Demco Hydraulic Brake Actuator - Drum - Zinc - 2" Ball - 7,000 lbs
(115 reviews)
Price: $241.15
In Stock
Demco Hydraulic Brake Actuator - Drum - Zinc - 2" Ball - 7,000 lbs
Item # DM72VR
Retail:$267.85
Our Price: $241.15
You Save: $26.70
In Stock
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Demco Brake Actuator - DM72VR
- Surge Brake Actuator
- Drum Brakes
- 2 Inch Ball Coupler
- 7000 lbs GTW
- Bolt-On
- No Lockout
- Demco
- Straight Tongue Coupler
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 (114 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: 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: 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: 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: 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: 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: Ron R12/05/2023
Easy to install, big upgrade for us because it click ON auromatically
by: Mike05/20/2023
It wasn’t an exact fit, had to weld extensions plates seems to work ok
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: 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: Edward 06/30/2023
Love the product. Works as advertised. Was great dealing with questions I had. All in all a great interaction.
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: 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: Desi09/19/2023
Unbelievably fast transaction quality p roduct
by: Scott 07/07/2023
Solid construction and bolts matched pe rfectly
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: Michael 07/06/2023
Very nice unit
by: Barry 09/28/2022
much improved from the old coupler I replaced which was completly shot. the ez latch feature is awesome. very easy to install...just had to re prime the brakes.
by: Michael 03/16/2023
Perfect replacement for Atwood 171
by: Brian 07/13/2021
Nice unit. Two of the holes lined up with my old Attwood unit but looked like it sat a bit high. Instructions as to proper install would have helped. Drilled 3 new holes and good to go. Took a bit of work and bending to get my brake line to connect but worked out fine in the end.
by: Michael06/01/2022
i purchased this unit along with the electric lock out solenoid. they were priced excellent and arived promtly. very high quality units and very easy to install. only wish a page on how to bleed the unit came with it, instead of having to hunt one up on the internet. after finding instructions on how to bleed th unit it was quite simple and easy.very satified with the purchase
by: Chris06/03/2021
Good service and timely delivery of good products. Have the right parts delivered the first time means less headaches. Only shop here for my trailer needs. They have everything.
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See what our Experts say about this Demco Brake Actuator
- 7,500 lbs Demco Hydraulic Brake Actuator w/ EZ-Latch CouplerYes, the Demco Hydraulic Brake Actuator with item # DM72VR is exclusive to etrailer and you will not find this item # on their website. Demco's actuators are not available to be purchased directly from the manufacturer and must be purchased through a dealer. This hydraulic actuator has the EZ-Latch coupler mechanism for simple, secure hookup and disconnect. It has a gross towing weight of 7,000 lbs and a maximum tongue weight of 700 lbs. It mounts on a straight, 3" wide trailer tongue....
view full answer... - What Install Hardware is Required to Install Demco Hydraulic Trailer Brake Actuator DM72VRWe don't carry the needed hardware to install the Demco part # DM72VR that you ordered but I can tell you that you will need 1/2" x 4-1/2" Grade-5 or higher. I attached an install video for this coupler for you to check out as well.
view full answer... - Mounting Bolt Hole Dimensions for Demco Hydraulic Trailer Brake Actuator # DM72VRI went out to the warehouse and measured the Demco Hydraulic Brake Actuator item # DM72VR. The bolt hole spread is 3". I have linked a diagram below. I have linked a diagram I made below and another one that will show you a few dimensions.
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- Bolt Pattern for Demco Hydraulic Brake Actuator DM72VRI have attached for you below a photo which shows the bolt pattern for the Demco Hydraulic Brake Actuator part # DM72VR.
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view full answer... - Replacement Actuator For An Atwood 171The Demco Hydraulic Brake Actuator # DM72VR will replace your Atwood 171 actuator. This surge brake actuator will work for drum brakes and has no reverse lock out but is recommended that you equip your trailer with free-backing brakes so you can drive in reverse without the actuator triggering your trailer's brakes. The actuator has a gross towing weight up to 7,000 pounds and has a maximum tongue weight up to 700 pounds. The mounting has to have a 3 inch wide trailer tongue. If you...
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view full answer... - Removing Atwood Actuator to Install Demco DM72VRA cutting torch would work to remove your old actuator to install the Demco part # DM72VR. Or if you have a cutting wheel on a rotary tool that could be used to cut the welds and then maybe a grinder to get it smooth.
view full answer... - Do All Mounting Holes Need Used on the Demco Hydraulic Brake Actuator DM72VRYes, you'll need to use all of the mounting holes on the Demco Hydraulic Brake Actuator part # DM72VR in order to be covered under warranty or retain the capacity rating. Unfortunately, if one of the holes does not line up with an existing this mean drilling a new one.
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view full answer... - How to Bleed Trailer Surge BrakesI attached a video that details how to bleed surge brake actuators for you to check out. 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 it at the point where the hitch ball moves in and out. The model in the video...
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- What Size Frame Width Does Demco Surge Actuator DM7VR FitAre you absolutely sure the tongue is 3-1/4 inches wide and not 3 inches wide? 3 inch wide is a very common size and is what the Demco Surge Actuator part # DM72VR is designed to fit.
view full answer... - What Brake Fluid Should be Used in Surge Brake ActuatorsDOT 3 or DOT 4 brake fluid is recommended for Demco brake actuators like the # DM72VR. You should never use DOT 5 as it will wear out seals very quickly.
view full answer... - 1999 Shorelandr Actuator Replacement RecommendationThanks for the picture of your trailer. What you have now is an Atwood actuator. Since we no longer carry that actuator best solution would be a # DM72VR since it's very similar and actually a bit more reliable than the Atwood couplers.
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view full answer... - Surge Brake Actuator Recommendation for 1979 Wellcraft Sunhatch 196I'd recommend going with the Demco surge actuator part # DM72VR which is designed for a pole tongue trailer like your boat trailer, has a 6k capacity, is designed for drum brakes, and a 2 inch ball. This is our most popular surge actuator for boat trailers with drum brakes so it would work very well for you.
view full answer... - Adjusting Latch of Demco Surge Coupler DM72VR to Fit Hitch BallIf you look under the coupler # DM72VR you will see what looks like a nut on the latch assembly with a spring behind it. I attached a picture that points it out. Loosen it slightly until the ball fits in the coupler and latches properly.
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view full answer... - Replacement Actuator/Coupler to for Trailer with Welded on Drum Brake ActuatorEmail me back with them and I can see what would work best.
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view full answer... - Replacement Surge Actuator Coupler for Prestige 6000-lb TrailerIf you like you can submit a photo on our question page when you send us your inquiry or you can reply to this email with your photo if you cannot identify a suitable replacement surge actuator/coupler for your Prestige trailer by using the linked page. On our linked page you can start by selecting either a disc or drum brake actuator. Then click on the ball size you use to tow, and of course, your 6K trailer weight capacity. The select either an a-frame style or straight-tongue style...
view full answer... - Actuator Replacement Recommendation for Tie Down 660 for Drum BrakesWe don't carry the Tie Down actuators so we aren't going to be able to set you up with a different check valve or master cylinder for what you'd need. We could only recommend a different actuator all together like the Demco part # DM72VR which is for drum brakes.
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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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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.