same.
view full answer... - How Does a Hayes Brake Controller Wire to a 2011 Chevy SilveradoOn the 2011 Chevrolet Silverado Z71, the wiring for the brake controller is already ran and bundled underneath the dashboard on the driver side. This wiring may be taped together and tucked up and out of the way. There is not a plug-in wiring harness or brake controller port to plug into. In addition to connecting the brake control wires, there are 2 wires underneath the hood that will need to be connected (see FAQ and video). To install the Hayes Engage part # HA81760 you are going to...
view full answer... - Brake Controller Connector Location on 2005 Dodge Ram 1500If your 2005 Dodge Ram 1500 came with a factory 4-Way or 7-Way trailer connector at the rear then yes, there is an OEM harness under the driver's side dash and to the right of the emergency brake pedal. Typically this should be blue but the color could vary. If you don't have a factory trailer connector at the rear of your vehicle then you'll need to hardwire everything. The brake controller I recommend, if you don't already have one, is the Hayes-Lemmerz Energize III+ # HA81742B because...
view full answer... - Parts Needed to Install Brake Controller On 2008 Hyundai VeracruzTo 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 T-Connector...
view full answer... - Harness Needed To Install Hayes Trailer Brake Controller On 2020 Chevy Silverado 1500In order to install the Hayes Genesis Trailer Brake Controller on a 2020 Chevrolet Silverado 1500 you will need the Universal Wiring Adapter for Hayes Trailer Brake Controllers part # HA81789-HBC. This will wire up to the brake controller pigtail in the glovebox which you can get from the dealer if you don't have.
view full answer... - Availability of Hayes Quick-Connect Brake Controller Adapter Harness for 2015 Toyota TundraWe 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;...
view full answer... - How to Install and Remove the Connector on Hayes Universal Wiring Adapter # HA81789-HBCThe 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 Hayes Energize III+ # HA81742B 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,...
view full answer... - Recommended Brake Controller Wiring Adapter for 2017 Ram 1500 and Hayes Blackbird ControllerThe Hayes Blackbird Trailer Brake Controller HA81726 will use the Custom Wiring Adapter for Hayes Brake Controllers # HA81795-HBC for an easy fit in your 2017 Ram 1500. The harness is located underneath the dash, to the left of the steering column, taped to another harness near the emergency brake pedal. I've attached a video of a similar brake controller harness installation to assist with the location. Alternatively you could hardwire it or use the universal adapter # HA81789-HBC.
view full answer... - Brake Controller Wiring Harness for Older Hayes Energizer and 2013 Ram 1500For 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 new...
view full answer... - How to Complete Hardwire Installation of Hayes Synchronizer Brake ControllerI'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 controller,...
view full answer...
Do you have a question about this Accessories and Part?
Info for this part was:
Edited by:
Lindsey S
Installed by:
Jeff D
Installed by:
Cole B
Expert Research:
Jameson C
Expert Research:
Adam R
Updated by:
Laura H
Updated by:
Wilson B
Written by:
Tammy D
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
Heather A.
11/8/2018
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 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 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 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.
Helpful Links
Accessories-and-Parts/etrailer/ETBC7.html
Accessories-and-Parts/Hayes/HA81789-HBC.html
Custom-Fit-Vehicle-Wiring/Tekonsha/118408.html
faq-etbc7.aspx
tv-install-tekonsha-brake-controller-2010-jeep-commander-90885.aspx