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  1. Brake Actuator
  2. Dexter
  3. Surge Brake Actuator
  4. Disc Brakes
  5. 2-5/16 Inch Ball Coupler
  6. 20000 lbs GTW
Dexter Hydraulic Brake Actuator w/ Lockout Shield - Disc - Zinc - 2-5/16" Ball - 20K
Dexter

Dexter Hydraulic Brake Actuator w/ Lockout Shield - Disc - Zinc - 2-5/16" Ball - 20K

Part Number: T4854110
In Stock
$791.73
Brake Actuator
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Surge brake actuator bolts onto a 4" wide trailer tongue and includes a heavy-duty coupler. Zinc plating resists corrosion. Efficient roller design helps reduce resistance. Built-in cover shields solenoid valve (sold separately). 1-800-940-8924 to order Dexter brake actuator part number T4854110 or order online at etrailer.com. Free expert support on all Dexter products. Great prices and Fastest Shipping for Dexter Hydraulic Brake Actuator w/ Lockout Shield - Disc - Zinc - 2-5/16" Ball - 20K. Brake Actuator reviews from real customers.
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Dexter Brake Actuator - T4854110

  • Surge Brake Actuator
  • Disc Brakes
  • 2-5/16 Inch Ball Coupler
  • 20000 lbs GTW
  • Bolt-On
  • Farm Trailer
  • Boat Trailer
  • Construction Trailer
  • Travel Trailer
  • Utility Trailer
  • No Lockout
  • Dexter
  • 3 Inch Channel Tongue

Surge brake actuator bolts onto a 4" wide trailer tongue and includes a heavy-duty coupler. Zinc plating resists corrosion. Efficient roller design helps reduce resistance. Built-in cover shields solenoid valve (sold separately).


Features:

  • Hydraulic actuator activates trailer's brakes when tow vehicle slows or stops
  • Built-in shield for electric-lockout applications (solenoid valve sold separately)
  • Trigger latch allows for safe and easy coupling and uncoupling
    • Circle grip makes latch simple to use
    • Pull back on trigger to open ball socket
  • Unique roller design reduces resistance during telescoping to create straight-line movement
  • Sturdy, durable steel construction resists bending in jackknife situations
  • Corrosion-resistant zinc-plated finish
  • Breakaway kit included
  • Bolt-on installation


Specs:

  • Application: trailers with disc brakes
  • Gross towing weight: 20,000 lbs
  • Maximum tongue weight: 2,000 lbs
  • Ball size: 2-5/16"
  • Mounting: straight, 4" wide trailer tongue
  • 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 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 the trailer's brakes.




068-257-01 Dexter Axle Model 20 Brake Actuator w/ Lockout Shield and 2-5/16" Ball Coupler - Disc - 20,000 lbs

Replaces Titan 4854110




California residents: click here


Video of Dexter Hydraulic Brake Actuator w/ Lockout Shield - Disc - Zinc - 2-5/16" Ball - 20K

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




Video Transcript for Review of Dexter Brake Actuator - Hydraulic Brake Actuator With Lockout Shield - T4854110

Hi everybody. Andy here with etrailer. Let's take a quick look at this Dexter hydraulic brake actuator with lockout shield. Now this trailer disc brake actuator is built for serious towing, especially if you're hauling heavier loads. This is rated for up to 20,000 pounds of gross trailer weight and 2,000 pounds of tongue weight. So this is gonna be more than capable for those larger trailers.

And hooking up your trailer is going to be pretty straightforward as well. This uses a trigger style latch with a circular grip, so coupling and uncoupling is going to feel secure, but it doesn't take a whole lot of effort. Let's see if I can give you a brief demonstration of that. So I'm just going to lift this up and then that's going to open that up and allow me to insert my two and five 5/6ths inch ball. And then I'm just going to bring this back down.

And as you can see, I am fully connected there. And then when I'm ready to uncouple with that back up, and so that's how simple this is going to be. Now, one thing that a lot of folks like about this actuator is the durability. This is made from zinc plated steel, so that's gonna help protect it from rust and corrosion. It's gonna be especially useful if you're around water or dealing with wet conditions a lot.

And there's also this built-in shield to protect the solenoid valve, which you buy separately. That's gonna help prevent damage from road debris or general wear and tear. Installation wise, this is gonna be ready to bolt onto a standard four inch straight trailer tongue. So it's gonna fit many setups without much hassle. The overall length, just a rough measurement here, just end to end real rough, real basic, about 36 and a half inches end to end.

And then if you're wondering about the height, again, just kind of a rough measurement, I just kind of want to give you the idea for the size here, just from the lowest part to the tallest point here, a little over 11 inches, it looks like. Now, this does not include a reverse lockout. That means that if your trailer doesn't have free backing brakes, the brakes could engage when you're reversing. So ideally, you'll want to pair this with free backing brakes to avoid that issue. And this is also has a breakaway kit, as you can see here. So you're just going to hook this chain up to your tow vehicle. And in case of a runaway situation, this chain will pull and activate the brakes, prevent a trailer runaway situation in case of an accidental trailer disconnect. I think that's gonna wrap up our look today. If you have any questions, don't hesitate to reach out to us. If you want any help with installation on this product page, we have a link underneath the photo section that you can click that will take you to our installer locator, answer the questions that it has for you, and that locator will find an installer in your area that etrailer has partnered with to install this for you. Well, again, my name's Andy. Thank you for joining me.

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See what our Experts say about this Dexter Brake Actuator


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Wilson B
Updated by:
Wilson B
Employee Hannah L
Updated by:
Hannah L
Employee Manda E
Updated by:
Manda E
Employee Amanda M
Written by:
Amanda M
Employee Andy C
Installed by:
Andy C

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