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  1. Brake Actuator
  2. Demco
  3. Surge Brake Actuator
  4. Drum Brakes
  5. Channel Only
  6. 12500 lbs GTW
Demco Hydraulic Brake Actuator - Drum - Zinc - 12" Adjustable Channel Down - 12,500 lbs

Demco Hydraulic Brake Actuator - Drum - Zinc - 12" Adjustable Channel Down - 12,500 lbs

Item # DM8102131
Retail:$675.42
Our Price: $366.26
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Brake Actuator
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Demco Surge Brake Actuator - DM8102131
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Surge actuator features a corrosion-resistant composite master cylinder and durable zinc plating, making it perfect for marine use. Adjustable down channel lets you mount coupler attachments (sold separately) in 1 of 5 positions. Bolt-on application. 1-833-496-1390 to order Demco brake actuator part number DM8102131 or order online at etrailer.com. Free expert support on all Demco products. Guaranteed Lowest Price and Fastest Shipping for Demco Hydraulic Brake Actuator - Drum - Zinc - 12" Adjustable Channel Down - 12,500 lbs. Brake Actuator reviews from real customers.
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Demco Brake Actuator - DM8102131

  • Surge Brake Actuator
  • Drum Brakes
  • Channel Only
  • 12500 lbs GTW
  • Bolt-On
  • No Lockout
  • Straight Tongue Coupler
  • Demco

Surge actuator features a corrosion-resistant composite master cylinder and durable zinc plating, making it perfect for marine use. Adjustable down channel lets you mount coupler attachments (sold separately) in 1 of 5 positions. Bolt-on application.


Features:

  • Hydraulic actuator activates trailer's brakes when tow vehicle slows or stops
  • Adjustable channel has 5 different mounting positions for coupler (sold separately)
    • Channel-down design allows for greater drop
  • Zinc plating offers excellent corrosion resistance
    • 500-Hour salt spray rating - great for marine applications
  • 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
  • Bolt-on installation
    • Requires 1/2" x 4-1/2" Grade-5 bolts (not included) for mounting
  • Made in the USA


Specs:

  • Application: trailers with hydraulic drum brakes
  • Gross towing weight: 12,500 lbs
  • Maximum tongue weight: 1,250 lbs
  • Channel width: approximately 3"
  • Channel height: 12"
  • Mounting: straight, 3" wide trailer tongue
  • Model number: DA10
  • 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 5 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.


This actuator is great for tall trailers. This is because the adjustable channel is positioned so that the mounted coupler can sit below the actuator tube, allowing for a greater drop than with a standard center-mounted channel. As a result, you can line up your tall trailer with your tow vehicle's hitch for a level setup.


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 500-hour salt spray rating, making the actuator perfect for marine use. In addition, the composite master cylinder is made of corrosion-resistant glass-reinforced nylon to further ensure durability for marine applications.



8102131 Demco DA10 Hydraulic Trailer Brake Actuator for Drum Brakes - Channel Down - 12,500 lbs

Installation Details DM8102131 Installation instructions



Video of Demco Hydraulic Brake Actuator - Drum - Zinc - 12" Adjustable Channel Down - 12,500 lbs

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




Video Transcript for Review of Demco Brake Actuator - Surge Brake Actuator - DM8102131

Jeff: Hello, everybody. This is Jeff at etrailer.com. Today we're going to take a look at this Demco 12 inch adjustable channel down hydraulic drum brake actuator. Has a 12,500 pound capacity. Now this hydraulic actuator will activate your trailer's brakes when your tow vehicle slows or stops. Basically what happens is when you apply the brakes in your tow vehicle, deceleration occurs and the momentum will push your trailer towards the rear of your vehicle.

So with the surge brake system, this actuator is triggered as your trailer moves forward once your tow vehicle starts to slow down. So when this happened is the inner portion of this actuator will contract back and it applies force to the master cylinder in the back here and this in turn supplies the necessary hydraulic pressure to engage your trailer's brakes.Now it does use an acetone co-polymer lining on the inner portion here. That'll provide a nice smooth operation as the actuator telescopes in and out. And if you notice on the front, it is an adjustable channel design. So it does have five different mounting positions for your coupler and the coupler is not included.

We do sell that separately on our website. And it is a channel down design. You can see most of the channel is positioned down, so this will allow for a greater drop.Now this is a heavy duty steel construction. Now master cylinder in the back here, it is a composite master cylinder. It's very durable and efficient.

It's a glass reinforced nylon construction to resist rust and corrosion, and it provides a nice large reservoir, provides increased capacity for the brake fluid. And if you notice up at the top here, it uses an automotive style diaphragm cap, and that'll create a nice completely enclosed system to help prevent contamination of the brake fluid.Now, this does include this breakaway cable right here. Now this is required by law because it will prevent a trailer runaway situation. Basically what you do, you take this hook portion and you attach this to your tow vehicle. And then what'll happen is if by chance your trailer comes disconnected from your tow vehicle, it'll pull on this cable, which will activate this lever, which will apply pressure to the master cylinder.

Again, prevent the trailer from a runaway situation, it applies the brakes on the trailer, but it is included.Now this is a bolt on installation. You can see at the bottom here. Let me just go ahead and get this hook back up. There we go. But right down here at the bottom, you can see these holes, it's for a bolt on installation. Now this part is made in the USA. A Few specs on this. This is for trailers with hydraulic drum brakes. Gross towing weight capacity is 12,500 pounds. Maximum tongue weight capacity is 1,250 pounds. Now the channel width, which is the inside portion of the channel, if we put a ruler on that you can see the inside is three inches. The channel height, which will go from the bottom to the very top, is 12 inches tall. And when you go to install this, this is designed to mount onto a straight three inch wide trailer tongue.Now, this actuator also goes by the model number of DA10. And one last note on this is because this actuator does not include a reverse lockout in the back here, it is recommended that you equip the trailer or this actuator with either a reverse lockout solenoid are on your trailer to install free backing brakes. Either one of those, because then you can be able to drive in reverse without the actuator triggering your trailer's brakes.But that should do it for the review on this Demco 12 inch adjustable channel down hydraulic drum brake actuator with a 12,500 pound capacity.


Customer Reviews

Demco Hydraulic Brake Actuator - Drum - Zinc - 12" Adjustable Channel Down - 12,500 lbs - DM8102131

Average Customer Rating:  4.0 out of 5 stars   (1 Customer Reviews)

Surge actuator features a corrosion-resistant composite master cylinder and durable zinc plating, making it perfect for marine use. Adjustable down channel lets you mount coupler attachments (sold separately) in 1 of 5 positions. Bolt-on application.

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Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Lindsey S
Written by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Laura H
Updated by:
Laura H

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