Hayes Blackbird Trailer Brake Controller - 1 to 4 Axles - Time Delayed
Universal Wiring Adapter for Hayes Trailer Brake Controllers

Part Numbers: HA81726,HA81789-HBC

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Hayes Time Delayed Controller - HA81726
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Hayes Blackbird Trailer Brake Controller - 1 to 4 Axles - Time Delayed
part number: HA81726

Palm-size brake controller engages your trailer's brakes with a preset intensity when you apply the brakes in your vehicle. Adjustable power output and braking aggressiveness. Includes digital display and manual override.

Features:

  • Brake controller activates trailer brakes with preset intensity
    • Signal is sent to trailer brakes when tow vehicle's brakes are activated
  • Adjustable power output lets you determine the amount of power sent to the trailer's brakes
    • Set to higher output when towing in hilly terrain or with a fully loaded trailer
    • Back off power when towing a lightweight or empty trailer
  • Power ramp time setting lets you adjust the aggressiveness with which the brakes are activated
    • Get full power output faster by moving the switch forward to increase activation speed
    • Achieve smoother braking by moving switch in opposite direction to supply power gradually
  • Easy-to-read LED display communicates brake power output, ramp setting, and error codes
  • Built-in safeguards protect your vehicle and trailer
    • Manual override illuminates brake lights on tow vehicle and trailer
    • Current limiter protects vehicle from shorts in the trailer wiring
    • Hazard flasher immunity prevents pulsing of the brakes when flashers are activated
  • Slide-bar manual override
  • Dependable solid-state construction
  • Quick and easy installation
    • Can be mounted at any angle in any plane, and in any direction
    • Mounting bracket and hardware included
    • Plug-in, vehicle-specific brake control adapter (sold separately) can be used for certain applications to reduce installation time


Specs:

  • Application: trailers with up to 4 axles (8 brake assemblies)
    • Designed for use with electric and electric over hydraulic brakes
  • Dimensions: 3-3/4" long x 3" wide x 1" tall
  • Limited lifetime warranty


Time-Delayed Braking

The Blackbird applies your trailer's brakes when the brake pedal in your tow vehicle is engaged. Every time you apply the brakes in your vehicle, a signal is sent - via the brake switch - to the Blackbird. The controller then sends power out to your trailer brakes to activate them with an intensity set by you, at a rate determined by you. Both the amount of braking power (output) and rate of application (ramp time) can be adjusted to suit your preference, the road conditions, type of trailer, and size of the load. To determine which levels are best for your application, you must test out your towing setup and choose what feels best.


A time-delay controller is so named because there is a delay between the time that you initially apply the brakes in your tow vehicle and the time that the controller reaches the set maximum power output. Unlike a proportional brake controller, which activates your trailer's brakes based on the deceleration of your tow vehicle, the Blackbird sends power out in the same way, with the same user-set delay, no matter the braking situation. Although this delay always exists, it can be adjusted by changing the ramp time setting. The controller will continue to send out power to the trailer brakes as long as your foot is on the brake pedal, even when your truck and trailer have come to a stop.


Built-In Controls on the Blackbird


Blackbird Controls

The diagram above shows the controls and components of the Hayes Blackbird electric trailer brake controller.


Power Output Control

The power output control lets you set the maximum amount of power that will be applied to your trailer's brakes. Typically, the power output is only readjusted if you switch from a heavy, loaded trailer to a much lighter, empty trailer - or vice versa.


During the initial setup process, use the thumbwheel on top of the Blackbird to adjust the output. To get more power to your brakes, rotate the dial to the right. To decrease the power output, move it to the left.


The output setting will appear on the digital display when you press the brake pedal or activate the manual override. This setting ranges from 5 percent to 99 percent, with 99 percent indicating maximum output.


Power Ramp Time Setting

Power ramp time is the elapsed time from the point that the brakes are first applied to the point that the set power output reaches its maximum. This setting is responsible for determining the aggressiveness of the braking action.


To adjust the ramp time, use the control on the side of the Blackbird. If you want to reach maximum power output faster, move the control forward. To get smoother braking action, slide the control backward, thus supplying power to the trailer brakes more gradually. You can alter this setting to suit your driving preferences or to improve handling based on changing road conditions or varied trailer loads.


The digital display will only show the ramp setting as you adjust it. After a few seconds, it will revert back to display mode.


Digital Display

The Blackbird features an easy-to-read LED screen that displays the power settings as you adjust them.


While braking, the display shows the amount of power going to the trailer brakes as a percentage of the total power available. When the brake pedal is released, the unit will go into standby mode.


The display will also show trouble codes to alert you to any potential problems, such as a short circuit or an open circuit. A code will also appear if the brake controller surpasses its rated power limit.


Slide-Bar Manual Override

The manual slide lever overrides the preset power output and allows the operator to engage the trailer brakes without using the vehicle's brakes. In addition to being a necessary safety feature, this option helps to control trailer sway by slowing the trailer to put it back solidly behind the tow vehicle.


You can also engage the manual override to help you move a sliding 5th-wheel hitch closer to your truck's tailgate for tight maneuvering during slow speed turns. Just apply the manual override to hold the trailer in place while slowly moving the tow vehicle forward.


Quick, Simple Installation

Because inertia plays no role in the functioning of this controller, you do not have to mount the unit at any particular angle or position it in any particular direction. As a result, mounting options are limitless, so long as you can still easily access the manual override.


Installation of the Blackbird requires that you either purchase a custom wiring adapter designed to plug into the controller or that you hardwire the controller directly into your vehicle. To hardwire the Blackbird, you must remove the plug at the end of the integrated wiring harness.


Installation Accessories

The Hayes vehicle-specific, dual-mated wiring adapter is available for most newer trucks and SUVs with tow packages. One end of the custom adapter plugs into your vehicle's brake controller port, and the other end plugs into the controller - no hardwiring required.


Hayes also offers a universal wiring harness (HA81789-HBC - sold separately) that plugs into any Hayes brake controller. The 4 leads on the universal harness can then be hardwired into your vehicle. By splicing the universal adapter into your wiring instead of directly connecting the brake controller to your wiring, you gain the ability to unplug and remove the controller from your vehicle should the need arise.


Notes:

  • If a custom brake-control wiring adapter is not available for your vehicle, one of the following will be required:
    • 20-Amp circuit breaker (9506P - sold separately) for 2-brake applications
    • 30-Amp circuit breaker (38630 - sold separately) for 4- to 6-brake applications
    • 40-Amp circuit breaker (9510 - sold separately) for 6- to 8-brake applications
  • If you're hardwiring the controller, it is also suggested that you install an in-line fuse between the controller and the stop light switch (required on 1999 and newer Fords).

See also etrailer.com's exclusive 7- and 4-way brake control installation kit (ETBC7 - sold separately) if you don't already have a 7-way plug at the back of your vehicle.



81726 Hayes Blackbird Electric Brake Controller - Time Based





Universal Wiring Adapter for Hayes Trailer Brake Controllers
part number: 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 Hayes Blackbird Trailer Brake Controller - 1 to 4 Axles - Time Delayed


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

Hayes Blackbird Trailer Brake Controller - 1 to 4 Axles - Time Delayed - HA81726

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

Average Customer Rating:  4.7 out of 5 stars   (24 Customer Reviews)

Palm-size brake controller engages your trailer's brakes with a preset intensity when you apply the brakes in your vehicle. Adjustable power output and braking aggressiveness. Includes digital display and manual override. 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: 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. 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

- HA81726
by: Mel F09/23/2017

This is the second one I have purchased. I like the size and operation of the Hayes Blackbird brake controller. Very easy to install. The Girl that helped me was outstanding! Will use etrailer again. 435704



- HA81726
by: Carey02/08/2018

Received earlier than expected. Out of the box and installed in about 20 minutes. Would by again. 473921



- HA81726
by: Tim P.06/26/2016

I installed this on a 2002 F150. Installing was easy. The additional harness made for this truck worked great! I didn't have to pay anyone to do it! It was so easy I was amazed. 265388



- HA81726
by: Lawrence12/11/2017

This is an excellent brake controller for those who don't have space to mount a controller. Fits in very small places. 459398


Comments

These controllers fit in a small space and work as intended.

Lawrence - 12/11/2018

46616

- HA81789-HBC
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. 673514



- HA81789-HBC
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. 658645



- HA81726
by: Alain06/10/2019

great product, great place to order as always 655889



- HA81726
by: Disappointed05/12/2019

Worked great for about 45 days. Quit working after that. Should’ve spent more money I guess? Plug and play is nice. Wouldn’t buy this one again 641212



- HA81726
by: Kyle05/11/2019

Seems to work it's plug and play assembly was simple only gave 4 stars because the small adjustable screws are hard to put in but pretty clean mount. Overall I'd buy again 641068



- HA81726
by: Ryan S. Peterson05/04/2017

Very good products and very good about the amount of time it took to get to my house. Will definitely order in the near future!! 376247



- HA81789-HBC
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. 333930



- HA81789-HBC
by: Jon01/10/2017

Came quick, just as ordered. 334694



- HA81726
by: jim t.12/29/2016

plug and play took only 10 mins. 330302



- HA81789-HBC
by: DAVE12/22/2016

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



- HA81726
by: BDM09/30/2016

Good features, quality made. like its com pack size, fits under dash out of way. 301883



- HA81789-HBC
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. 266706



- HA81789-HBC
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. 243612



- HA81789-HBC
by: bill w03/26/2016

Fit good shipped fast thanks good peopl e. 241820



- HA81789-HBC
by: Brad03/03/2016

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



- HA81726
by: keith02/11/2016

Delivered fast. Everything i ordered. 237533



- HA81789-HBC
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. 199138



- HA81789-HBC
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. 177657



- HA81726
by: Andy07/20/2014

Kit and online video made it an easy jo b. 142318


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Ask the Experts about this Brake Controller
Do you have a question about this Brake Controller?


  • 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
    view full answer...

  • Recommended Brake Controller For 2016 Ram 1500
  • The Hayes Brake Controller, part # HA81726 you asked about is a time-delayed controller. A time-delayed controller has a preset intensity and is activated when the brake pedal is pressed on the towing vehicle. The brake controller also has a manual override, and can be mounted at any angle or direction. For your Ram 1500 you will also need the plug-in adapter, part # HA81795-HBC. I recommend the Tekonsha P3, part # 90195. This is one of our most popular brake controllers because it is
    view full answer...

  • Troubleshooting OC Error Message on Hayes Blackbird Trailer Brake Controller HA81726
  • When the Hayes Blackbird Time-Delayed brake controller # HA81726 displays the error code OC this means that the controller senses that it has lost its electrical connection to the trailer's brake circuit. This code could be caused by many things: trapped water, dirt or corrosion inside the vehicle socket or trailer plug, or it could be due to a loose physical connection at the 7-way or at the blue wire at the back of the controller. The blue wire carries the output signal from the controller
    view full answer...

  • 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.
    view full answer...

  • Recommended Brake Controller Wiring Adapter for 2017 Ram 1500 and Hayes Blackbird Controller
  • The 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.
    view full answer...

  • How to Set the Right Power Output on a Brake Controller when Towing a Trailer
  • For any brake controller, including the Hayes Blackbird # HA81726, the set up process is basically the same. You start by setting the controller to the mid point for power output. Then with the truck and trailer coupled together on level, dry ground, tow at about 20 miles per hour or so. Then apply the manual override on full (not the truck's brake pedal). If the trailer brakes lock up and skid, adjust the power down and do the test again. If braking is insufficient then adjust the power
    view full answer...

  • Parts Needed to Install Brake Controller in a 2008 Dodge Ram
  • To install the Hayes Blackbird Trailer Brake Controller # HA81726 in your 2008 Dodge Ram 1500 all you need is the install harness part # HA81782-HBC which will plug into the port under the dash. If your truck has a 7-way you would be set with just those two things. If your 2008 Dodge Ram pickup does not have a factory trailer connector (4-pole or 7-way) at the back bumper then for brake controller installation you will do a hardwired installation using our Brake Controller Installation
    view full answer...

  • What is the Correct Harness for a Hayes Blackbird Brake Controller on a 2014 Jeep Grand Cherokee
  • For the Blackbird brake controller # HA81726 and your 2014 Jeep Grand Cherokee you will need Hayes harness # HA81796-HBC.
    view full answer...

  • Available Brake Controller to Fit a Honda Goldwing Towing a Tent Trailer.
  • I found a brake controller for your Honda Goldwing and tent trailer application. The Hayes Blackbird Brake Controller , # HA81726, and Universal Wiring Adapter, # HA81789-HBC, are the controller and harness I recommend for your application. The Hayes controller is a time-delayed controller that will allow set and adjust the power output to a preset intensity. You will use the Universal Wiring Harness to wire the controller to your bike and trailer. I have attached an article that will
    view full answer...

  • 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
    view full answer...

  • Does Hayes Blackbird Brake Control Wiring Harness Need Extra Ground Wire on 2014 Toyota Tundra
  • I think what you mean is does wiring harness # HA81785-HBC require a separate and additional ground wire for a 2014 Toyota Tundra. Good news! It doesn't. Only the Tekonsha brake controller wiring harness, # 3040-P, has that additional ground wire since the ground in the factory connection point is insufficient for the Tekonsha controllers. The Hayes harness # HA81785-HBC only uses the factory ground so no additional ground is needed for the controller to operate effectively and properly.
    view full answer...

  • Brake Controller Fit and Compatibility for a 2016 Jeep Grand Cherokee with Factory 7-Way
  • Yes the Hayes Blackbird Brake Controller # HA81726 will work for your 2016 Jeep Grand Cherokee, but you will need to use the adapter # HA81796-HBC to plug into your vehicles wiring. Can I offer one bit of advice? Instead of going with a Time Delayed Brake Controller I would instead suggest a Proportional Controller like the P2 # 90885 with adapter # 3045-P. The P2 is a proportional brake controller which means it senses how the tow vehicle is slowing or stopping and applies the trailer's
    view full answer...

  • Parts Needed to Install Hayes Blackbird Trailer Brake Controller # HA81726 in 1994 Chevrolet Blazer
  • To install the Hayes Blackbird Trailer Brake Controller # HA81726 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
    view full answer...

  • With Hayes Blackbird Brake Controller Installed theres a Ringing in Truck When Truck is Turned Off
  • I spoke with my contact at Hayes about the issue you are having with the Blackbird brake controller # HA81726. The problem you are having is not something they have come across before. I do have some recommendations though that you can follow to hopefully find where the issue is coming from. First to determine if it is the controller disconnect it from the tow vehicle. If the issue stops then it is the brake controller. If it is the brake controller then it is either a bad controller
    view full answer...

  • Recommended Stoplight Circuit to Install a Brake Controller in a 1979 Ford F150
  • You should be totally fine installing a brake controller in your 1979 Ford F150 by using the brake pedal switch as the stoplight switch for the controller. You will just want to find the circuit that only sees voltage when the brakes are applied and none when not and you would be fine. You would want to use a circuit tester like part # PTW2993. I attached an FAQ article on installing a brake controller from scratch that should be very helpful for you.
    view full answer...

  • Troubleshooting Brake Controller that Powers Off and On Constantly
  • It sounds like you have an intermittent short on either the power or ground wire of your Blackbird brake controller part # HA81726 and it is constantly shutting off and powering on. Check the attachment point for the black and white wires of the controller to see if they are making a secure connection as it sounds like one of the wires is loose. I also attached a help article on brake controller installs for you to check out as well.
    view full answer...

  • Brake Controller Wiring Needed to Move Hayes Blackbird Brake Controller From 2002 to 2004 Silverado
  • Trailer Brake Controllers aren't vehicle specific, so they can be used on just about any vehicle. The brake controller wiring adapters are vehicle specific. The 2002 and the 2004 Chevy Silverado use a different wiring adapter, so the adapter you currently have wouldn't work in the 2004 Silverado. In order to install your # HA81726 Hayes Blackbird brake controller into your 2004 Silverado, you'll need the correct brake controller wiring adapter which is part # HA81780-HBC. I've linked
    view full answer...

  • Is An Adapter Needed To Install the Hayes Blackbird On A 1996 Ford F-250 With Tow Package
  • Yes, the Custom Wiring Adapter for Hayes Brake Controllers part # HA81783-HBC is required to install the Hayes Blackbird Trailer Brake Controller part # HA81726 on your 1996 Ford F-250. The plug you will need to access for the above adapter will be located under your dash, near the emergency brake pedal.
    view full answer...

  • Wiring Adapter for Hayes Lemmerz Energize III Brake Controller on a 2012 Chevrolet Suburban
  • The adapter you are looking for is the # HA81789-HBC. This universal harness will need to be hardwire installed for your 2012 Chevrolet Suburban. Hayes does not offer a wiring harness that will plug into the brake controller port under the dash, if your vehicle has one. I have attached a Help Article on installing a brake controller on your vehicle for your convenience.
    view full answer...

  • 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
    view full answer...

  • 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
    view full answer...

  • 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
    view full answer...

Info for these parts were:

Expert Research:
Jackie C
Expert Research:
Michael L
Edited by:
Lindsey S
Expert Research:
Michael H
Expert Research:
Jameson C
Updated by:
Adele M
Expert Research:
Adam R
Installed by:
Cole B
Expert Research:
Jeffrey L
Written by:
Tammy D
Photos by:
Zach O
Updated by:
Kristina F
Updated by:
Matthew E
Updated by:
Laura H
Updated by:
Sarah W

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