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  1. Brake Actuator
  2. Demco
  3. Surge Brake Actuator
  4. Drum Brakes
  5. Channel Only
  6. 20000 lbs GTW
Demco Hydraulic Brake Actuator - Drum - Primed - 12" Adjustable Channel Down - 20,000 lbs

Demco Hydraulic Brake Actuator - Drum - Primed - 12" Adjustable Channel Down - 20,000 lbs

Item # DM8203332
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Brake Actuator
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Shipping Weight: 63 lbs
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Brake Actuator DM8203332 - Straight Tongue Coupler - Demco
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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. 1-833-496-1390 to order Demco brake actuator part number DM8203332 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 - 20,000 lbs. Brake Actuator reviews from real customers.
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  • Reviews (4)
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Demco Brake Actuator - DM8203332

  • Surge Brake Actuator
  • Drum Brakes
  • Channel Only
  • 20000 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
  • 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: 20,000 lbs
  • Maximum tongue weight: 2,000 lbs
  • Channel width: approximately 3"
  • Channel height: 12"
  • Mounting: straight, 3" wide trailer tongue
  • 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 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.



8203332 Demco DA20 Hydraulic Trailer Brake Actuator for Drum Brakes - Channel Down - 20,000 lbs

Installation Details DM8203332 Installation instructions




Customer Reviews

Demco Hydraulic Brake Actuator - Drum - Primed - 12" Adjustable Channel Down - 20,000 lbs - DM8203332

Average Customer Rating:  5.0 out of 5 stars   (4 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.

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We're replacing old brake units on our fleet of tank trailers. These Demco actuators have a longer adjustment channel than the ones we could get locally, and they were cheaper. Great customer service also!




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See what our Experts say about this Demco Brake Actuator

  • Applications for Demco Hydraulic Drum Brake Actuator # DM8203332
    The Demco Hydraulic Drum Brake Actuator # DM8203332 that you referenced is intended to mount on a 3-inch wide straight trailer tongue to engage drum brakes on the trailer. If you are looking to replace your trailer's electric drum brakes with hydraulic free-backing drum brakes then this unit is one of the items you will need. I have linked our page showing all sizes of free-backing hydraulic drum brakes; you need to use free-backing brakes with this actuator to allow backing up since it...
    view full answer...
  • Outer Casing Measurements for the Demco Hydraulic Brake Actuator
    The outer casing of the Demco Hydraulic Brake Actuator - Drum - Primed - 12" Adjustable Channel Down - 20,000 lbs, part # DM8203332, measures at 19-3/4" long (just 1/4" off of yours) x 4-1/2" wide and 6" tall. It looks like this fits your current one almost perfectly (it's easy to be off 1/4" in measurements). If you have any other questions, please let me know and I will help you further.
    view full answer...

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Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Lindsey S
Written by:
Lindsey S
Employee Laura H
Updated by:
Laura H
Employee Amanda M
Updated by:
Amanda M

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