Demco Hydraulic Brake Actuator w/ Drop - Disc - Zinc - 2-5/16" Ball - 8,000 lbs

Demco Hydraulic Brake Actuator w/ Drop - Disc - Zinc - 2-5/16" Ball - 8,000 lbs

Item # DM8758811

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Brake Actuator

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Demco Bolt-On Brake Actuator - DM8758811
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  • Surge Brake Actuator
  • Disc Brakes
  • 2-5/16 Inch Ball Coupler
  • 8000 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. Call 800-298-8924 to order Demco brake actuator part number DM8758811 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 - Disc - Zinc - 2-5/16" Ball - 8,000 lbs. Brake Actuator reviews from real customers.


  • All Info
  • Reviews (3)
  • Q & A (2)
  • Videos (1)
  • Photos
  • Why etrailer?

Demco Brake Actuator - DM8758811

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.


Features:

  • 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
  • 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
  • Built-in drop helps you match tow vehicle height
  • Breakaway included
    • Snap hook on safety cable ensures secure connection to breakaway lever
  • Heavy-duty steel construction
  • Zinc plating offers corrosion resistance
    • 200-Hour salt spray rating
  • Bolt-on installation
    • Requires 1/2" x 4-1/2" Grade 5 bolts (not included) for mounting
  • Made in the USA


Specs:

  • Application: trailers with hydraulic disc brakes
  • Ball size: 2-5/16"
  • Gross towing weight: 8,000 lbs
  • Maximum tongue weight: 800 lbs
  • Mounting: straight, 3" wide trailer tongue
  • Drop: 4"
  • Model number: DA91
  • 1-Year warranty


Note: This actuator is compatible with the Demco manual reverse lockout kit (DM5939). If you choose not to add the 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.



8758811 Demco DA91 Hydraulic Trailer Brake Actuator for Disc Brakes - 2-5/16" Ball Easy-Latch Drop Coupler - 8,000 lbs







Video of Demco Hydraulic Brake Actuator w/ Drop - Disc - Zinc - 2-5/16" Ball - 8,000 lbs


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Demco Brake Actuator - Surge Brake Actuator - DM8758811 Review

Speaker 1: Today we're gonna take a look at the Demco Hydraulic Disc Brake Actuator, with the 2 5/16" ball coupler, 4" drop and an 8,000 pound weight capacity.Now this hydraulic actuator will activate your trailer brakes when your tow vehicle slows or stops. Basically, 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 the surge brake system, the actuator's triggered as your trailer moves forward, once your tow vehicle starts to slow down. When this happens, the actuator will contract and applies force to the master cylinder back here, and this in turn supplies the necessary hydraulic pressure to engage your trailer brakes.This uses a composite master cylinder, which is very durable and efficient. Uses glass reinforced nylon construction, resists rust and corrosion. It's a very large reservoir to provide increased capacity for the brake fluid.

And if you notice on the top here, it has a nice automotive style diaphragm cap. This helps create a completely enclosed system to help prevent contamination of your brake fluid.On the inside of this actuator, they do offer an acetal copolymer lining and that provides a nice smooth operation as the actuator telescopes in and out. The ball coupler right up here uses an easy latch coupler mechanism for a simple, secure hookup and disconnect. Makes it very easy, it'll let you hook up your latch when it's in the closed position like it is now. All you do is just drop the coupler over the hitch ball and the latch will snap into place.I just want to show you that.

I happen to pull a . here's 2 5/16" diameter hitch ball. So if we just lift this up, put the ball under there, you see if you just put the coupler onto the ball and then push it down, it'll automatically go down, lock into place, and you don't have to keep opening and closing the lever. Then to remove it, all you have to do is pull up on this lever down here, extend it all the way open, and then just lift it off the ball. So simple like that, easy latch mechanism.

Now this does also have a built-in 4" drop on the ball coupler, helps you match your tow vehicle height.The break away kit right up here, the wire with the hook attached to it, this break away kit ensures a secure connection to your break away lever. Basically what you do with the break away kit, this would hook to your tow vehicle, and in the event the trailer would come unhooked from your tow vehicle, it would pull this cable which would activate the lever and then apply the brakes on a runaway trailer so it doesn't go anywhere.Now this actuator is of heavy duty steel construction. Has a nice zinc plating to offer corrosion resistance. Goes through a 200 hour salt spray rating. It is a bolt on installation.

It does mount to a straight 3" wide trailer tongue. To install this does require 1/2" by 4 1/2" long grade 5 bolts for mounting. They are not included.A few specs on this. The application is for trailers with hydraulic disc brakes. The ball size again it fits on, is a 2 5/16" diameter hitch ball. Gross towing weight capacity is 8,000 pounds. Maximum tongue weight capacity is 800 pounds. The drop is 4" and this also goes by the model number of DA91.But that should do it for the review on the Demco Hydraulic Disc Brake Actuator with the 2 5/16" ball coupler, the 4" drop and an 8,000 pound weight capacity.


Customer Reviews

Demco Hydraulic Brake Actuator w/ Drop - Disc - Zinc - 2-5/16" Ball - 8,000 lbs - DM8758811

Average Customer Rating:  4.7 out of 5 stars   (3 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.

- DM8758811
by:

good 721282



- DM8758811
by:

Thanks!! What a great experience with etrailer.com. Trailer needed many parts, rusted, broken etc. Tried to contact maker of trailer for replacement parts, bad experience. Rude, unwilling to help, handling fees, VERY expensive shipping, and cash up front. I then turned to etrailer.com! Fantastic people on the line, sales personal were Kind, patient, and very knowledgeable about all my trailer needs. My parts arrived quickly, free shipping, and accurate. Not to mention I saved a bunch of money!!!! New Break System from front to back, new Trailer Winch. Thanks, Customer for life! 681682



- DM8758811
by:

Good Item 432544


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Info for this part was:

Written by:
Lindsey S
Installed by:
Jeff D
Updated by:
Laura H

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