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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 Brake Actuator w/ Electric Lockout - Painted - Disc - 2-5/16" Ball - 20,000 lbs
Dexter

Dexter Brake Actuator w/ Electric Lockout - Painted - Disc - 2-5/16" Ball - 20,000 lbs

Part Number: T4750520
$931.58
Brake Actuator
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Weld-on, surge-type actuator includes a standard, heavy-duty coupler. Electric reverse lockout lets you back up without activating the trailer brakes. Unique roller design helps reduce resistance. 1-800-940-8924 to order Dexter brake actuator part number T4750520 or order online at etrailer.com. Free expert support on all Dexter products. Great prices and Fastest Shipping for Dexter Brake Actuator w/ Electric Lockout - Painted - Disc - 2-5/16" Ball - 20,000 lbs. Brake Actuator reviews from real customers.
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Dexter Brake Actuator - T4750520

Highlights

  • Back Up Without Brake Drag: Electric lockout stops brakes from engaging in reverse.
  • Handles Big Loads: 20,000 lb capacity and 2,000 lb max tongue weight for heavy-duty towing.
  • Smooth, Straight Braking: Roller design reduces resistance for even, straight-line movement.
  • Built for Tough Use: Sturdy steel body resists bending if the trailer jackknifes.
  • Ready for Disc Brakes: Hydraulic actuator syncs trailer brakes with vehicle deceleration.
  • Simple Weld-On Mount: Fits 3" channel tongues for secure, permanent installation.

Features to know about

Smooth Stops for Heavy Loads: Hydraulic Power with 20,000 lbs Capacity

This actuator delivers serious braking muscle for demanding setups. It’s rated for 20,000 lbs GTW and 2,000 lbs maximum tongue weight, so it’s built to handle heavy equipment or large trailers without hesitation. The hydraulic system synchronizes your trailer brakes with your tow vehicle’s brakes, turning forward momentum into smooth, reliable stopping power. You get consistent braking performance every time without the need for complicated electronics.

No More Brake Drag When Reversing: Built-In Electric Lockout

Backing up is simple thanks to the built-in electric reverse lockout. When your tow vehicle is shifted into reverse, the solenoid automatically prevents the actuator from engaging the trailer brakes. That means you can back up inclines or maneuver tight spaces without fighting brake resistance. The lockout is protected by a built-in shield that keeps the solenoid safe from the elements, so it stays dependable trip after trip.

Built to Last: Heavy-Duty Steel with Primed Finish

The actuator’s sturdy steel body is designed to stand up to tough use and resist bending in jackknife situations. Its primed finish gives you a solid base for painting or added protection against corrosion. This strong construction helps ensure long service life even in rugged work or marine environments.

Straight-Line Performance: Unique Roller Design

Inside, a unique roller setup keeps the actuator telescoping smoothly under load. By reducing resistance, it keeps everything moving in a straight line when braking force is applied, which helps maintain balance and control on the road. The result is a more stable and predictable towing experience under both heavy and light braking.

Secure and Simple Mounting: Weld-On Installation for 3” Channel Tongues

Designed for a 3" wide channel tongue, this actuator uses a weld-on mounting style that locks it firmly in place. The standard heavy-duty 2-5/16" ball coupler is ready to take on big jobs, and the included breakaway kit adds an extra layer of safety in case the trailer ever disconnects. Once welded, it becomes part of your trailer’s frame—clean, solid, and ready for action.

Specs

Application

  • Application: disc brakes

Ball Size

  • Ball size: 2-5/16"

Mounting

  • Mounting: 3" wide channel tongue

Weight and Capacity

  • Capacity: 20,000 lbs
  • Maximum tongue weight: 2,000 lbs

Warranty

  • Warranty: 1-Year warranty

068-505-20 Dexter Axle Model 20 Actuator with 2-5/16" Ball Coupler - Disc Brakes - Solenoid Lockout and Cover- Primed Finish

Replaces Titan 4750520





Ratings & Reviews

5.0

1 reviews
Review sort icon
Weld-on, surge-type actuator includes a standard, heavy-duty coupler. Electric reverse lockout lets you back up without activating the trailer brakes. Unique roller design helps reduce resistance.

by:

It works as well as I expected it should. I really have nothing to say other than I am happy with it.


1
1

See what our Experts say about this Dexter Brake Actuator

  • Will the Titan T4750820 Actuator Replace Global Direct Components GDC-120 Without Drilling New Holes
    Since the Titan Zinc-Plated Brake Actuator # T4750820 that you referenced has a weight capacity of 12,500 lbs and a tongue weight capacity of 1,250 lbs it will serve well as a replacement actuator for your application. The mounting holes are spaced differently than what you show which means you will need to drill new holes into your trailer tongue. Your mounting holes are spaced in a straight line where the mounting holes for the Titan actuator form more of an arc. Instead of the Actuator...
    view full answer...
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  • Replacement 5-Way Wiring and Surge Brake Actuator for Zieman Boat Trailer
    Thank you for reaching out and the photos! From what I'm seeing it looks like you need the Dexter Axle Disc Actuator 12.5K # T4749620 or 20K # T4750520 depending on the weight rating of your current actuator. These have similar coupler features, include the electric lockout, and are weld-on applications so you'll have to have your current setup cut off and this welded in it's place. We have some parts for drum brakes as well but they are a little different so if you have drum brakes on...
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • 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...
  • Will The Titan Brake Actuator T4750520 Work With Titan Disc Brake Assembly THRCM13378DACEK
    For a surge style set up, the Titan Disc Brake Actuator # T4750520 will definitely be a good actuator. This will also work in unison with the Titan Disc Brake Assembly # THRCM13378DACEK without issues. This does utilize an electric lockout making backing up a lot easier as well. If you wanted to go with an electric over hydraulic set up, the HydraStar # HBA16 would be a great option. That being said, to activate an electric over hydraulic actuator, you will need a brake controller like...
    view full answer...

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Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Adele M
Updated by:
Adele M
Employee Wilson B
Updated by:
Wilson B
Employee Hannah L
Updated by:
Hannah L
Employee Michael B
Updated by:
Michael B
Employee Manda E
Updated by:
Manda E

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