1. Brake Actuator
  2. Demco
  3. Surge Brake Actuator
  4. Drum Brakes
  5. 2 Inch Ball Coupler
  6. 8600 lbs GTW
Demco Hydraulic Brake Actuator - Drum - Zinc - 2" Ball - 8,600 lbs

Demco Hydraulic Brake Actuator - Drum - Zinc - 2" Ball - 8,600 lbs

Item # DM8608601
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Brake Actuator
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Shipping Weight: 28 lbs
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DM8608601 - Bolt-On Demco Brake Actuator
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Surge-type actuator features a corrosion-resistant composite master cylinder and durable zinc plating with a 200-hour salt spray rating. eZ-Latch coupler mechanism makes hookup a snap. Bolt-on application. Call 800-298-8924 to order Demco brake actuator part number DM8608601 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 - 2" Ball - 8,600 lbs. Brake Actuator reviews from real customers.
  • All Info
  • Reviews (17)
  • Q & A (12)
  • Photos
  • Why etrailer?

Demco Brake Actuator - DM8608601

  • Surge Brake Actuator
  • Drum Brakes
  • 2 Inch Ball Coupler
  • 8600 lbs GTW
  • Demco
  • Bolt-On
  • No Lockout
  • Straight Tongue Coupler

Surge-type actuator features a corrosion-resistant composite master cylinder and durable zinc plating with a 200-hour salt spray rating. eZ-Latch coupler mechanism makes hookup a snap. Bolt-on application.


  • Hydraulic actuator activates trailer's brakes when tow vehicle slows or stops
  • 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
  • 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
  • Large rear rollers allow for easy movement and smooth operation
  • Breakaway included
    • Snap hook on safety cable ensures secure connection to breakaway lever
  • Heavy-duty steel construction with sturdy, reinforced outer casing
  • Bolt-on installation
    • Requires 1/2" x 4-1/2" Grade-5 bolts (not included) for mounting
  • Made in the USA


  • Application: trailers with hydraulic drum brakes
  • Ball size: 2"
  • Gross towing weight: 8,600 lbs
  • Maximum tongue weight: 860 lbs
  • Mounting: straight, 3" wide trailer tongue
  • Model number: DA86
  • 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.

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. In addition, the composite master cylinder is made of corrosion-resistant glass-reinforced nylon to further ensure durability.

8608601 Demco DA86 Hydraulic Trailer Brake Actuator for Drum Brakes - 2" Ball Easy-Latch Drop Coupler - 8,600 lbs

Customer Reviews

Demco Hydraulic Brake Actuator - Drum - Zinc - 2" Ball - 8,600 lbs - DM8608601

Average Customer Rating:  4.8 out of 5 stars   (17 Customer Reviews)

Surge-type actuator features a corrosion-resistant composite master cylinder and durable zinc plating with a 200-hour salt spray rating. eZ-Latch coupler mechanism makes hookup a snap. Bolt-on application.

- DM8608601

Easy install. Well made. Thought maybe for [the price] the grade 8 install bolts and nuts may be included, but not so. Have not towed the trailer yet, but see no reason for it not to function well. 668444

- DM8608601

Replaced a rusted and frozen brake actuator with this one, and it ROCKS! Easy installation, easy filling the brake fluid reservoir, good retention pin for the ball locking mechanism, I like everything about it. 851238

- DM8608601

Got product quickly, it fit perfectly. And it functions great. This product replaced an older Atwater model. 831598

- DM8608601

Actually have not used trailer but all seems goog 807042

- DM8608601

Arrived quickly. Installation was straight forward. Will be a great update to my old trailer. 795368

- DM8608601

Working great 744519

- DM8608601

This is the second time our company has ordered this item from etrailer. excellent customer service from a company that truly appreciates it's customers. I got the part I ordered with no issues and it is a quality item as well. We were replacing one on a trailer that had failed. Thank you again 723274

I work for a shop. the customers trailer never came back with any issues. I would guess it is working as it should.
Bruce - 11/09/2020


- DM8608601

This product was a suggestion to replace a back ordered more expensive unit. Actuator fit my trailer well and I was up and running in two days. Great service and good price!! 698199

- DM8608601

The whole process from ordering to receiving and installing was fantastic. The hitch came faster than expected and the process to unbolt the old one and install the new one only took about 20 minutes. Highly recommend this product and the company. 691248

- DM8608601

have not installed it yet, but looks heavy duty enough for the job 594398

- DM8608601

Our shop just had to replace this with one that was bent up on a trailer. swapped like for like. No issues. Appreciate the good service from Etrailer. 592439

- DM8608601

Customer service over the top...Thank you! Product received, everything I expected! 580960

- DM8608601

This company is one of best dealings that I have had. the customer service was excellent and everyone was extremely helpful with my order. Shipping was fast and exactly what I needed! I highly recommend doing business with them! 546896

- DM8608601

After multiple consultations I was able to obtain an actuator that seems to be perfect. The staff was very professional in answering questions and taking care of a return. They are great to work with. My only suggestion is that in the interest of Best Practice the actuator should be sold with the appropriate manufactuter tecommended bolts, lock washers and nuts. 544590

- DM8608601

We have just completed rebuilding 16 concrete trailers and converted all of them to this brake actuating couopler. We needed a 2" ball on a heavy hitch since the trailer and concrete weigh 5,500 to 6,000 lbs, I didn't want to push a lighter duty hitch to it's max weight. These trailers pull concrete 7 days a week and I have been happy with their performance. 476653

- DM8608601

Bent pins on one assembly and had to be removed to straighten before installation. Seems to have been dropped some time during shipping or handling. 403102

- DM8608601

Carla M. worked with me to make sure we had all the right parts for my boat trailer. I am quite happy with her help. 324571


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Info for this part was:

Edited by:
Leah B
Written by:
Lindsey S
Expert Research:
Jameson C
Updated by:
Laura H

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