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  1. Tow Bar Braking Systems
  2. Mercury
  3. Topaz
  4. 1987
  5. Brake Buddy
FITS 1987 Mercury Topaz
Brake Buddy Classic 3 Portable Flat Tow Brake System - Preset

Brake Buddy Classic 3 Portable Flat Tow Brake System - Preset

Item # HM39494
Retail:$1,374.00
Our Price: $1,166.18
You Save: $207.82
Tow Bar Braking Systems
Confirmed to Fit
1987 Mercury Topaz

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Call etrailer.com at 1-800-940-8924 for expert service. We are your Mercury tow bar braking systems experts, and offer a great price. etrailer.com carries a complete line of Brake Buddy products for your Mercury Topaz 1987. Brake Buddy Classic 3 Portable Flat Tow Brake System - Preset part HM39494 from Brake Buddy can be ordered online at etrailer.com. Complete tow bar braking systems installation instructions and technical support.
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1987 Mercury Topaz - Brake Buddy Classic 3 Portable Flat Tow Brake System - Preset

  • Pre-Set System
  • Air Brakes
  • Air Over Hydraulic Brakes
  • Hydraulic Brakes
  • Brake Systems
  • Portable System
  • Brake Buddy

This portable unit gets you smooth braking without a complex installation. Senses the RV braking and applies the car's brakes at an intensity preset by you. Easy to swap between multiple cars; settings adjust for smooth braking for any size car.


Features:

  • Applies towed vehicle's brakes with your chosen preset intensity
    • Detects deceleration with internal inertia sensor and triggers braking system
    • Prevents false braking with terrain-sensing technology
  • Swaps easily between multiple towed vehicles
    • Requires a second vehicle kit (BB59SR - sold separately) for each alternate car
  • Adjusts to fit almost any car
    • Sits level for optimal performance thanks to adjustable feet
    • Clamps easily around almost any brake pedal
  • Eliminates potential damage from over-braking
    • Braking power settings ensure the brakes apply with appropriate force
  • Monitors braking with wireless receiver for convenience and safety
    • Mounts in cab of RV and plugs into 12V accessory outlet
    • Lights up when system is activated
    • Gives off loud alert in the event of a breakaway
  • Gets ready to tow with 1-touch auto start
    • Removes excess vacuum pressure from your car's brakes
    • Checks braking system for errors
  • Keeps car's battery fully charged with 15-amp battery charge line kit


Specs:

  • Compatible with hybrids and other cars with electric power-assist brakes
  • Dimensions: 19" long x 11-3/4" wide x 6-3/4" tall
  • Power draw at 12V: 15 amps
  • Range of adjustable feet: 1" - 4" tall
  • Power harness length: 36"
  • Weight: 9 lbs
  • 5-Year limited warranty


Do I Need a Braking System for Flat Towing?

A braking system is a must when towing a vehicle behind your motorhome. Without it, the weight of the towed car can create a safety hazard, strain your RV's brakes, and affect the warranty of both your car and motorhome. Most states legally require a supplemental braking system, so if you don't use one and you end up in an accident (which is more likely since your RV takes longer to come to a full stop), your insurance and liability headache just doubled. You also won't have any breakaway system; if there's an accidental disconnect, there's nothing to bring your car to a stop.


Pros of a Portable System

First, this system is great for DIYers, since you can get the basic installation done yourself. There will be some minor wiring to do under the hood and in the cab, but that's as complicated as it gets.


Second, it offers you a lot of flexibility. It's easy to move from one toad (towed vehicle) to another - or, if you think you'll likely get a new car down the road, you can easily set the Classic 3 up in your new toad.


How Does the Brake Buddy Work?

The Brake Buddy Classic 3 uses a built-in inertia sensor to detect when your flat tow setup begins to slow down as you apply the brakes in your motorhome. The moment the system recognizes the change in momentum, the actuator will press down the brake pedal of your toad with an intensity pre-set by you. This method of braking is not as sophisticated as a proportional system (since it's less precise and less customizable), but it is still effective while being more budget-friendly. Meanwhile, the terrain-sensing technology keeps the unit from activating when you go over bumps in the road, so it doesn't brake when it doesn't need to.


Compatible with Hybrids and Continuous-Power-Assist Brakes

If you're towing a hybrid or any car with continuous-power-assist brakes, all you have to do to be able to use the Brake Buddy is change the Braking Mode to Hybrid.


Setting Up the Brake Buddy Classic 3

You'll be setting up this portable unit in your toad every time you flat tow, so it's designed to be easy to do. And because it's so adjustable, it fits in almost any vehicle on the market.


Brake Buddy Classic Three Set Up

Step 1: Position the Brake Buddy

Shift the driver's seat back and set the Classic 3 on the floorboard. It's important that the unit sits as level as possible so the actuator has enough leverage to effectively push down the brake pedal, so adjust the feet of the unit to suit your floorboard if need be.


Brake Buddy Classic adjustable feet

Each foot can be adjusted easily by hand or with the included wrench. Twist it counterclockwise, pull it down to the right length, and then twist clockwise to lock it in place.


Quick Tip: It's best to remove your vehicle's floor mat before installation to keep the Brake Buddy from shifting.


Step 2: Attach the brake pedal clamp

Brake Buddy Classic brake pedal clamp

Next you need to get the clamp attached to the brake pedal with the Quick-Lock clevis. This adjustable clevis is designed to securely clamp onto the pedal regardless of its size or shape. Once you have the clevis fixed around the pedal, turn the lever to tighten it in place.


Step 3: Plug in and power up

Brake Buddy auto start

Plug your Brake Buddy into the connector you'll have installed under the dashboard and then press the Auto Start button. The system will automatically boot up to your saved settings and then check your brakes, pushing and releasing the brake pedal several times to remove built-up vacuum pressure from the brakes and prevent over-braking. It will also check for any connection errors. Then you're ready to flat tow!


Braking Power Settings

Braking power buttons

The braking power settings control how intensely the Brake Buddy Classic 3 applies your toad's brakes. When you are first setting up the Brake Buddy, choose the setting that's recommended for a vehicle of your toad's size:


Vehicle Type Recommended Setting
Cars and Compact SUVs Low
Mid-size Crossovers, Mid-size Pickups, and Small SUVs Med
Full-size SUVs and Pickups Hi


The setting should be high enough that your toad gives a slight tug at your RV when you brake. On the right setting, you won't be at risk of damage from over-braking. Once you've set the braking power, it shouldn't need to be changed unless you tow a different vehicle.


Wireless Braking Monitor

Brake Buddy monitor receiver

It's important to monitor your toad's braking to make sure that everything's working the way it should. With the Classic 3, it's also easy!


The wireless receiver plugs right into the 12-volt outlet in your motorhome's cab so you can keep it directly in view. It monitors 3 key things: braking, breakaway, and battery level. The receiver will light up every time the Brake Buddy activates so you know it's working. In the event of a breakaway, it will immediately set off a loud audible alert. Finally, it monitors your toad's battery, and will flash if the charge drops below 10 volts. It's just a really convenient way to stay ahead of any problems.


Brake Buddy braking monitor

The corresponding transmitter plugs right into the top of the Brake Buddy to wirelessly send signals to the receiver.


What You Need to Flat Tow

Flat towing can be a much more convenient way to take your car RVing with you than using a trailer or a tow dolly. It'll save you storage space both at home and at the campsite, and it takes less time and hassle to hook up.


To flat tow your vehicle, there are 5 basic components you're going to need: a tow bar, a base plate kit, a safety cable set, tow bar wiring, and a flat tow braking system.


For the RV Between the RV and Towed Car For the Towed Car
Hitch Tow bar Base plate
Wiring plug Safety cables Braking system
Wiring adapter cord Wiring kit/diodes

The custom-fit base plate installs on the frame of your toad so you can connect the car to your RV with a tow bar. Hook up safety cables between the vehicles to ensure that the toad does not separate from the motorhome if the tow bar becomes detached. Tow bar wiring syncs your vehicle's signal lights with your motorhome's tail lights, as required by law in most states. Finally, the flat tow braking system - also required in most states - activates the brakes in the toad when you hit the brakes in the RV, making for smoother, safer braking, and preventing wear on your motorhome.



39499 BrakeBuddy Digital Classic Three Portable Supplemental Braking System by Hopkins

Installation Details HM39494 Installation instructions

California residents: click here


Customer Satisfaction Score:


Customer Reviews

Brake Buddy Classic 3 Portable Flat Tow Brake System - Preset - HM39494

Average Customer Rating:  4.5 out of 5 stars   (204 Customer Reviews)

This portable unit gets you smooth braking without a complex installation. Senses the RV braking and applies the car's brakes at an intensity preset by you. Easy to swap between multiple cars; settings adjust for smooth braking for any size car.

by:

There is a design flaw with the connection cable. I pulled a tow car 10000 miles last year and had repeated disconnects from the brake buddy. I called for support and was told to use a small flat blade screw driver to spread the connection pins to keep the plugs in place. Im assuming this design flaw was known but put into production anyway by the answer given. This is my third break buddy and thy have made improvements but the old ones have worked flawless for me in the past.



by:
2017 Jeep Wrangler

I purchased this BB Classic 3 in October 2020 after my old BB Classic that I purchased in 2008 failed to hold pressure for the piston. I bought this for my 2017 Jeep Wrangler but due to (1) the depth and unevenness of the driver's floor board, (2) the seat adjustment bar prevents BB Classic 3 from pushing against the seat and (3) the adjustable legs are not long enough to reach the seat and brake pedal properly, the BB Classic 3 fails the auto start test every time due to not being able to level. I talked to Hopkins MFG techs several times trying to resolve the issue (wiring checks, power cord checks, etc.) but to no avail. This situation makes the BB Classic 3 dangerous to have in service because not being level it will think something is wrong and keeps the brake applied (piston will not retract after applying the brake). So after talking to other Jeep Wrangler owners I determined that a platform was needed for the floor board on which the BB Classic 3 could rest. I constructed a platform that was approximately 3" off the floor board and rested on the floor board under the seat and on risers toward the brake pedal. This platform is level on the floor board both length-wise and width-wise. After placing the BB Classic 3 on the platform with clevis and power cord installed and legs in the lowest position, I tested the auto start and had 8 successful tests in a row!!! Also the brake away test was successful too. I still need to make a short drive test while in tow behind the motorhome. Hopkins really needs to advise customers that the Classic 3 will not work properly as is on a 2017 Jeep Wrangler due to the configuration of the driver's side floor board.

Etrailer Expert

Jenny N.

10/21/2021

I appreciate the innovative solution to allow the Brake Buddy to work for your 2017 Jeep Wrangler. I spoke with Hopkins who did advise that it is ok for the Brake Buddy to rest against the base of the rails under the front seat.



by:
Ford Ranger

Works great! I use this BB Classic to tow a '22 ranger, easy to install. I'm glad I made the choice to use the Brake Buddy Classic 3 instead of the other options. By using this unit, I don't violate the integrity of the vehicle electronics and intricate wiring.
I highly recommend this product.



by:

Just follow the instructions and it's an easy set-up. It does its job on the road. If there was anything negative, it would be where to store it when not in use. But, that has nothing to do with its performance. Thank you etrailer for making so many things available to us!

Steven

10/17/2023

One of the legs busted.

Etrailer Expert

Mike L.

11/8/2023

The unit is protected by a 5-year warranty, call us for warranty information, please.


by:
2001 Jeep TJ

I used this to connect my motorhome to my towed vehicle and it worked out great! Definatly liked that it was a heavy duty cord with strong connectors!



by:
Nissan Versa

The system was fairly easy to install. The only fault was the part that clamps to the brake pedal was larger then my pedal. The car that I'm towing is a Nissan Versa. I ended up using a screwdriver under the pedal to give it something to clamp onto.



by:
2011 Honda CR-V

The system has great potential but I don't know if it is actually working. The transmitter in my Rv's 12 volt socket is suppose to turn red when I hit the breaks but it never turned red on a full 8 hour trip. It turns red when I hit the auto button or pull the pin from the breakaway box but never while actually driving. I have no idea if it works. That's why I give it two stars. I just bought this system this October 2023 from etrailer (Order # 120078365) and I'm disappointed. I may return this product soon because I hate when things advertised to work do not work.



by:

Works great. etrailer support went far beyond the sale. I had an issue, but Lauren was fantastic and resolved my issue promptly. I would highly recommend etrailer for all your needs and the brake buddy as an affordable solution to your towing needs.



by:

Brake Buddy 3 is the best.
super easy
to install and simple to set up. eTrailer was very helpful to get this ordered and also quick to respond to my questions.



by:

Pretty involved to set up disconnect every time.Cost effective. Took a while to get it working properly



by:

Works great with our RV. NO issues.



by:

It is easy to work with and very sturdy



by:

It works just like it is supposed to. Thanks for your help



by:
Chevrolet Equinox

This kit worked out great for my 2022 Chevy Equinox. I like how it has separate side plates, which make it easier to attach the main bar. The points where it attaches to the frame seem plenty secure. It is important to watch the videos provided by etrailer as Ryan is very thorough and has good tips for installing. I would also recommend installing additional wiring while having the front end off. Overall, I was able to complete in my driveway. The hardest part was sorting out the wiring for whatever braking and tail lights you decide on. William S helped me pick all the necessary components needed for flat towing behind my Jayco RV. I am looking forward to a summer of camping and having more freedom to explore the area, now having a car.



by:

Everything is a perfect fit



by:

The unit worked as it should. The original brake pedal clamp was an awful design and near impossible to clamp, after a complaint to the manufacturer they sent me the new design clamp and a new power cable. The unit seems big for what it does but funtions well.

Etrailer Expert

Katrina B.

3/28/2022

With Braking systems, they are build to fit a variety of different types of brake pedals. Which means, they will fit most, but not all brake pedals.

Deck

3/20/2023

Been working fine, no issues and about 20,000 miles.



by:

I have used Brake Buddy before and would purchase it again. It’s easy to install and setup is a snap with the “auto” start button. The handle folds down and it stores nicely in our coach.



by:
Jeep

Great products and fast delivery, that’s why I keep coming back to Etrailer. I’ll be using my Brake Buddy Classic 3 in my Jeep Gladiator that I plan on towing behind my class C motor home. Thanks again Etrailer for having what I needed at a great price.



by:

The instructions for wiring could be more clear and more wire should be included. Other than that it was great. Thank you



by:
2020 GMC Sierra 2500

Work as described



by:

The Brake Buddy works well

Dennis

4/8/2023

Very well



by:
Jeep Wrangler

We have been using this product for over a year now. Love how easy it is to set up. We have had zero issues with this breaking system. Towing a Jeep Wrangler 4dr behind a class c motorhome.



by:

Great service.



by:

I think the instructions in general need to be upgraded. When they tell you to purge the system they have you purge it while attached to the brake pedal. This did not purge the system. You need to purchase where it can fully extend. They also have a blackwire going to the positive terminal Seems like they need to get their color coding to an automotive standard I also had an issue with the power plug. It would intermittently turn the brake buddy on and off It seemed to be A bad wire inside the actual cable. The manufacture is sending a new one



by:
2001 Saturn S Series

Fairly straightforward wiring. The only thing is that the parts do not match the instructions.


25
205
Show More Reviews

See what our Experts say about this Brake Buddy Tow Bar Braking Systems

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    Image 1 for Image 2 for
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  • Is the Brake Buddy Supplemental Braking System Compatible with Blue Ox Base Plates?
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  • Brake Buddy 3 Vehicle Battery Charging Capabilities
    The Brake Buddy Classic 3 Portable Supplemental Braking System Item # HM39494 has a charge kit # BB54FR included that will keep your battery charging while you tow. The Brake Buddy 3 will alert you if your battery ever falls to 10v.
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  • What Flat-Tow Setup do I Need for My 2019 Ford Fusion Energi Titanium?
    If you are looking at a Roadmaster tow bar to flat-tow your 2019 Ford Fusion Energi Titanium, I recommend the Roadmaster Falcon All Terrain, Non-Binding Tow Bar # RM-522. The Falcon allows for you to easily release your vehicle even in uneven ground and simply slides into the RV's hitch receiver without the need of a ball mount. In addition to the tow bar, you need a base plate, a tow braking system, safety cables, and vehicle tow light wiring. For those components, I recommend the following...
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  • Troubleshooting No Power to Brake Buddy Classic 3
    The problem you're talking about on your Brake Buddy Classic 3 # HM39494 could be a warranty issue but I have something for you to double check first. You mentioned that the unit has power and so I recommend checking the fuse to see if power is getting past the fuse to the brake system or if it's stopping there. If replacing the fuse fixes the issue then you'll be good to go, but if that doesn't fix anything you'll want to reach out to Brake Buddy about a warranty claim for internal issues...
    view full answer...


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Bradley B
Employee John A
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John A

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