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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 - Primed - 8" Adjustable Channel Center - 12,500 lbs

Demco Hydraulic Brake Actuator - Drum - Primed - 8" Adjustable Channel Center - 12,500 lbs

Item # DM8101222
Our Price: $432.02
Brake Actuator
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Surge-type actuator features a corrosion-resistant composite master cylinder and a primed finish. Adjustable channel lets you mount different coupler attachments (sold separately) in 1 of 3 positions. Weld-on application. 1-800-940-8924 to order Demco brake actuator part number DM8101222 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 - 8" Adjustable Channel Center - 12,500 lbs. Brake Actuator reviews from real customers.
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  • Reviews (2)
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  • Videos (1)
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Demco Brake Actuator - DM8101222

  • Surge Brake Actuator
  • Drum Brakes
  • Channel Only
  • 12500 lbs GTW
  • No Lockout
  • Weld-On
  • Demco
  • Agricultural
  • Construction

Surge-type actuator features a corrosion-resistant composite master cylinder and a primed finish. Adjustable channel lets you mount different coupler attachments (sold separately) in 1 of 3 positions. Weld-on application.


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
  • Breakaway lever activates your trailer's brakes if the trailer disconnects from the tow vehicle
    • Snap hook on safety cable ensures secure connection to lever
  • Acetal copolymer lining provides smooth operation as actuator telescopes in and out
  • Heavy-duty steel construction
  • Primed finish
  • Weld-on installation
  • 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: 8"
  • 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 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.



8101222 Demco DA10 Hydraulic Trailer Brake Actuator for Drum Brakes - Channel Center - 12,500 lbs

Installation Details DM8101222 Installation instructions



Video of Demco Hydraulic Brake Actuator - Drum - Primed - 8" Adjustable Channel Center - 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 - DM8101222

Hello everybody, this is Jeff at etrailer.com. Today we can take a look at the Demco eight inch adjustable channel center hydraulic drum brake actuator. Has a 12,500 pound gross towing weight capacity and is in a nice prime finish. Now this hydraulic actuator will activate your trailer 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 toward the rear of your vehicle. So with this surge brake system, this actuator is then triggered as your trailer moves forward once the tow vehicle starts to slow down.

So when this happens, the actuator inside portion right here will contract, which will apply force to the master cylinder in the back here. And this in turn is what supplies the necessary hydraulic pressure to engage your trailer's brakes. Now this uses an acetal copolymer lining around the inner slide and the outer case, provides a nice smooth operation as the actuator will telescope in and out. This one we mentioned is an adjustable channel design, has three different mounting positions for your coupler. Now the coupler is not included.

We do sell those separately. As we mentioned, this is a channel center design which means if you look at it, this channel right here is centered when you compare it to this outer case, it's pretty much centered the same, equally up or down. Now the height on this channel we mentioned from the bottom to the top is eight inches. The inside width is approximately about three inches inside to inside. Now this is a heavy-duty steel construction, has a nice prime finish on it for better corrosion resistance.

We mentioned the master cylinder back here. It is a composite master cylinder which is very durable and efficient and uses a glass-reinforced nylon construction, resists rust and corrosion. Provides an nice large reservoir to provide increased capacity for your brake fluid. And at the top here, you notice it has the cap where you put your brake fluid in. It's an automotive style diaphragm cap, which creates completely enclosed system to help prevent contamination of the brake fluid.

Right up at the very top here, it does include this breakaway cable with the hook on it. And this is included and it is required by law because it's designed to prevent a trailer runaway situation. Basically, when you hook your trailer up to your tow vehicle, you'll also hook this hook to it, and you'll have this cable that runs to this lever. So in the case, if your trailer ever comes detached from your tow vehicle, it would pull this cable which would activate that lever, which again would supply the pressure to the master cylinder back here and apply the brakes to a runaway situation. So again, it is required by law, so you do have to hook it up. Now this is a weld-on installation. It does mount to a straight three-inch-wide trailer tongue. This part is made in the USA. Application, again, this is for trailers with hydraulic drum brakes, gross towing weight capacity on this is 12,500 pounds, maximum tongue weight of 1,250 pounds. This does go by the model number of DA-10 and one last note I do wanna mention, if you notice in the back here, this actuator does not include a reverse lockout solenoid, which is usually installed to the master cylinder. So it is recommended that you either equip your trailer with the reverse lockout solenoid, which we do sell separately on our website, or to have free backing brakes on your trailer so that you can drive in reverse without the actuator triggering your trailer's brakes. But that's gonna do it for the review on this Demco eight-inch adjustable channel center hydraulic drum brake actuator with the 12,500 pound gross towing weight capacity.


Customer Reviews

Demco Hydraulic Brake Actuator - Drum - Primed - 8" Adjustable Channel Center - 12,500 lbs - DM8101222

Average Customer Rating:  5.0 out of 5 stars   (2 Customer Reviews)

Surge-type actuator features a corrosion-resistant composite master cylinder and a primed finish. Adjustable channel lets you mount different coupler attachments (sold separately) in 1 of 3 positions. Weld-on application.

by:

Thanks you! a great experience with the ordering and receiving my parts that I needed. I would recommend Etrailer.com to anyone needing competitively priced and quality parts fast.



by:


2
2

See what our Experts say about this Demco Brake Actuator

  • Replacement Inner Parts for Demco 12.5K Weld-On Actuator
    Thank you for all of the photos you sent in! I have some parts I believe will fit, but if you're able to find any exact part numbers on the actuator itself I will be able to provide more of a concrete selection of parts. It looks like your actuator is similar, if not the same, as the Demco Hydraulic Brake Actuator - Drum # DM8101222 which means the following replacement parts will fit: - Demco Actuator Replacement Master Cylinder for Drum Brakes # 5650 - Demco Actuator Replacement Break...
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    Image 1 for Image 2 for Image 3 for Image 4 for Image 5 for
  • 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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  • Correct Replacement Actuator for 12.5K DA10 Demco Hydraulic Brake Actuator
    To replace the actuator on your Demco Hydraulic Brake Actuator # DM8101222 you need the part # 5650. Brake actuators naturally wear out over time so having a spare on hand is a great idea, especially if you use the trailer all the time and get a lot of reps in with the actuator.
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Do you have a question about this Brake Actuator?


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
Employee Amanda M
Updated by:
Amanda M

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