bing tracking image
  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 - 12" Adjustable Channel Down - 12,500 lbs

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

Item # DM8103432
Our Price: $388.59
Brake Actuator
This item qualifies for Free Shipping
Shipping Weight: 48 lbs
Quantity: 
In Stock
Demco Brake Actuator - DM8103432
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Videos

Need help with installation?
Locate installers near me
Surge-type actuator features a corrosion-resistant composite master cylinder and a primed finish. Adjustable down channel lets you mount different coupler attachments (sold separately) in 1 of 5 positions. Weld-on application. 1-636-306-4830 to order Demco brake actuator part number DM8103432 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 - Primed - 12" Adjustable Channel Down - 12,500 lbs. Brake Actuator reviews from real customers.
  • All Info
  • Reviews (2)
  • Q & A (0)
  • Videos (1)
  • Photos
  • Why etrailer?

Demco Brake Actuator - DM8103432

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

Surge-type actuator features a corrosion-resistant composite master cylinder and a primed finish. Adjustable down channel lets you mount different coupler attachments (sold separately) in 1 of 5 positions. Weld-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
  • 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: 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.



8103432 Demco DA10 Hydraulic Trailer Brake Actuator for Drum Brakes - Channel Down - 12,500 lbs

Installation Details DM8103432 Installation instructions



Video of Demco Hydraulic Brake Actuator - Drum - Primed - 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 - DM8103432

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 with the 12,500-pound weight 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 will occur and the momentum will push your trailer toward the rear of your vehicle.So with the surge brake system, the actuator is triggered as your trailer moves forward once your tow vehicle starts to slow down. When this happens, this actuator will contract, applying force to the master cylinder in the back here. This in turn supplies the necessary hydraulic pressure to engage your trailer's brakes.This one uses an acetone copolymer lining in it to provide smooth operation as this actuator will telescope in and out.

The front here you can see as an adjustable channel, has five different mounting positions for your coupler. Now the coupler is not included. We do sell that separately on our website. This is a channel-down design and by that, that means that allows the greater drop of your coupler to help level your trailer with the tow vehicle.We mentioned the master cylinder. You can see it's right back here.

This is a composite master cylinder. It's very durable and efficient. It's a glass reinforced nylon construction so it does resist rust and corrosion. It's a very large reservoir to provide increased capacity for the brake fluid.Right up at the top here, you can see it uses the standard automotive style diaphragm cap. This will help create a completely enclosed system.

Put your brake fluid in right there, helps prevent contamination of the fluid.Also, at the very top here, you can see it has this breakaway cable, which is included and a breakaway cable is always required. Basically, what this does, is you would hook this hook right here to your tow vehicle and then what'll happen is if it happens to become unhooked from your tow vehicle, it'll pull this cable, which will activate the brakes to stop a runaway situation.Now this actuator is a heavy-duty steel construction, has a nice prime finish on it. It is a well-done installation and it is made in the USA. Application, this for trailers with hydraulic drum brakes. The gross towing weight capacity is 12,500 pounds.

Maximum tongue weight is 1,250 pounds.Now the channel width right up here that your coupler will go into inside, the inside is approximately three inches. It's usually just a little bit under so it fits in there your coupler. Channel height, you get a ruler out and you can see bottom to the top is going to be right at 12 inches. This is designed to mount on a straight three-inch wide trailer tongue. This actuator does go by a model number of DA10.One last note I do want to mention on this is because this actuator does not include a reverse lockout in the back here, it is recommended that you equip your trailer with free backing brakes so that you can drive in reverse without this actuator triggering your trailer's brakes.That should do it for the review on the Demco 12-inch adjustable channel-down hydraulic drum brake actuator with a 12,500-pound weight capacity.


Customer Reviews

Demco Hydraulic Brake Actuator - Drum - Primed - 12" Adjustable Channel Down - 12,500 lbs - DM8103432

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 down channel lets you mount different coupler attachments (sold separately) in 1 of 5 positions. Weld-on application.

by:

Excellent product,service and price. I was notified at every stage where my item was on its journey without contacting etrailer other than placing my order. They have their "stuff " together.




by:

received in a timely manner product was just what I ordered nice to have the right parts



2
2

See what our Experts say about this Demco Brake Actuator




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate brake actuator information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

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

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.