Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 20K
(20 reviews)
Price: $625.55
In Stock
Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 20K
Item # DM8204311
Our Price: $625.55
In Stock
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- Reviews (20)
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Demco Brake Actuator - DM8204311
- Surge Brake Actuator
- Disc Brakes
- 2-5/16 Inch Ball Coupler
- 20000 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 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.
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
Installation Details
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
- Wrong item was ordered
- Did not fit
Customer Reviews
Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 20K - DM8204311
Average Customer Rating: 4.6 out of 5 stars (20 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: Thomas03/29/2022
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.
by: Trung10/06/2020
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.
by: David 12/20/2022
Perfect fit for direct replacement on my boat trailer
by: Charles 09/10/2022
Perfect replacement could have provided instructions it would have made it idiot proof.
by: Edward A05/11/2021
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.
by: John 11/18/2020
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 .
by: Luke 05/11/2023
THANK YOU FOR THE TIMELY SERVICE!!!
by: Jan 09/15/2020
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.
by: Harry 05/16/2021
Works as it should. Perfect!
by: Rick07/21/2022
Well made unit at a price that was better than anything else I could find. Very easy swap from my older damaged unit.
by: Robert 02/10/2021
I love it works great.
by: Cary07/10/2018
Great product support, great pricing, great shipping, value priced products. Long time customer and will continue forever!
by: Francisco04/28/2023
by: Jerome05/25/2016
Excellent service as always thanks Steve for all you help
by: David 12/30/2021
Extremely Happy!
by: Jeff 06/07/2023
by: Eric 02/15/2021
by: Corinne06/12/2021
by: Robert 09/13/2021
by: William 05/20/2021
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See what our Experts say about this Demco Brake Actuator
- Does Demco Hydraulic Actuator part # DM8204311 Have Torque SpecsThe Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout # DM8204311 does not have a torque spec listed for it. Instead you'd need to determine what the hardware you used torque specs are and go with that.
view full answer... - Recommended Replacements for Tie Down Engineering Model 20 ActuatorIf you're looking for a new coupler to replace a Tie Down Engineering Model 20, I recommend the Demco Hydraulic Brake Actuator part # DM8204311 which like the Model 20 has a 20,000 lb weight capacity designed for a 2-5/16" hitch ball. It uses a very similar mounting pattern so the install should be very easy. I have attached a photo below with the pattern so you can match up to your existing. I have also attached for you below a full list of our surge brake actuators which are suitable...
view full answer...
- Recommended Surge Brake Actuator For 17000lb TrailerTo replace your current 16500lb actuator with a heavier duty option I recommend the Titan Brake Actuator - Painted - Drum - 2-5/16" Ball - Weld On - 20,000 lbs # T1521000 if your trailer has drum brakes, or the Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 20K # DM8204311 if your trailer has disc brakes. Both of the options have a 20000lb towing capacity which is the next step up from the 16500lb actuator your currently have, and both will fit...
view full answer... - Parts Needed to Convert to 7,000 lb Disc Trailer Brakes From Electric Brakes on Boat TrailerHi Rick; thanks for the question and the info you provided, and the answer is yes, you can absolutely convert from electric brakes to disc brakes. Disc brakes give you the best overall stopping power, so it's something I definitely recommend. For a 7,000 lb axle and a 5-bolt mounting flange I highly recommend DeeMax brakes: - DeeMaxx Disc Brake Kit # DE53YR You'll need two of the # DE53YR for your tandem axle trailer, and the reason I like DeeMax is not only their superior rust resistance...
view full answer... - Triple Axle Brake Line Kit for Use with Demco Surge Actuator part # DM8204311 Yes the triple axle brake line kit part # HS496-253 is the correct brake line kit for your trailer with the Demco actuator part # DM8204311.
view full answer... - Availability Of Hydraulic Brake Actuator With 12,500 lb CapacityWe do offer several Hydraulic Brake Actuators with a 12,500 lb capacity like the Demco # DM8104311. This is made for trailers with disc brakes and it uses a 2-5/16" trailer ball. It will mount to a 3" trailer tongue. We do have options rated up to 20,000 lbs, like the Demco # DM8204311 if you need something stronger. If this is not exactly what you are looking for, feel free to reach out to me with more details and I am happy to help.
view full answer... - How to Bleed Disc Brakes When Installing DA20 Demco Hydraulic Brake ActuatorAttached is a clip from the instructions on how to bleed the brakes after installing the Demco Hydraulic Brake Actuator # DM8204311 that you referenced. You can use the Powerbuilt Brake Bleeder # ALL648591 to assist you in this process.
view full answer...
- Coupler Lock that Fits Demco Actuator part # DM8204311Yes, the Amplock hitch lock part # AMP34FR does work with the Demco Actuator part # DM8204311 that you referenced.
view full answer... - Recommendation on a Surge Coupler that is Rated to Work on a Trailer w/ Disc BrakesI found a surge coupler that will work well on your trailer. However, the part that you referenced, # DM8204011, is designed only to work with drum brake systems. Disc brake systems need higher psi for the calipers to activate the brakes and drum surge coupler cannot supply the correct pressure. I recommend the Demco Hydraulic Brake Actuator w/ Drop for Disc Brakes, # DM8204311. This surge coupler is almost identical to the one you referenced, except it is rated to be used with disc brakes.
view full answer... - Can Demco Disc Brake Actuator w/ Lockout & 20,000 lb Capacity Work w/ Drum BrakesDisc brake actuators like the Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 20K # DM8204311 cannot be used with drum brakes because disc brake actuators use much higher pressure, so they could blow out the wheel cylinders, among other issues. That said, you can add a lockout to the drum brake version of this actuator: - Demco Hydraulic Brake Actuator w/ Drop - Drum - Zinc - 2-5/16" Ball - 20,000 lbs # DM8204011 - Reverse Lockout Solenoid for...
view full answer... - Length of 20k Demco Hydraulic Brake Actuator DM8204311Yes I can; as you can see the mount portion measures 7 inches and the portion behind it measures 9-1/4 inches for the Demco disc brake actuator you asked about, which is the following part number: - Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 20K # DM8204311
view full answer...
- How To Bleed Brakes Using Demco DA20 Hydraulic Brake ActuatorI have attached for you below a photo which goes over the bleeding procedure for the Demco Hydraulic Brake Actuator part # DM8204311. I have also emailed you a copy of the installation instructions straight from Demco's site.
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
Installed by:
Jeff D
Installed by:
Andy C
Expert Research:
Jameson C
Updated by:
Laura H
Updated by:
Wilson B
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Harry H.
5/17/2022
Great