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  1. Trailer Brake Controller
  2. Honda
  3. Pilot
  4. 2016
  5. Hayes
Hayes Syncronizer Trailer Brake Controller - 1 to 2 Axles - Time Delayed

Hayes Syncronizer Trailer Brake Controller - 1 to 2 Axles - Time Delayed

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Hayes trailer brake controller for your 2016 Honda Pilot are available from etrailer.com. Installation instructions and reviews for your Honda trailer brake controller. Expert service, and great trailer brake controller prices. etrailer.com carries a complete line of Hayes products. Order your Hayes Syncronizer Trailer Brake Controller - 1 to 2 Axles - Time Delayed part number HA81725 online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (73)
  • Q & A (0)
  • Photos

Hayes Trailer Brake Controller

  • Electric
  • Up to 2 Axles
  • Time Delayed Controller
  • Hayes
  • Under-Dash Box
  • Dash Mount
  • Automatic Leveling
  • Indicator Lights
  • Up to 360 Degrees

This time-delayed brake controller has a straightforward design that makes it easy to use. Includes an LED indicator and manual override. Activates brakes with a preset intensity.


Features:

  • Brake controller activates trailer brakes with preset intensity
  • Adjustable power output lets you select the amount of braking force
    • Thumbwheel located on front of module for easy access
  • Red LED indicator on front of unit illuminates when trailer's brakes are applied
    • Light glows brighter as power output increases
  • Slide-bar manual override is within easy reach for controlling trailer sway or stopping in emergencies
  • Built-in safeguards protect your vehicle and your trailer
    • Current limiter protects vehicle from shorts in the trailer wiring
    • Hazard flasher immunity prevents pulsing of the brakes when flashers are activated
  • Dependable solid-state construction
  • Quick and easy installation with no mounting restrictions
    • No need to mount level - install anywhere at any angle
    • Mounting bracket and hardware included
    • Plug-in, vehicle-specific brake control adapter (sold separately) available for select vehicles to reduce installation time
  • Made in the USA


Specs:

  • Application: trailers with up to 2 axles (4 brake assemblies)
    • Compatible with electric brakes only
  • Dimensions: 5-1/4" long x 3-1/8" wide x 1-1/4" tall
  • 3-Year limited warranty


Built-In Controls on the Syncronizer

Syncronizer Controls

Power Output Control

Braking output is the maximum amount of power that will be applied to your trailer's brakes. How much braking output you need is determined by the weight of your trailer; a heavier trailer will need more power to bring it to a stop. You want to set the braking output as high as you can without locking up the brakes. Once you've set up the brake controller the first time, you shouldn't need to adjust the settings until the trailer load changes, you switch trailers, or road conditions change. Use the thumbwheel on the left of the module to change your settings.


Red Indicator Light

The red LED indicator light illuminates when the trailer brakes are applied. This light glows brighter as the power output to the trailer brakes increases.


Slide-Bar Manual Override

The Hayes Syncronizer keeps the manual override within easy reach on the front of the module, great for stopping sway or controlling your trailer's momentum in emergencies. Push the slide-bar lever to activate the trailer's brakes and brake lights without you having to apply the brakes on your tow vehicle, perfect for limiting trailer movement while you're cruising.


Hayes Syncronizer review

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. Your mounting options are limitless, so long as you can still easily access the controller and manual override.


If your vehicle already has a plug-in brake controller wiring harness, just connect the unit to it. Otherwise, you will need to purchase a vehicle-specific wiring harness (sold separately) to plug into. If a harness is unavailable for your vehicle, hardwiring will be necessary.


Installation Accessories

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.


Note: If a custom brake control wiring adapter is not available for your vehicle, a 20-amp circuit breaker (sold separately) may be required for installation.


Time-Delayed Braking

What is time-delayed braking

The Hayes Syncronizer comes equipped with time-delayed braking. Every time you apply the brakes in your vehicle, a signal is sent - via the brake switch - to the Syncronizer. 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. The amount of braking power (output) can be adjusted to suit your preference, the road conditions, the type of trailer, and the weight of your load. To determine which levels are best for your application, test your towing setup and choose what feels right.



81725 Hayes Synchronizer Electric Brake Controller - Time Based

Item # HA81725

Installation Details HA81725 Installation instructionsAlternate Instructions HA81725 Installation instructions

Customer Satisfaction Score:


Customer Reviews

Hayes Syncronizer Trailer Brake Controller - 1 to 2 Axles - Time Delayed - HA81725

Average Customer Rating:  4.7 out of 5 stars   (73 Customer Reviews)

This time-delayed brake controller has a straightforward design that makes it easy to use. Includes an LED indicator and manual override. Activates brakes with a preset intensity.

by:

No threaded inserts in unit and screws for attachmen, guess you get what you pay for

Etrailer Expert

Katrina D.

5/14/2024

I am sorry that you are missing the hardware for this brake controller. Can you please confirm what you are missing?

Randall S.

5/16/2024

@KatrinaD Hello, yes the brake controller, they are screws, self tapping, but no threads in controller. They just tap into plastic which is easy to strip out.
Etrailer Expert

Katrina D.

5/16/2024

@RandallS Oh I see now, Randy. Thank you for this information. I have looked into the brake controller installation, and unfortunately, that is just how they arrive out of box (with no threaded inserts). I am sorry this information was not made clear on the product page. Are you actually missing the screws? Or did they arrive, but it wasn't clear that the threads needed to be added to the controller upon arrival?


by:

Super fast delivery and easy plug and play installation. Would highly recommend



by:

Nice product and very easily installati on.



by:

Great price, no delay as it came the same day as promised. Feel very comfortable dealing with etrailer !



by:

Super easy to install and the additional information they provided for my specific vehicle made it possible for me to have every piece necessary for a seamless installation.



by:

Splicing the wires was no problem. Instructions were good. The only recommendation that I will give is that you trash all screws with flat screw driver heads. I also opted for bolts, nuts & washers for attaching the bracket.



by:

I think it will be a good brake controller, I have not had a time delayed on before.



by:

works great



by:

Original supplied item was defective, however Hayes customer service immediately sent another unit and it works great. With the addition of a small removable slip in bracket for the console of my 2012 GMC 1500 Crew Cab and the wiring adapter, I can simply plug and play when I need the controller as opposed to a permanent installation that I have in my other pickup.



by:

Installation was simple and straightforward. Took less than 30 minutes from start to finish.



by:

Looks good!



by:

Works well. I like the delayed brake activation, it seems to be a smoother transition. The custom harness makes installing this controller easy and FAST. Love buying Made in the USA products and etrailer.com has a lot of them.



by:

easy to install. Brakes tested good to trailer. I used self taping screws to mount brackets, rather than the bolts and nuts that it came with.It was to difficult to get my hands in position to use bolts and nuts (no big deal).



by:

This is the 2nd one of these I’ve bought. I like the time delay application to the brakes. Always will try to buy products made in the USA. The price went up since I bought this same controller 1 1/2 years ago.



by:

Installed in 10mins in 2018 ram 1500 ecodiesel, have not used with trailer yet. Seems good for price, mounting bracket could be made a little better. Good service from e trailer



by:

Good controller at a good price. Works as expected. Fast shipping at standard rate. This controller was installed in an 08
Sprinter camper with the help of the on line video from etrailer.
Thanks,
Gary



by:

Fit perfectly. Followed instructions and it works as it should. Great product at a great price.



by:

Was easy to install and adjust. Works great applying breaks to my single axle dump trailer.



by:

Installed in 10 minutes. Works excellent and combined with the wiring adapter was a simple plug and play.



by:

The trailer seems to be holding up just fine. It was a good investment for my small business and I'm thinking about buying another from you.



by:

deliverd on time. and plugged right in thanks



by:

super fast delviery great product pluged right in

Duncan

6/10/2020

Best controller out there



by:

First time user on eTrailer. Great website and easy to use. With my parts selected the site suggested the quick connect wire kit for my vehical. This made installation a breeze.



by:

My Hayes Brake controller was as described, Easily wired,mounted reasonably price,



by:

Great service! Fast delivery! Would order from again!


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Show More Reviews

See what our Experts say about this Hayes Trailer Brake Controller

  • Recommended Custom Wiring Adapter for Hayes Brake Controllers on a 2016 Ram 1500
    Yes, it will. The Custom Wiring Adapter for Hayes Brake Controllers item # HA81795-HBC will allow you to connect the Hayes Syncronizer Trailer Brake Controller item # HA81725 to your 2016 Ram 1500. The harness plugs in to the factory connector located above where you right leg would be as you're sitting in the driver's seat.
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  • Which Brake Controller Wiring Adapter Harness for 2011 Lexigton RV on Ford E-450 Chassis
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  • Parts Needed to Install Brake Controller in a 2016 Ford Transit
    To install a brake controller in your 2016 Ford Transit Connect tou will need to start with a 4-way (if you do not have one). For that you would want the # C56218. 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...
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  • Troubleshooting Hayes Syncronizer Trailer Brake Controller
    That is not normal. The Hayes Syncronizer Trailer Brake Controller - 1 to 2 Axles - Time Delayed # HA81725 should not give off any smell and should not be activating the brakes enough to cause smell if installed and adjusted properly. I've attached a video of this installation for you to reference. When installed correctly, this unit should be adjusted for sensivity. This conroller has a red LED indicator on front of unit that illuminates when trailer's brakes are applied. This light...
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  • What Functions do the Wires on the Hayes Syncronizer Trailer Brake Controller # HA81725 Connect to
    Of course! The Hayes Syncronizer Trailer Brake Controller # HA81725 has 4 wires on it that connect to the following functions: Blue - Brake Signal Output Black - 12V Power from Battery White - Ground Red - COLD Side of Stop Light Switch (only gets hot when brake pedal is pressed) If you let me know what vehicle that you are installing it on I can check to see if there is a plug-in adapter so that you don't have to cut the connector off of your tow vehicle shuld one exist.
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  • What Does a CL or cl Code Mean on a Brake Controller
    I did some research and found that on some brake controllers, the "cl" code stands for Current Limit. This indicates that the brake controller has sensed a power requirement greater than its recommended output. This could result from an intermittent short to ground, a faulty brake magnet, or too many brakes connected to the controller. Some brake controllers like the Hayes Engage, # HA81760, are designed for 2 - 6 brakes (up to 3 axles). But others like the Hayes Synchronizer, # HA81725...
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  • Wiring Harness Recommendation for Installing Hayes Brake Controller in 2014 GMC Sierra 1500
    Easiest solution would be the brake controller install harness part # HA81798-HBC which is a confirmed fit for your 2014 GMC Sierra 1500 and is designed for use with the Hayes Syncronizer # HA81725. This would plug in on your truck in place of the wiring harness you have found. Aside from that we don't know the wire color functions of your truck so you'd have to test them individually with a tester like part # PTW2993.
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  • Where is Brake Controller Install Wiring on 2012 Chevy Tahoe
    I attached a picture that shows what the brake controller install wiring looks like on your 2012 Chevy Tahoe. I also attached a help article on the install process for you to check out as well.
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  • Wiring Harness to Connect Hayes Syncronizer Brake Controller # HA81725 to 2005 Dodge Ram 1500
    The existing wiring harness you have used to connect your Hayes Syncronizer Trailer Brake Controller # HA81725 to your 2007 Dodge Dakota will also work to install this unit in your 2005 Dodge Ram 1500. The harness is part # HA81782-HBC and it plugs in between the hardwired connector at the back of the controller and the connection port under the dash on your Ram 1500. The Hayes Syncronizer brake controller # HA81725 is a time-delayed type as opposed to a proportional type brake controller....
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  • Wire Harness Needed To Install A Hayes Syncronizer Trailer Brake Controller In A 2023 Ford Bronco
    There unfortunately isn't a plug-and-play wire harness to connect your Hayes Syncronizer Trailer Brake Controller # HA81725 to your 2023 Ford Bronco so you'll have to use the universal splice-in wire harness # HA81789-HBC. This harness will need to be wired in the follow order: Black: 12v power White: Ground Blue: Trailer brake output Red: Bronco cold side of Brake Light Switch If your Bronco is a base model without the signature LED lighting then the cold side of the brake light switch...
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  • Wiring Colors for Kelsey Hays Brake Controller 81739
    Your old Kelsey Hays brake controller uses the standard wiring colors for brake controller install. The red goes to the stoplight circuit, the black goes to the 12 volt power supply, and blue goes to the trailer connector as it's brake output.
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  • Harness Needed to Install Hayes Brake Controller in 2017 Ford F-150
    All you need to install the Hayes Syncronizer part # HA81725 in your 2017 Ford F-150 is the custom install harness part # HA81794-HBC which plugs in under the truck dash and you'd be set.
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  • Why Does Hayes Syncronizer Brake Controller HA81725 Not Light Up When Pedal is Pressed
    The display on the Hayes Syncronizer Trailer Brake Controller # HA81725 should illuminate both when you press the brake pedal and when you use the manual override lever. If it does not light up when you press the brake pedal then either there is a problem wit the red wire's connection to the brake light circuit or you have the power set so low that the display does not light up. The controller will apply full power with the manual lever but with the brake pedal it will illuminate only...
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  • Uninstalling Hayes Syncronizer Brake Controller From 2014 Ford Explorer
    To disconnect the Hayes brake controller you can simply unclip the wiring connection behind your trailer brake controller and tuck it out of the way. Then you can remove the brake controller from it's mount and either discard it or sell it. It will not in any way effect the braking on your vehicle. It only captures the brake light signal and then sends power to a trailer with brakes. Removing it will have no impact on your vehicle but only on your trailer towing ability.
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  • Hayes Brake Controller Install Harness Recommendation for 2014 Dodge Ram
    To install a Hayes Syncronizer Brake Controller part # HA81725 in your 2014 Dodge Ram you would need the install harness part # HA81797-HBC which is a confirmed fit for your truck.
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  • Correct Adapter for Hayes Brake Controller on 2018 Ram 1500
    The correct wiring adapter for a 2018 Ram 1500 using a Hayes brake controller such as the Syncronizer # HA81725 is the Custom Wiring Adapter # HA81795-HBC.
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  • Red Light Not Illuminating On Hayes Syncronizer Trailer Brake Controller in 2002 Chevy Silverado
    The red light of the Hayes Syncronizer Trailer Brake Controller part # HA81725 should only illuminate when the vehicle's brakes are depressed which activates the trailer brakes. If your not getting the red light when you depress the brake pedal it doesn't sound like the brake controller has power. It sounds like you are using the hayes brake controller adapter wire part # HA81781-HBC, you may want to check the fuses in the Chevy to make sure all of the factory tow package fuses are present....
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  • Red Light of Hayes Syncronizer Comes on When Applying Brakes with No Trailer Connected
    Yes, the red light on the Hayes Syncronizer Trailer Brake Controller # HA81725 will come on whenever you apply your tow vehicle's brakes, even when no trailer is connected. However, no power is used when there isn't a trailer detected.
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  • How to Install Brake Controller in a 2004 Dodge Ram with 7-Way
    If the 7-way is factory on your 2004 Dodge Ram the install harness part # HA81782-HBC that you referenced would be the correct product to use to install the # HA81760. To see where the harness should be on your vehicle check out the video I attached that shows a similar brake controller and harness being installed in a vehicle like yours. The harness should be under the dash near the emergency pedal. If not, then you will have to hardwire the controller to your vehicle/7-way. For a...
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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 controller,...
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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 bike's...
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  • Wiring Adapter For a Hayes Syncronizer Trailer Brake Controller to 2001 Ford F-150 With Factory Tow
    To connect the Hayes Syncronizer Trailer Brake Controller # HA81725 on your 2001 Ford F-150 with the factory tow package you will need the Wiring Adapter # HA81783-HBC. This adapter will connect to the controller and has the Ford factory connector on the other end for a plug and play connection.
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  • Wiring Harness for Installing HA81725 Hayes Synchronizer Brake Controller on 1998 Ford E350 Van
    We offer the Ford-specific Hayes brake controller wiring harness as part # HA81783-HBC. One end of the harness plugs into the connector under the dash, the other plugs into the pigtail exiting the rear of the Hayes # HA81725 Synchronizer brake controller. The brake control connector on your E-series van is located either under the left side of the dash or next to the center console. It will be in the very corner where the floor board, firewall and the left kick panel come together. This...
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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
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Jameson C
Employee Adam R
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Adam R
Employee Sarah H
Expert Research:
Sarah H
Employee Lindsey S
Edited by:
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Employee Joshua S
Video by:
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Employee Jacob T
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Employee Dustin K
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Employee Chris R
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Employee Kathleen M
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