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  1. Brake Actuator
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  3. Surge Brake Actuator
  4. Drum Brakes
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  6. 20000 lbs GTW
Demco Hydraulic Brake Actuator - Drum - Primed - A-Frame - Adjustable Channel Center - 20,000 lbs
Demco

Demco Hydraulic Brake Actuator - Drum - Primed - A-Frame - Adjustable Channel Center - 20,000 lbs

Part Number: DM8202222
$588.95
Brake Actuator
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Surge-type actuator features a corrosion-resistant composite master cylinder and a primed finish. 8" Adjustable channel lets you mount different coupler attachments (sold separately) in 1 of 3 positions. Welds onto a 50-degree A-frame trailer. 1-800-940-8924 to order Demco brake actuator part number DM8202222 or order online at etrailer.com. Free expert support on all Demco products. Great prices and Fastest Shipping for Demco Hydraulic Brake Actuator - Drum - Primed - A-Frame - Adjustable Channel Center - 20,000 lbs. Brake Actuator reviews from real customers.
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  • Reviews (36)
  • Q & A (0)
  • Videos (1)
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Demco Brake Actuator - DM8202222

  • Surge Brake Actuator
  • Drum Brakes
  • Channel
  • 20000 lbs GTW
  • Weld-On
  • Farm Trailer
  • Construction Trailer
  • No Lockout
  • Demco
  • A-Frame Tongue

Surge-type actuator features a corrosion-resistant composite master cylinder and a primed finish. 8" Adjustable channel lets you mount different coupler attachments (sold separately) in 1 of 3 positions. Welds onto a 50-degree A-frame trailer.


Features:

  • Hydraulic actuator activates trailer's brakes when tow vehicle slows or stops
  • Adjustable channel has 3 different mounting positions for coupler (sold separately)
  • 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
  • Acetal copolymer lining provides smooth operation as actuator telescopes in and out
  • Breakaway included
  • Heavy-duty steel construction
  • Primed finish
  • Weld-on installation
  • Made in the USA


Specs:

  • Application: 50-degree A-frame trailers with hydraulic drum brakes
  • Gross towing weight: 20,000 lbs
  • Maximum tongue weight: 2,000 lbs
  • Channel width: approximately 3"
  • Channel height: 8"
  • Model number: DA20
  • 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.


Adjustable Channel Design

The adjustable channel on this trailer brake actuator allows for ultimate versatility. Mount almost any type of coupler (sold separately) - from a standard ball coupler to a lunette ring or clevis attachment - to fit your specific application. In addition, the 3 mounting positions on the channel let you adjust the height of the coupler. Just place the coupler so that it matches the height of the ball mount or other hitch attachment on your tow vehicle and you will be able to tow your trailer levelly.



8202222 Demco DA20 Hydraulic Trailer Brake Actuator for Drum Brakes - A-Frame - Channel Center - 20,000 lbs




California residents: click here


Video of Demco Hydraulic Brake Actuator - Drum - Primed - A-Frame - Adjustable Channel Center - 20,000 lbs

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Built to Launch, Built to Last: Demco Breaks Down Their Surge Brake Actuators

Hello, neighbors, it's Brad here from etrailer and today I'm in Boyden, Iowa at the Demco headquarters and manufacturing facility where we got to see Demco products made. And these are all products that I handle on a daily basis when doing flat tows, fifth wheels, or even couplers. They cover so many different towing products and they have plenty of experts here to break down some of their products a little bit more to give you some understanding as well as allow me to ask those questions on products that I handle every day. So, Carter, what do we have here So, this is DA86 brake actuator model. This one is designed for disc brakes. We do also offer for drum brakes, as well, depending on what your trailer actually has on itself.

The nice thing about our actuators, they are all hydraulic-based, so they are all inertia-based. As you back up with the trailer, the brakes are applied as you back up and then going forward, obviously, when you come to a stop, the inertia on the inner slide tube itself will engage this as it's necessary. That will allow the brake fluid inside of the master cylinder reservoir here to go throughout the brakes. Brad So, what's the typical application for this So, this one here, this would be on smaller utility trailers, marine trailers, boat trailers. Obviously, with that as well, the plated finish here, a lot of marine applications will use that to prevent rusting.

That's kind of the main user for this. This is a light duty, so this is actually rated at 8,600 pounds. We do offer anything from 7,000 up to 20,000-pound actuators. So if I'm adding this to a trailer or replacing an old one, what's installation look like Yeah, so this one itself is a standard three-hole application. A lot of OEMs out there, trailer manufacturers out there, will have this standard three-bolt system on it.

We do have weld-on features, as well. A-frame options, definitely depends on what your trailer has as far as the application goes. We do kind of pride ourselves on flexibility with mounting applications, as well. So, it's designed to mount on a standard three-inch tongue, that's kind of industry standard out in the market. Basically, with this one, obviously, you'll have those three bolts that will allow you to take your existing one off, put this one on and away you go.

This red tab is catching my attention. I'm assuming that this is a lockout It is, you are correct, yes. So, most disc brake actuators will come standard with an electric lockout on the backside. Usually you have either a bypass solenoid or an inline solenoid that will just have two wires connecting to it. One's a power, one is a ground source. If there is a case where the ground is not proper, the solenoid isn't functioning like it's designed to, this is where this manual lockout comes into play. The nice thing with that, basically, all you would have to do in a standard situation, it would be down like that, flip the tab up. As soon as you back up, that does not allow for this inner slide tube to move in and apply those brakes. And then as soon as you pull forward with this, this tab would actually fall out of the way, that'll allow you to go in a normal state. Brad So, a nice little backup plan in case electronics aren't working, which I can imagine marine applications is probably one of those Right, yes, absolutely. So, obviously you wanna get your boat in the water. Best way to do that is to, obviously, backup with that. You don't wanna have the brakes apply when you do that. Obviously, it is a frustrating situation when the solenoid isn't working like it's designed to. So that's definitely a nice feature that that manual lockout comes into play. We got to see this manufactured today. Family-owned company here in Iowa, made in the US, so a great product. Carter, thank you for taking the time to show us your surge actuator. Yeah, thanks for stopping over. Appreciate it.

Ratings & Reviews

4.9

36 reviews
Surge-type actuator features a corrosion-resistant composite master cylinder and a primed finish. 8" Adjustable channel lets you mount different coupler attachments (sold separately) in 1 of 3 positions. Welds onto a 50-degree A-frame trailer.

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Great hitch



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Good product excellent business



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You did a great job and we received it very quickly. Thank you.



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Very good product. I have been a fabricator for 42 years, and I will say this is very well made. etrailer.com is a great place!



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Very happy with my purchase. It was a good price, easy to order and was received in short time. Thank you!



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Perfect , the delivery was faster than expected. The product is real good quality.
Thanks for your great service.
Regards,
Marcel



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far superior to what it is replacing. well constructed, fast shipping.
Thanks again for supplies a quality product keep it up!



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Extremely happy with service and product. Thank You!



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Great design. Easy to install. Very sturdy and excellent updated features



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Thanks for your help in these trying times. I am restoring the surge brake operations to a 1985 Wells cargo enclosed trailer and performing all of the work myself. Not an easy task on a 36 year old trailer purchased new. I received this part and it is fantastic and arrived many days ahead of the projected delivery date. My prior orders also arrived early and the trailer brake parts and lines fit perfectly. Thank you for providing the service and knowledge to get me what I needed to restore an obsolete trailer. I can provide photos on completion. I may need to order new parts again in 36 years, I will be 94.



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Excellent product. Exact product as shown. Quality materials. Quick to ship and receive.



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Product has met my expectations. The customer service at etrailer is fantastic.



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Yes i recieved the device , I'ts better than i expexted , very well built , Can definetely handle more weight than designed for, P/S I invented the device about 45 years ago. The device takes the shifting weight away from the hitch and tong of the trailer. The first device used a coil spring, The device i recieved uses a shock works the same as a coil spring.



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Super replacement and much cheaper than the bulldog style.



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this hitch was by far beyound my expections they will get most of my business


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See what our Experts say about this Demco Brake Actuator

  • Surge Brake Actuator Fit and Compatibility with A-Frame Trailer
    The Demco Hydraulic Brake Actuator - Drum - Primed - A-Frame - Adjustable Channel Center - 20,000 lbs # DM8202222 can be drilled and bolted onto a galvanized trailer. All of the a frame surge brake couplers are weld on, but you can custom mount them on your galvanized trailer if desired. That style of mount won't meet the warranty requirements, but if installed correctly would work fine. If you don't need that capacity, I've attached a link to all the disc and drum brake options. You...
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  • How to Determine the Correct Replacement Brake Assembly Size for a 6,000-lb Axle
    You can determine what the correct replacement brake assembly is by measuring the diameter of the brake assembly. This is measured from one brake pad directly across to the other brake pad. This is demonstrated at the 2:05 mark of the attached review video for our Electric Trailer Brake Kit # AKEBRK-7-SA that should be what you are needing for your application. This kit measures 12" x 2" and is compatible with 5.2K to 7K axles. This kit also comes with both the right and left hand assemblies. If...
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Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Lindsey S
Written by:
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Employee Laura H
Updated by:
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Employee Wilson B
Updated by:
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Employee Dustin K
Video Edited:
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