Hayes Syncronizer Trailer Brake Controller - 1 to 2 Axles - Time Delayed
Custom Wiring Adapter for Hayes Brake Controllers - Dual Plug
Part Numbers: HA81725,HA81794-HBC
Retail:$110.37
Our Price: $72.15
You Save: 35%
Hayes Syncronizer Trailer Brake Controller - 1 to 2 Axles - Time Delayed
part number: HA81725
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
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.
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
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
Custom Wiring Adapter for Hayes Brake Controllers - Dual Plug
part number: HA81794-HBC
Install your Hayes electric trailer brake controller quickly and easily with this custom wiring adapter. One end plugs into the controller, and the other plugs into the built-in port behind your vehicle's dash.
Features:
- Plug-in wiring adapter allows for quick, simple installation of your electric trailer brake controller
- No cutting or splicing required
- Custom connector end plugs into the built-in port behind the dash of your vehicle
- Opposite end plugs into the back of your electric brake controller
- Compatible with time-delayed and proportional brake controllers from Hayes
- Made in the USA
Installation of 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.
This adapter plugs into the built-in connector behind your vehicle's dashboard. To access this connector, first locate the instrument cluster finish panel in the center of the dash, near the driver's side. Carefully pry the panel out and undo the locking tabs to remove the panel. Plug the adapter into the mating connector in the large gray housing behind the panel.
No hardwiring is required to install this adapter. After you plug it into the factory port, you simply plug the other end of the adapter directly into your electric trailer brake controller. Because there are no wires to connect, installation is not permanent. You can unplug and remove your brake controller at any time to transfer it to another vehicle or securely stow it away.
81794HBC Hayes Dual-Mated Brake Control Wiring Harness - Ford
Replaces 81794-HBC
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
- Wrong item was ordered
- Arrived Damaged
- Product did not meet expectations
Customer Reviews
Hayes Syncronizer Trailer Brake Controller - 1 to 2 Axles - Time Delayed - HA81725
Custom Wiring Adapter for Hayes Brake Controllers - Dual Plug - HA81794-HBC
Average Customer Rating: 4.7 out of 5 stars (88 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. Install your Hayes electric trailer brake controller quickly and easily with this custom wiring adapter. One end plugs into the controller, and the other plugs into the built-in port behind your vehicle's dash.by: Randall05/12/2024
No threaded inserts in unit and screws for attachmen, guess you get what you pay for
by: Ryan H04/08/2024
Super fast delivery and easy plug and play installation. Would highly recommend
by: Rodney04/07/2024
Nice product and very easily installati on.
by: Don 02/06/2024
Great price, no delay as it came the same day as promised. Feel very comfortable dealing with etrailer !
by: Benjamin08/22/2023
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: Lawrence 09/07/2023
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: Dale10/25/2023
Easy to install. Clear instructions.,Works great.
by: Ed09/13/2023
I think it will be a good brake controller, I have not had a time delayed on before.
by: Rod 02/13/2024
works great
by: Bob P.04/10/2016
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: Budman08/15/2017
Ford
I, order wrong wire adapter by mistake, I called etrailer, and spoke to nice lady there and gave the number of the one I had ordered, she looked up what I needed and placed order while I was on the phone with her. Got the adapter and it was the correct one and works perfect. To help others Ford puts a hard shell in there wire to protect against short circuit, it has to be removed before you can plug any adapters into it.
by: John 06/29/2018
This harnress was exactly what I ordered. Very pleased as usual.
I have to add that for a while I was sure that I had received the wrong product. Then I watched an Etrailer install video and realized that the plug in my truck had an adapter attached that had to be removed before the harness could be plugged in. 5 minutes later I was done and ready to tow.
by: Jonas08/04/2023
Installation was simple and straightforward. Took less than 30 minutes from start to finish.
by: Larry 07/28/2023
Looks good!
by: Dylan 04/10/2021
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: Frank 11/16/2019
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: Dylan 09/26/2021
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: Dave 2018 ram 1500 eco 04/07/2019
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: Gary03/19/2015
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: Ron 12/28/2019
2019 Ford F-150
Etrailer was very helpful with all the info needed to buy the correct connecting cable for my Hayes brake control. Delivery was quicker than expected & of course the cable works as stated.
Great job again!
Thanks Etrailer!
by: Nick 04/24/2023
Fit perfectly. Followed instructions and it works as it should. Great product at a great price.
by: Joe 04/14/2021
Was easy to install and adjust. Works great applying breaks to my single axle dump trailer.
by: Rob08/27/2016
Installed in 10 minutes. Works excellent and combined with the wiring adapter was a simple plug and play.
by: Art 11/11/2020
Perfect adaptor for my brake controller to my truck.
by: Andrew Ammerman04/11/2017
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.
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Show More Reviews Ask the Experts about this Trailer Brake Controller
Do you have a question about this Trailer Brake Controller?
- Recommended Pigtail for a Hayes Syncronizer Brake Controller on a 2012 Chevy Tahoe
- Though 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... - 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.
view full answer... - 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.
view full answer... - 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.
view full answer... - How to Find the Brake Wire on a 2000 Chevrolet Express Van
- In order to find the brake wire under your dash, you are going to need a circuit tester like part # PTW2993. Then you are going to need someone to engage the brake on your 2000 Chevrolet Express Van as you use your circuit tester to see which is the brake wire. When you find the right wire, a light will glow on the circuit tester.
The wires you need to test are the bundle of wires coming out of the back of the brake pedal stop light switch. Use the circuit tester to find the hot wire
view full answer... - 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
view full answer... - Wiring Adapter to Install Hayes Synchronizer # HA81725 Brake Controller in 2008 Toyota Tacoma
- Hayes does indeed offer a brake controller wiring adapter that's compatible with the 2008 Toyota Tacoma that's equipped with the factory 7-way trailer connector, part # HA81785-HBC.
I've provided you a photo of what the connector that will plug in under the dash looks like. It's a four pin connector, and you can clearly see the pin-out in the photo I've edited for you.
Your factory connector under the dash will have 5 pins, but the aftermarket wiring adapters and brake controllers
view full answer... - Troubleshooting Cruise Control Not Working After Brake Controller Install
- Sounds like you connected the red (stoplight switch circuit) wire to the wrong circuit on your truck. When the cruise control on a vehicle starts acting up that is a tell-tale sign that the wrong circuit is being used for the red wire.
What you want to do is use a circuit tester like part # PTW2993 to test the wires near the brake pedal to find the circuit that only sees 12 volts when the brakes are applied and none when the brakes are released. Correcting this should take care of both
view full answer... - 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
view full answer... - Custom Wiring Harness for Hayes Brake Controller in 2017 GMC Sierra 1500
- Your Hayes Syncronizer Trailer Brake Controller - 1 to 2 Axles - Time Delayed # HA81725 is confirmed to fit your 2017 GMC Sierra 1500 using the custom wiring harness # HA81798-HBC. This adapter plugs into the port that is built into the electric junction box underneath your vehicle's dash. The black box is located to the left of the steering column, just above the carpet. To plug in the adapter, first remove the cover on the box. The adapter plugs into the first slot on the left, in the
view full answer... - 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.
view full answer... - 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.
view full answer... - 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
view full answer... - Plug and Play Wiring Adapter For Hayes Syncronizer Brake Controller On 2022 Chevy Silverado 1500 LTD
- The Custom Wiring Adapter # HA36FR will allow you to connect your Hayes Syncronizer Trailer Brake Controller # HA81725 to your 2022 Chevrolet Silverado 1500 LTD.
view full answer... - Brake Controller Install Harness for Hayes Synchronizer in a 2014 Chevy Silverado 1500
- To install the Hayes Brake controller part # HA81725 in your 2014 Chevy Silverado 1500 only requires you to use the install harness part # HA81798-HBC which is a confirmed fit.
view full answer... - Which Brake Controller Adapter for 2017 Nissan Pathfinder with Hayes Synchronizer
- You can use a Hayes Synchronizer # HA81725 in your 2017 Nissan Pathfinder using the plug and play adapter Custom Wiring Adapter for Hayes Brake Controllers - Dual Plug # HA81786-HBC. This will be the plug that goes from the car to the controller.
view full answer... - 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.
view full answer... - 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.
view full answer... - 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.
view full answer... - 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
view full answer... - Which Hayes Brake Controller Install Harness Fits 2015 Ford E-450 Cutaway Chassis
- The correct Hayes brake controller install harness that fits your 2015 Ford E-450 cutaway chassis is the part # HA81788-HBC and not the one you referenced as that fits newer models.
view full answer... - Recommended Hayes Plug in Brake Controller Adapter for a 2018 Ford F-150
- We sure do. To connect a Hayes brake controller to your 2018 Ford F-150 you will need the Custom Wiring Adapter for Hayes Brake Controllers item # HA81794-HBC.
view full answer... - Does Hayes Brake Controller Install Harness # HA81794-HBC Fit 2016 Ford F-150
- Yes, the Hayes brake controller install harness part # HA81794-HBC that you referenced is a confirmed fit for your son's 2016 Ford F-150.
The most popular brake controller used with this harness is the Hayes Genesis part # HA81790.
view full answer... - Troubleshooting Hayes Energize III+ Trailer Brake Controller Lights Up With Turn Signals
- This is quite strange so I'm not quite sure what the problem would be either. Since you used the # HA81794-HBC for installation I doubt anything with your installation is the problem. However, it wouldn't hurt to unplug the connectors and plug them back in to make sure they are seated properly.
I suppose there could be some kind of short in the wiring allowing power to transfer over and back to the brake controller triggering the LED light but that seems like a pretty slim chance. With
view full answer...
Info for these parts were:
Edited by:
Lindsey S
Expert Research:
Jameson C
Installed by:
Cole B
Written by:
Tammy D
Updated by:
Wilson B
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