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  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 - 16K

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

Item # DM8164311
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Retail:$629.99
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Brake Actuator
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Shipping Weight: 71 lbs
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Demco 2-5/16 Inch Ball Coupler Brake Actuator - DM8164311
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Surge actuator has a corrosion-proof composite master cylinder and 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. 1-800-940-8924 to order Demco brake actuator part number DM8164311 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 - 16K. Brake Actuator reviews from real customers.
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  • Reviews (4)
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Demco Brake Actuator - DM8164311

  • Surge Brake Actuator
  • Disc Brakes
  • 2-5/16 Inch Ball Coupler
  • Bolt-On
  • 16000 lbs GTW
  • Electric Lockout
  • Straight Tongue Coupler
  • Demco

Surge actuator has a corrosion-proof composite master cylinder and 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 with corrosion-proof composite latch handle for simple, secure hookup and disconnect
    • Lets you hook up when latch is in closed position - just drop coupler over hitch ball and latch snaps 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
  • Durable steel construction with sturdy, reinforced outer casing
  • Zinc plating offers excellent corrosion resistance
    • 500-Hour salt spray rating - great for marine applications
  • 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: 16,000 lbs
  • Maximum tongue weight: 1,600 lbs
  • Mounting: straight, 3" wide trailer tongue
  • Drop: 4"
  • Model number: DA16
  • 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. Disengaging the coupler is just as effortless. Simply lift up the contoured handle and the coupler socket will automatically release its grip on the ball.


Demco eZ-Latch in Use

Sturdy, Corrosion-Resistant Construction

Made of sturdy steel, this hydraulic trailer brake actuator features a durable zinc finish that is designed to limit rust and corrosion. This finish has a 500-hour salt spray rating, making the actuator perfect for marine use. Even the master cylinder is made of a corrosion-proof composite to further ensure durability for marine applications. The eZ-Latch's sleek, ergonomically designed handle is also constructed of a durable composite material that's corrosion-proof, allowing it to withstand whatever the road and the elements dish out.



8164311 Demco DA16 Hydraulic Trailer Brake Actuator for Disc Brakes - Electric Lock-Out - 2-5/16" Ball Easy-Latch Drop Coupler - 16,000 lbs

Installation Details DM8164311 Installation instructions




Customer Reviews

Demco Hydraulic Brake Actuator w Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 16K - DM8164311

Average Customer Rating:  4.8 out of 5 stars   (4 Customer Reviews)

Surge actuator has a corrosion-proof composite master cylinder and 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:

Good product easy to install



by:

Great but has plastic flips on latch hope it lasts



by:

Good price and delivered promptly.



by:


4
4

Ask the Experts about this Demco Brake Actuator



  • How to Bleed Brakes and Install Demco Hydraulic Brake Actuator with Electric Lockout DM8164311
    The solenoid on the Demco Hydraulic Brake Actuator w Drop and Electric Lockout # DM8164311 will have two wires coming out of it, a ground wire and a power wire. You'll need to connect he power wire to the reverse circuit on the trailer connector. To ground the solenoid, you could either ground the wire to chassis (recomended) or connect to an existing solid ground connection. When your vehicle's in reverse, this solenoid will ensure that that hydraulic actuator does not activate your trailer...
    view full answer...
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  • Recommended Surge Brake Actuator W/ Drop To Replace 3 Bolt Actuator On Shorland'r Boat Trailer
    Thanks for the picture! I do have an option for you, but we do not have a surge brake actuator for disc brakes that uses 3 holes in the bottom flange like yours. Before replacing it with the Demco Hydraulic Brake Actuator # DM8164311 you were looking at, you will need to verify the weight of your loaded boat trailer. This actuator is rated for 16000lbs so you will want to make sure that is close to your loaded weight as having a coupler too overrated can cause decreased braking performance...
    view full answer...
    Image 1 for
  • How to Tell if Demco 16K Hydraulic Actuator Can be Used as Replacement for Dexter UFP A-160 Actuator
    The Demco Hydraulic Brake Actuator w Drop and Electric Lockout # DM8164311 is rated for disc brakes and it has the electric lockout so as far as compatibility goes those parts will match up. What you need to check on is the mounting bolt hole pattern. I've attached a photo showing the pattern for the Demco actuator for you to check out and compare with what you have. If the bolt holes match, great! If they don't you can either go with the actuator your trailer manufacturer recommends or...
    view full answer...
    Image 1 for
  • Is There a Way to Manually Lock Out Demco DA91 Actuator
    You can use the manual lock out part # DM5939 to manually lock out the Demco DA91 actuator part # DM8164311 that you referenced.
    view full answer...
  • Will Masterlock Coupler Lock Fit Demco EZ Latch Surge Actuator
    Yes, since the Masterlock coupler latch lock part # 2847DAT has a 1/4 inch diameter and has a usable span of up to 2-3/4 inches it would fit and work well on the Demco EZ latch style of surge actuator # DM8164311. I attached a review video for this lock for you to check out as well.
    view full answer...
  • Replacement Disc Brake Coupler for Load Rite Trailer Part 6080.44
    The Demco Hydraulic Brake Actuator w Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 12.5K # DM8104311 will work well as a replacement for your trailer as long as the capacity of the trailer is not greater than 12,500 lbs. My research showed that part rated for 16,500 lbs, so if you need a larger capacity coupler I recommend the Demco Hydraulic Brake Actuator w Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 16K # DM8164311 or the 20K # T4750520. These are bolt on replacement...
    view full answer...

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Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Laura H
Updated by:
Laura H
Employee Wilson B
Updated by:
Wilson B
Employee Jenny M
Updated by:
Jenny M
Employee Cole B
Installed by:
Cole B

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