bing tracking image
  1. Brake Actuator
  2. Demco
  3. Surge Brake Actuator
  4. Disc Brakes
  5. 2-5/16 Inch Ball Coupler
  6. Bolt-On
Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 20K

Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 20K

lowest price pledge
Our Price: $552.26
Brake Actuator
This item qualifies for Free Shipping
Shipping Weight: 72 lbs
Quantity: 
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

Customer Photos

Need help with installation?
Locate installers near me
Surge actuator features a rustproof aluminum master cylinder and durable zinc plating. eZ-Latch coupler mechanism makes hookup a snap. Electric lockout activates automatically to keep brakes from actuating when in reverse. 5-Hole bolt-on case. Call 800-298-1624 to order Demco brake actuator part number DM8204311 or order online at etrailer.com. Free expert support on all Demco products. Guaranteed Lowest Price and Fastest Shipping for Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 20K. Brake Actuator reviews from real customers.
  • All Info
  • Reviews (14)
  • Q & A (0)
  • Photos
  • Why etrailer?

Demco Brake Actuator

  • Surge Brake Actuator
  • Disc Brakes
  • 2-5/16 Inch Ball Coupler
  • Bolt-On
  • 20000 lbs GTW
  • Electric Lockout
  • Straight Tongue Coupler
  • Demco

Surge actuator features a rustproof aluminum master cylinder and durable zinc plating. eZ-Latch coupler mechanism makes hookup a snap. Electric lockout activates automatically to keep brakes from actuating when in reverse. 5-Hole bolt-on case.


Features:

  • Hydraulic actuator activates trailer's brakes when tow vehicle slows or stops
  • Electric reverse lockout lets you back up without actuating trailer brakes
    • Solenoid activates automatically when you shift into reverse
  • eZ-Latch coupler mechanism for simple, secure hookup and disconnect
    • Lets you hook up when latch is in closed position - just drop coupler over hitch ball and latch will snap into place
  • Zinc plating offers corrosion resistance
    • 200-Hour salt spray rating
  • Heavy-duty, aluminum master cylinder is durable, rustproof, and efficient
    • Built for high-pressure applications
    • Allows 50 percent greater displacement than standard master cylinders
  • Acetyl copolymer lining provides smooth operation as actuator telescopes in and out
  • Built-in drop helps you match tow vehicle height
  • Breakaway included
    • Snap hook on safety cable ensures secure connection to breakaway lever
  • Durable steel construction with sturdy, reinforced outer casing
  • Bolt-on installation
    • 5-Hole case is universal and has 5 mounting holes on each side of actuator
    • 1/2" x 4-1/2" Grade-5 bolts (not included) required for mounting
  • Made in the USA


Specs:

  • Application: trailers with hydraulic disc brakes
  • Ball size: 2-5/16"
  • Gross towing weight: 20,000 lbs
  • Maximum tongue weight: 2,000 lbs
  • Mounting: straight, 3" wide trailer tongue
  • Drop: 4"
  • Model number: DA20
  • 1-Year warranty


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.


Electric Reverse Lockout

The electric reverse lockout on this trailer brake actuator is automatically activated when you shift your tow vehicle into reverse. The solenoid wires into your trailer connector - which connects to your tow vehicle - so that it can detect when you are in reverse. When your vehicle is in reverse, the solenoid ensures that the hydraulic actuator does not activate your trailer's brakes, thus allowing you to back up your rig. To use the lockout feature, you must have a 5-pole flat, 6-way round, or 7-pole trailer connector.


eZ-Latch Coupler

The coupler portion of this trailer brake actuator features a simple-to-use latching mechanism known as the eZ-Latch. With this mechanism, hooking up is as easy as dropping the coupler over your trailer hitch ball. The latch does not need to be tugged or manually activated to allow the ball into the coupler socket, nor does it have to be secured in place. Just make sure that the coupler is properly lined up with the ball when you lower it, and the rest is automatic.


Demco eZ-Latch in Use

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 200-hour salt spray rating. Even the master cylinder is made of rustproof aluminum to further ensure durability.



8204311 Demco DA20 Hydraulic Trailer Brake Actuator for Disc Brakes - Electric Lock-Out - 2-5/16" Ball Easy-Latch Drop Coupler - 20,000 lbs

Item # DM8204311






Customer Reviews

Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 20K - DM8204311

Average Customer Rating:  4.5 out of 5 stars   (14 Customer Reviews)

Surge actuator features a rustproof aluminum master cylinder and durable zinc plating. eZ-Latch coupler mechanism makes hookup a snap. Electric lockout activates automatically to keep brakes from actuating when in reverse. 5-Hole bolt-on case.

- DM8204311
by:

Pros - Installation was very easy and bleeding was simple for 2 people Cons - packaging was in a box more than twice the size of actuator allowing for a lot of obvious shifting with potential damage during transit. The new latch for the hitch is miss aligned from rest of hitch and has an apparent stress crack in it already. Not sure how long it will last compared to the steel ones on old model. It also has no place to lock the latch adding to theft concerns.



- DM8204311
by:

Works as it should. Perfect!


Comments
Great
Harry S - 05/17/2022


- DM8204311
by:

Surge impulse actuator with electric lockout. This is to replace an older malfunctioning unit and in part the change was necessary to go from drum hydraulic to disc hydraulic brakes.



- DM8204311
by:

Installed this on my boat trailer weighing in around 17,000 lbs total. ( boat and trailer) I have a long driveway with a slight incline and the electric lockout is terrible. While reversing the brakes would always engage and I would have to loosen the brake line with my flair wrench to complete my parking. I emailed e-trailer and they told me about the warranty process. It requires me to send in the faulty solenoid for them to inspect, and then deem if its covered or not. So I bit the bullet and just purchased another solenoid outright. Installed the solenoid and it worked fine with just the trailer, No boat on it. Once I loaded my boat onto the trailer, the brakes would lock as it did before. The solenoid was installed properly, to confirm this, I blocked both my truck and trailer tires. Put the truck in reverse and used a test light to verify 12v at the reverse light pin on my trailer light connection box.



- DM8204311
by:

Extremely Happy!



- DM8204311
by:

Great product ,big up grade from what was on the trailer . Better stopping power for my Grady white . Great up dates on my order from etrailer. Com .



- DM8204311
by:

I cannot report on the functionality of the product as I have not yet installed it. But I can say that it appears to be a real good product, well packaged, arriving early, and in excellent condition.



- DM8204311
by:

I love it works great.



- DM8204311
by:

Great product support, great pricing, great shipping, value priced products. Long time customer and will continue forever!



- DM8204311
by:

Excellent service as always thanks Steve for all you help



- DM8204311
by:



- DM8204311
by:



- DM8204311
by:



- DM8204311
by:


14
14

Ask the Experts about this Demco Brake Actuator



Do you have a question about this Brake Actuator?




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality brake actuator for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • 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 Andy C
Installed by:
Andy C
Employee Jameson C
Expert Research:
Jameson C
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.


Product Experts Available Now!
Call 800-298-1624