Hayes Syncronizer Trailer Brake Controller - 1 to 2 Axles - Time Delayed
(73 reviews)
Price: $49.14
Hayes Syncronizer Trailer Brake Controller - 1 to 2 Axles - Time Delayed
Item # HA81725
Retail:$79.02
Our Price: $49.14
You Save: 38%
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- All Info
- Reviews (73)
- Q & A (0)
- Photos
Hayes Trailer Brake Controller - HA81725
- Electric
- Time Delayed Controller
- Up to 2 Axles
- Hayes
- Indicator Lights
- Dash Mount
- Under-Dash Box
- Automatic Leveling
- 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
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
Installation Details
Alternate Instructions
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
- Wrong item was ordered
- Product did not meet expectations
- Arrived Damaged
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: Randall05/12/2024
No threaded inserts in unit and screws for attachmen, guess you get what you pay for
by: Rodney04/07/2024
Nice product and very easily installati on.
by: Ryan H04/08/2024
Super fast delivery and easy plug and play installation. Would highly recommend
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: 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: Jonas08/04/2023
Installation was simple and straightforward. Took less than 30 minutes from start to finish.
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: 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: Nick 04/24/2023
Fit perfectly. Followed instructions and it works as it should. Great product at a great price.
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: 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: 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: Joe 04/14/2021
Was easy to install and adjust. Works great applying breaks to my single axle dump trailer.
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.
by: Rob08/27/2016
Installed in 10 minutes. Works excellent and combined with the wiring adapter was a simple plug and play.
by: Richard 07/03/2023
deliverd on time. and plugged right in thanks
by: Duncan06/10/2019
super fast delviery great product pluged right in
Duncan
6/10/2020
Best controller out there
by: Wayne 11/18/2016
My Hayes Brake controller was as described, Easily wired,mounted reasonably price,
by: Dustin Hiett02/08/2015
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: Timothy 08/28/2022
Great service! Fast delivery! Would order from again!
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See what our Experts say about this Hayes Trailer Brake Controller
- How to Install Brake Controller in a 2004 Dodge Ram with 7-WayIf 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...
view full answer... - Parts Needed to Install Hayes Syncronizer on 2001 Toyota Tundra with Factory 4-Way Flat ConnectorThank you for all of the info! If you already have a 4-Way wiring connector on your 2001 Toyota Tundra then you just need the Universal Wiring Kit # ETBC7 and the Wiring Adapter # HA81789-HBC to install your father's Hayes Syncronizer Trailer Brake Controller # HA81725. The universal wiring kit plugs into your 4-Way and then comes with the extra wiring and connectors needed to route the wiring to your battery and cab to make the 7-Way fully-functional. I have attached a video of the ETBC7...
view full answer... - Troubleshooting Cruise Control Not Working After Brake Controller InstallSounds 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...
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- Wiring Adapter to Install Hayes Synchronizer # HA81725 Brake Controller in 2008 Toyota TacomaHayes 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 only...
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- Where is Brake Controller Install Wiring on 2012 Chevy TahoeI 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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- 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,...
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- Plug and Play Wiring Adapter For Hayes Syncronizer Brake Controller On 2022 Chevy Silverado 1500 LTDThe 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... - Red Light of Hayes Syncronizer Comes on When Applying Brakes with No Trailer ConnectedYes, 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.
view full answer... - Recommended Hayes Trailer Brake Controller Wiring Harness for 2003 GMC Sierra SLT with Tow PackageFor your Hayes Syncronizer Trailer Brake Controller # HA81725 on your 2003 GMC pickup with tow package, you will want wiring adapter # HA81780-HBC. This will plug into your junction box beneath your vehicle's dash. That is all you will need as you stated.
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- Wiring Harness Recommendation for Installing Hayes Brake Controller in 2014 GMC Sierra 1500Easiest 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.
view full answer... - Parts Needed to Install Brake Controller in a 2016 Ford TransitTo 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...
view full answer... - Wire Harness Needed To Install A Hayes Syncronizer Trailer Brake Controller In A 2023 Ford BroncoThere 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...
view full answer... - Does Hayes Syncronizer Brake Controller Have Time to Full IntensityThe Hayes Syncronizer Trailer Brake Controller # HA81725 does not have a time from brake activation to full intensity. Reason is this depends on the amount of power you set the controller to.
view full answer... - Why Is My Hayes Brake Controller Only Getting 10v At the BrakesThe Hayes Syncronizer Trailer Brake Controller # HA81725 requires 12v to operate properly so since you're only getting 10v at the brakes that leads me to believe there is a wiring issue somewhere. You're going to need to go through your wiring, testing incrementally for voltage while looking for any damaged or exposed wires. If that's all good, I'd double check the wire is 10 gauge # 10-1-1 because smaller wire can cause also voltage drop. It's also a good idea to check your ground...
view full answer... - Why Does Hayes Syncronizer Brake Controller HA81725 Not Light Up When Pedal is PressedThe 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...
view full answer... - Will Hayes Syncronizer Brake Controller Work on a 2016 Ram 1500In the newer Rams the stoplight switch of yhe truck uses a lower voltage signal than most vehicles so only some controllers can be used. The confusion you have experienced with your local dealer and trailer shop is most likely stemming from that. We have confirmation from Hayes that their Syncronizer part # HA81725 will work on your 2016 Ram 1500 and all you would need to install it is the harness part # HA81795-HBC.
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... - Wiring Harness to Connect Hayes Syncronizer Brake Controller # HA81725 to 2005 Dodge Ram 1500The 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... - Custom Wiring Harness for Hayes Brake Controller in 2017 GMC Sierra 1500Your 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...
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- Brake Controller Compatibility with 2015 Audi Q7 TDI PrestigeThe Hayes Syncronizer Trailer Brake Controller -Time Delayed # HA81725 can be used on your 2015 Audi Q7. You will need to hardwire your controller, but I recommend using the wiring adapter # HA81789-HBC to allow you the quick connection so you can use this controller on other vehicles if desired. You will also need to use additional wiring as you pointed out. You will need to ask your authorized dealer for #1J0-972-782 housing (qty. 1) and #000-979-228 wire/terminal assemblies (qty....
view full answer... - Recommended Trailer Hitch and Wiring Harness for 2011 Ford E350 Van Towing Small Canoe TrailerWe have several choices that would be a fit for you, I'd recommend the Curt Class III receiver hitch, part # 13055. The hitch has a respectable 600 lb tongue weight/ 6000 lb towing capacity, so it'd be the perfect choice. The hitch is pretty simple to install, with no drilling required. For a trailer wiring harness, use part # 118551. For a ball mount, # AMSC2 would work very well. The coupler on your trailer will list the necessary trailer ball. For a 1-7/8 inch diameter ball, use part...
view full answer... - Which Brake Controller Wiring Adapter Harness for 2011 Lexigton RV on Ford E-450 ChassisThe brake controller connector is located behind a panel just to the left of the glove compartment, as shown in the provided photo. The wiring harness adapter used will depend on the brake controller you end up using. I see that you've looked at a Hayes Syncronizer # HA81725 brake controller. If you use a Hayes controller, you'd need the # HA81788-HBC adapter. For a Tekonsha or Draw-Tite, use # 3034-P or for a Curt controller, use # C51432. Rather than a time delayed controller like the...
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- Troubleshooting Hayes Syncronizer Trailer Brake ControllerThat 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...
view full answer... - 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.
view full answer...
Do you have a question about this Trailer Brake Controller?
Info for this part was:
Expert Research:
Mike L
Expert Research:
Jameson C
Expert Research:
Adam R
Expert Research:
Sarah H
Edited by:
Lindsey S
Video by:
Joshua S
Video Edited:
Jacob T
Video Edited:
Dustin K
Video Edited:
Chris R
Updated by:
Kathleen M
Updated by:
Laura H
Updated by:
Wilson B
Updated by:
Kristina F
Updated by:
Matthew E
Updated by:
Amanda K
Installed by:
Cole B
Written by:
Tammy D
Test Fit:
Ryan G
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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?