Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 8K
(6 reviews)
Price: $406.50
In Stock
Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 8K
Item # DM8750311
Retail:$419.92
Our Price: $406.50
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Demco Brake Actuator - DM8750311
- Surge Brake Actuator
- Disc Brakes
- 2-5/16 Inch Ball Coupler
- 8000 lbs GTW
- Bolt-On
- 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 both sides 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: 8,000 lbs
- Maximum tongue weight: 800 lbs
- Mounting: straight, 3" wide trailer tongue
- Drop: 4"
- Model number: DA91
- 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.
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.
8750411 Demco DA91 Hydraulic Trailer Brake Actuator for Disc Brakes - Electric Lock-Out - 2-5/16" Easy-Latch Drop Coupler - 8,000 lbs
Replaces Demco 8750311
Customer Satisfaction Score:
89% were satisfied with this product
11% of customers were not satisfied
- Wrong item was ordered
- Manufacturer issue
Customer Reviews
Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 8K - DM8750311
Average Customer Rating: 5.0 out of 5 stars (6 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.by: John 03/22/2023
Though I received the item very quickly I have yet to install it. I doubt there will be any issues at this point. I would like to however praise this company for it’s great prices and quick shipping. I live in NE Ohio and I actually received the actuator in < 48 hrs from the time it was ordered. it arrived here at my home before or around Noon today 2 days after I first discussed doing business here. I plan to make other purchases from them soon. Great Service!!!
by: Erik09/08/2023
by: Donald 08/31/2023
by: Kurt 04/23/2024
by: Peter 06/05/2023
by: John 09/30/2021
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See what our Experts say about this Demco Brake Actuator
- Replacement Hydraulic Brake Actuator For Tie Down Engineering LP8000The Demco Hydraulic Brake Actuator # DM8750311 can be used to replace your Tie Down Engineering LP8000 actuator. The Demco comes with an electric lockout like you are wanting. It is zinc coated for corrosion resistance and fits a 2-5/16" hitch ball. This actuator is made in the USA and fits 3" wide straight trailer tongues.
view full answer... - Are Replacement Parts Available for a Tie Down Engineering LP8000The Tie Down Engineering LP8000 actuator isn't something we have direct replacement parts for. While we do have replacement solenoids and rebuild kits for some of the actuators we carry, I have no way of verifying whether this will fit your actuator so I recommend replacing the entire actuator to something that's still in production so you can get replacement parts easier in the future. For your application I recommend going with the Demco Hydraulic Brake Actuator w/ Drop and Electric...
view full answer... - Can Demco Hydraulic Brake Actuator Electric Lockout # DM8750311 be Used on Tandem Axle TrailerYes, the Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout # DM8750311 will easily handle 4 brake assemblies like what a tandem axle trailer has.
view full answer... - Replacement Actuator for Tie Down TDE LP8000The Demco Hydraulic Brake Actuator # DM8750311 can be used to replace your Tie Down Engineering LP8000 actuator. The Demco comes with an electric lockout like you are wanting. It is zinc coated for corrosion resistance and fits a 2-5/16" hitch ball. This actuator is made in the USA and fits 3" wide straight trailer tongues.
view full answer... - What Kind of Lockout Solenoid is on the Demco Hydraulic Brake Actuator DM8750311The reverse lockout solenoid on Demco coupler # DM8750311 is the bypass type, normally closed. I have included a picture showing it. You can see the hose that runs back to the master cylinder.
view full answer...
- Recommended Hardware for Installing Demco Brake Actuating CouplerThe Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 8K # DM8750311 has 5 holes for adjustability and fit with the majority of couplers. The weight rating is based on utilizing all of the bolt holes to secure a coupler of this size. It is recommended to use five 1/2" x 4-1/2" Grade-5 bolts which are not included. Unfortunately we don't have those bolts but your local hardware store will have them readily available.
view full answer... - Mounting Hole Dimensions of Demco DA91 Surge Brake ActuatorI attached a picture that shows all of the mounting hole dimensions pointed out as well as a second picture that shows the distance from the front mounting hole to rear of shroud on the Demco DA91 # DM8750311 you referenced.
view full answer...
- How To Bleed The Brakes With A Demco Hydraulic Brake Actuator DA91 To bleed the brake lines with your Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout # DM8750311 you'll need to complete the following steps: 1. First raise the tongue of the trailer 4" to 6". 2. Loosen or remove two 5/16” bolts that hold the lever guide and flat emergency lever spring. 3. Remove the master cylinder fill cap. 4. Using short strokes, pull forward on emergency lever, pumping master cylinder until brake fluid in master cylinder reservoir stops bubbling. 5....
view full answer... - Replacement Pontoon Boat Trailer Surge Brake Actuator With Drop CouplerI recommend using the Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout # DM8750311. This actuator has a 4" drop that will help you attach to you truck without the need for such a large adjustable receiver. It will work with your single disc brake axle and features a electric reverse lockout like your current actuator. To this I recommend adding the Manual Reverse Lockout Kit # DM5939. This will allow you to disconnect the electrical and still ensure your brakes will remain...
view full answer...
- Replacement Options For Tie Down Engineering LP8000 Disc Brake ActuatorThere are a couple options to replace the 8,000 lb TDE LP8000 disc brake actuator (though not just the inner member). One is from Dexter and the other Demco: - Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout - Disc # DM8750311 - Dexter Zinc-Plated Brake Actuator w/ Electric Lockout - Disc # T4747220 Both attach to a 2-5/16" hitch ball and fit a 3" wide trailer tongue; the biggest difference is the Demco gives you a built-in 4" drop while the Dexter does not.
view full answer... - How to Use the Coiled Adapter 7-Way to 5-Flat Part # HM47025 with a Reverse Lockout SolenoidI assume you are referring to the reverse lockout solenoid wire and if that is the case then you would need to wire or check that the trailer side trailer connector has this wire on the far left pin which you can see in the attached photo of similar to the Hopkins Coiled Adapter 7-Way Flat Pin Blade to 5-Flat # HM47025. This pin should then match up with the reverse light circuit on your vehicle's 7-way.
view full answer...
- DA91 Demco Disc Brake Actuator for 2-5/16 Hitch Ball with Electric Lockout NeededThe DA91 Demco surge brake actuator that you are looking for is part # DM8750311. This has a 2-5/16" coupler, comes with an electric lockout, is designed for disc brakes, and has a weight capacity of 8,000 lbs towing and 800 lbs tongue weight.
view full answer...
Do you have a question about this Brake Actuator?
Info for this part was:
Edited by:
Leah B
Written by:
Lindsey S
Expert Research:
Michael H
Expert Research:
Jameson C
Installed by:
Jeff D
Updated by:
Laura H
Updated by:
Carrie F
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