Demco Hydraulic Brake Actuator - Drum - Zinc - 2" Ball - 7,000 lbs
(127 reviews)
Price: $247.54
In Stock
Demco Hydraulic Brake Actuator - Drum - Zinc - 2" Ball - 7,000 lbs
Item # DM72VR
Retail:$267.50
Our Price: $247.54
You Save: $19.96
In Stock
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- Reviews (127)
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Demco Brake Actuator - DM72VR
- Surge Brake Actuator
- Drum Brakes
- 2 Inch Ball Coupler
- 7000 lbs GTW
- Bolt-On
- No Lockout
- Straight Tongue Coupler
- Demco
Surge-type actuator features a corrosion-resistant composite master cylinder and durable zinc plating with a 120-hour salt spray rating. EZ-Latch coupler mechanism makes hookup a snap. Bolt-on application.
Features:
- Hydraulic actuator activates trailer's brakes when tow vehicle slows or stops
- EZ-Latch coupler mechanism for simple, secure hookup and disconnect
- Lets you hook up when latch is in closed position - just drop coupler over hitch ball and latch will snap into place
- Zinc plating offers corrosion resistance
- 120-Hour salt spray rating
- Composite master cylinder is durable and efficient
- Glass-reinforced nylon construction resists rust and corrosion
- Large reservoir provides increased capacity for brake fluid
- Automotive-style diaphragm cap creates completely enclosed system to help prevent contamination of fluid
- Large rear rollers allow for easy movement and smooth operation
- Breakaway included
- Snap hook on safety cable ensures secure connection to breakaway lever
- Heavy-duty steel construction with sturdy, reinforced outer casing
- Bolt-on installation
- Requires 2-1/2" x 4-1/2" Grade-5 bolts (not included) for mounting
- Made in the USA
Specs:
- Application: trailers with hydraulic drum brakes
- Ball size: 2"
- Gross towing weight: 7,000 lbs
- Maximum tongue weight: 700 lbs
- Mounting: straight, 3" wide trailer tongue
- Model number: DA70
- 1-Year warranty
Note: Because this actuator does not include a reverse lockout, it is recommended that you equip your trailer with free-backing brakes so that you can drive in reverse without the actuator triggering your trailer's brakes.
When you apply the brakes in your tow vehicle, deceleration occurs and momentum pushes your trailer toward the rear of your vehicle. With surge brake systems, the hydraulic actuator is triggered as your trailer moves forward, once your tow vehicle starts to slow down. When this happens, the actuator contracts, applying force to its master cylinder. This in turn supplies the necessary hydraulic pressure to engage your trailer's brakes.
EZ-Latch Coupler
This coupler features a simple-to-use latching mechanism known as the EZ-Latch. With this mechanism, hooking up is as easy as dropping the coupler over your trailer hitch ball. The latch does not need to be tugged or manually activated to allow the ball into the coupler socket, nor does it have to be secured in place. Just make sure that the coupler is properly lined up with the ball when you lower it, and the rest is automatic. Disengaging the coupler is just as effortless. Simply lift up the handle and the coupler socket will automatically release its grip on the ball.
The contoured, low-profile design of the latch handle helps protect the coupler from damage by allowing any potential hazards - from debris on the road to your ball mount backing into the coupler - to simply slide over the top. This helps prevent anything from getting under the latch handle and releasing the ball, and it can also limit any damage to the coupler should an impact occur
Unlike most couplers, which have a pin hole on the handle latch, the EZ-Latch coupler features a hole on the side of the coupler itself. Inserting a coupler lock through this hole will keep the latch from lifting, preventing disconnect and theft.
Sturdy, Corrosion-Resistant Construction
Made of sturdy steel, this hydraulic trailer brake actuator features a durable zinc coating that is designed to limit rust and corrosion. This zinc coat has a 120-hour salt spray rating. In addition, the composite master cylinder is made of corrosion-resistant glass-reinforced nylon to further ensure durability.
8705001 Demco DA70 Hydraulic Trailer Brake Actuator for Drum Brakes - 2" Ball Easy-Latch Drop Coupler 0 7,000 lbs
Replaces Demco DA86 and 8605001
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
- Wrong item was ordered
- Defective
- Product did not meet expectations
Customer Reviews
Demco Hydraulic Brake Actuator - Drum - Zinc - 2" Ball - 7,000 lbs - DM72VR
Average Customer Rating: 4.7 out of 5 stars (125 Customer Reviews)
Surge-type actuator features a corrosion-resistant composite master cylinder and durable zinc plating with a 120-hour salt spray rating. EZ-Latch coupler mechanism makes hookup a snap. Bolt-on application.by: Engineer5505/10/2024
This brake actuator was an easy replacement to my previous 1996 Tennessee boat Trailer actuator. I did have to get creative with the line plumbing do to the change in angle. Also needed to change the lock to a pin lock. I like the latching feature and overall quality. I would not hesitate to make this purchase again.
by: Christopher 05/10/2024
Perfect replacement for my body trailer. Actuator is alittle hard to prime with out a bench to set it on. But works great
by: Jim P04/22/2024
I bought this for a direct replacement of an Atwood surge brake actuator for drum brake application in which they no longer make. Ateoodpart # 85778 is obsolete now guys. This Demo DM72VR fit directly on my 3 inch tube tongue and bolt pattern was the same. Easy fix.
by: Kelvin02/12/2024
I traveled down to Texas from Canada only to find out that both my brakes an actuator are completely worn out. I was able to source the brakes locally but found out that the Attwood actuator no longer was available. I searched the internet and immediately etrailor came up with a solution. It was easy to order and have it shipped to me. They said it would take 3 days and it arrived as promised. I had it installed in about a 30 minutes. Very easy. The one thing is that nowhere does it say that I needed 4.5 inch bolts to mount it or instructions of how to bleed the actuator. I found this out by reading the reviews of this product. Otherwise I am very impressed with the product and the ease of following my order from start to finish.
by: Alan05/06/2022
I’ve owned this for 1 year now and have towed about 3,000mi at a 4K lb capacity - it works great and have had zero issues. Honestly this is the easiest hitching mechanism I’ve used, and there’s no need for a lock pin. Goes on smooth and releases easy every time. I highly encourage cutting off your old surge hitch and replacing it with this one, so much time saved with how easy it is. Even bleeding the brakes was a breeze by pulling the emergency lever by hand. Great product.
by: Travis06/05/2022
The hitch was good. The instructions weren't complete. There's no reference to how to release emergency lever. No hardware provided. For this price it should have. I used grade 8 bolt setup with washer, lock washer and lock nut. The install of brake valve was tricky. Overall time to change it was less than 20 minutes. Most of my time was spent installing brake line. For the trouble of an incomplete video demonstration, no hardware, and no clear instruction of emergency lever I'm giving it 3 stars. Overall the hitch worked and was a good upgrade.
by: James 07/04/2023
Received as expected, straight forward install to replace 30year old original on EZ loader boat trailer, I was skeptical as the price was less than most other options. Couldn’t be happier, EZ latch system works really well, no jamming of ball retainer when dropping the coupler on the ball, and very positive latching. Everything lined up perfect, there is reinforcing plates on the surface that runs on the sides of the tongue, at some point I will get 1/2 inch longer bolts so I can retain the lock washers, but after 45minutes was able to use trailer. Great product
by: Jon 02/09/2024
Fit perfect for attwood replacement
by: Ron R12/05/2023
Easy to install, big upgrade for us because it click ON auromatically
by: Bruce 09/21/2023
Arrived on time, the only issue was more on the manufacturer i think, the hitch did not have a safety pin
by: Jason12/13/2022
works great!
by: Mike05/20/2023
It wasn’t an exact fit, had to weld extensions plates seems to work ok
Jenny N.
5/24/2023
You certainly can weld on the actuator versus bolting it on. This Demco Actuator # DM72VR will fit onto a 3 inch wide trailer tongue. Welding it from the inside or the outside would be totally fine as long as it is done by a professional and the coupler has the needed room to move back and forth to activate the brakes.
by: Keith 05/30/2023
The brake actuator arrived ahead of schedule. It was easy to install and to bleed the brakes and works well.
by: Steven 06/15/2023
Delivery was fast and packaged well. I installed the new Actuator in 15 minutes (aleady purchased new hardware for install).
by: Jim 11/01/2023
Haven't connected the brae line yet, but the fit was perfect, removed 2 bolts and the old unit and the new one went on without any problem, bolt holes matched perfectly. Done in 5 minutes.
by: Ken03/10/2023
Good unit. Replaced a 35 year old prior unit so the hydraulic brake line did not line up. Three trips to Home Depot and I got the right adaptors to make it work.
by: Lon S.01/13/2023
Installation would be a whole lot easier if you let people know that the cap that is where the brake line connects is actually the bleeder for bleeding the master cylinder. Other than that,it was a piece of cake
by: Martin 10/08/2023
James answered all of my questions. I was told the piece would arrive Tuesday ( order placed on a Thursday) but it actually came on Saturday, only two days later. I installed it the next day and it fit/worked perfectly.
by: Cobalt08/27/2023
Easy install and the technology upgrade w the latch was super.
by: Vern07/14/2023
Quality part delivered on time but packing could be better as the item was loose and shifting around.
by: Edward 06/30/2023
Love the product. Works as advertised. Was great dealing with questions I had. All in all a great interaction.
by: Desi09/19/2023
Unbelievably fast transaction quality p roduct
by: Ronald 08/27/2022
This actuator works great so much better than my old one I had to lock out when I backed up but not this one easy to get hitched up to.
by: Scott 07/07/2023
Solid construction and bolts matched pe rfectly
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Show More Reviews
See what our Experts say about this Demco Brake Actuator
- Can the Demco 8705101 Be Used With Drum BrakesSince the Demco Hydraulic Brake Actuator w/ Electric Lockout - Disc - Zinc - 2" Ball - 7,000 lbs # DM62VR is designed specifically for disc brakes you will not be able to use this for your drum brakes. This actuator will provide more fluid pressure when compared to one made for drum brakes. What you are looking for is the Demco Hydraulic Brake Actuator - Drum - Zinc - 2" Ball - 7,000 lbs # DM72VR. The Demco part is 8705001, it is the drum brake equivalent of the 8705101 you purchased....
view full answer... - What Size Fitting Is On the Demco Hydraulic Trailer Brake Actuator DA66BThe Demco Hydraulic Trailer Brake Actuator part # DM72VR will take a male 3/8"-24 fitting such as the Demco Hydraulic Brake Hose with Fittings part # DM05982. I am not sure what size fittings you have now but all you would need is an adapter to go from the above 3/8"-24 fitting to the size you have now and this can be obtained locally.
view full answer... - Recommended Surge Brake Coupler To Replace Older Atwood Actuator W/ Bad Master CylinderI have a replacement option for you, but since Atwood went out of business there is not longer any replacement 171 master cylinders, and there is not a different brand master cylinder that will work as a replacement. Instead I recommend replacing your coupler with the Demco Hydraulic Trailer Brake Actuator - Drum Brakes - Zinc Plated - 2" Ball - 7,000 lbs # DM72VR if your 1996 Jayco trailer has drum brakes, or # DM62VR if your trailer has disc brakes. I included videos for each of the...
view full answer... - Drum Brake Surge Coupler With Reverse Lock Out To Replace TDE 7000 On 2007 Tahoe Boat TrailerYou will want to replace your TDE 7000 actuator with the Demco Hydraulic Brake Actuator # DM72VR. This will bolt to a 3" wide trailer pole tongue and is specific for drum brakes. The actuator has a zinc coating which is more resistant to corrosion than paint. And the upgraded EZ latch coupler makes connecting to the hitch ball easier and more reassuring since you can visibly tell when the latch drops into place. You can add the Reverse Lockout Solenoid Kit # DM5836 so you can still prevent...
view full answer... - How To Bleed Trailer BrakesYou are in luck! We happen to have a video on the proper procedure for bleeding trailer brakes. I have attached the video below as well as outline the method here for you. First top off the master cylinder with appropriate fluid. Next you will want to pump the fluid from the master cylinder. You can do this by unbolting the plate that holds the lever in place and then use that lever to actuate the master cylinder and force the fluid through. On some units, you will have to manually activate...
view full answer... - Replacing Drum Brake Actuator on Boat Trailer With Swing Away Coupler TDE LP7000There is not going to be a direct replacement for your exact setup as Tie Down Engineering no longer manufacturers these. You will need to have the Actuator LP7000 cut out of your swing away front coupler. Then you will be able to weld in a section of 3" wide channel tongue which you will then be able to attach the Demco Hydraulic Brake Actuator # DM72VR. Finally you will then use the Reverse Lockout Solenoid Kit # DM5836 since you have the reverse lockout valve.
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view full answer... - Repair Kit and Replacement Coupler for Dico Model 60 Actuator CouplerIf you want a repair kit to let you rebuild your Dico Model 60 actuator you can use kit # T4045400. For a new coupler you can use the Demco bolt-on hydraulic drum actuator # DM72VR which fits a 2-inch ball. This coupler bolts on to a 3-inch channel tongue.
view full answer... - Options to Replace Atwood 82543 Hydraulic Brake ActuatorThe Demco Hydraulic Brake Actuator part # DM72VR is for drum brakes which is what you need to replace an Atwood 82543. The other options you're inquiring about are for disc brakes which won't work. In short, there are tons of different versions of the Demco Hydraulic Brake Actuator each with different features such as drum/disc brake compatibility, weight capacity, ball size, lockout type etc. The correct one for the Atwood 82543 is listed above. In order to reverse without the brakes...
view full answer... - What Mechanisms Allow a Trailer with Surge Brakes to Back Up a HillI don't have a way to look up what type of actuator is on your trailer but there is definitely a chance it can back up a hill without brakes locking up. If you can't find a manual lockout you might have an electric lock out which you can verify by seeing if two wires run to the back of the actuator. Or the brake assemblies might be free-backing plates which do allow for reversing. If the trailer has a 5-way or 7-way connector as opposed to a 4-way that would be good indicator you have...
view full answer... - Availability of Replacement Master Cylinder for Atwood 85778 ActuatorThe Atwood master cylinder 85841 is no longer available. Atwood doesn't product any actuator components anymore so it's getting harder and harder to track down replacement parts. We do not have any other replacement units that would be compatible with your Atwood actuator so your best option at this point is really to replace the entire actuator assembly. This will also ensure that replacement parts will be readily available if needed down the line. To replace the Atwood 85778 model...
view full answer... - Solution for Atwood Surge Brake Coupler Needing Replacement PartsI really wish we had replacement parts still for the Atwood couplers but since they've been out of business for so long we don't have any way to get the parts you are wanting.
view full answer... - Replacement Actuator Recommendation for Discontinued Atwood 85738Thank you for the photos! To replace your Atwood 85738 actuator I recommend checking out the Demco 7K actuator which comes configured for Drum Brakes # DM72VR as well as Disc Brakes # DM62VR and a 2" hitch ball. This system is a bolt on installation but an experienced welder would be able to cut off your current actuator and weld either one of these on in it's place.
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- Would Demco Brake Actuator Be Proper Replacement for Tie Down Engineering Model 660The Tie Down Engineering (TDE) 6600 was compatible with 3 inch channel tongues, as is the Demco # DM72VR. Functionally speaking, they'll both work exactly the same, and the bolt holes on both actuators are 3 inches apart on center so you'll be able to utilize the existing holes. The Demco calls for (2) 1/2 inch x 4-1/2 inch grade 5 bolts. Really the only difference of consequence between the two is that the TDE model has a 6600 lb capacity, while the Demco has a 7000 lb capacity. So,...
view full answer... - Troubleshooting Atwood Surge Actuator Causing Brakes to Drag or Lock UpFrom what you are describing, it sounds like there might be a clog somewhere in the brake lines on your trailer. This can essentially cause pressure in the lines because the fluid can only go one way, meaning there won't be adequate relief after disengaging the brakes in the tow vehicle. What I recommend doing is bleeding the brake lines, starting at the brake assemblies on the trailer. I have attached a short video demonstration that for this process that you can use for reference. The...
view full answer... - Compatibility Of Surge Brake Actuator With Different Trailer Hydraulic Drum Brake Manufacturers You are able to use any drum brake actuator with your hydraulic drum brakes. The manufacturer for the brakes does not need to match the actuator manufacturer. You do need to ensure the actuator is rated for the weight rating on the trailer. This is required as the shock and master cylinder are paired to provide the correct amount of braking force. With an actuator rated for 6,600lbs it can be used for either a single 6,600lb axle or dual 3,300lb axles.
view full answer... - Replacement Actuator for 1997 Four Winns Boat TrailerI have some great replacement brake actuator options but that is the route you'll need to go as Atwood has been out of business for quite awhile so replacement parts are almost non existent. The best replacement option we offer is the Demco Hydraulic Trailer Brake Actuator part # DM72VR which is designed for a 3" tongue. I have attached a full list of options below as well.
view full answer... - Replacement Surge Brake Actuator Recommendation for Atwood 164310 of TrailerHey Nick, so the Atwood surge coupler you have now is a unique coupler in that it's mounting bolt pattern is not shared with other couplers exactly. So your best option is the Demco part # DM72VR that you referenced which may require drilling additional holes. Or if you know a welder they could weld it on as well.
view full answer... - How to Loosen Stuck Latch on an Atwood Hydraulic Brake ActuatorIf the latch on your Atwood surge brake actuator, like part # DM72VR, is fixed in any position start off by using some lubricant like WD-40, PB Blaster, or UltraLube Biobased Spray Lubricant and let it sit for a while. You may have to do this a number of times before it loosens up. Hitting it with a rubber mallet after the lubricant has time to work could help as well. Once it breaks free you should apply some more and work it in a little more. If the latch system itself is damaged and...
view full answer... - Replacement Actuator For An Atwood 82543 Surge Brake ActuatorThe closest option we have that will replace your Atwood 82543 is The Demco Hydraulic Brake Actuator # DM72VR. This actuator does not have the lockout function that the Atwood did, you will need to get The Lockout # T4748800. This lockout will wire into the reverse lights on your vehicle via the circuit on your trailer connector. I attached a review video link below.
view full answer... - Trailer Coupler to Replace Atwood 61101The Demco Hydraulic Brake Actuator # DM72VR will be a good replacement for your Atwood 61101. This is a surge actuator that is compatible with drum brakes. For a similar option designed for disc brakes you'd want the part # DM62VR.
view full answer... - Replacement Brake Actuator For Atwood 61101 We do not have any replacement parts for the Atwood 61101 brake actuator. I do have a direct replacement. The Demco Hydraulic Brake Actuator - Drum - Zinc - 2" Ball - 7,000 lbs, part # DM72VR, is a bolt-on brake actuator that mounts on 3" centers. I have included a product description link and a video demo link below.
view full answer... - Recommended Reverse Lockout for a Demco Surge Actuator for Drum Brakes # DM72VRYes, the Reverse Lockout Solenoid Kit for Demco DA66B Hydraulic Brake Actuators item # DM5836 will work great with the Demco Hydraulic Brake Actuator item # DM72VR.
view full answer... - Install Video and Torque Figure for Install Hardware Used on Demco Actuator part # DM72VRI attached a link to an install video for the Demco Actuator part # DM72VR that will be the best guide to use for the install as printed instructions aren't available. The bolt Grade you need is a minimum of 5 but a lot of people will use 8. I attached a link to a torque table to use based on the size of bolts you use.
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Do you have a question about this Brake Actuator?
Info for this part was:
Expert Research:
Mike L
Expert Research:
Jameson C
Edited by:
Lindsey S
Installed by:
Jeff D
Installed by:
David F
Video Edited:
Chris R
Updated by:
Wilson B
Written by:
Mike S
Video by:
Schuyler H
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Jason
12/19/2023
Its still working like new!