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  1. Brake Actuator
  2. Dexter
  3. Surge Brake Actuator
  4. Drum Brakes
  5. Channel
  6. 12500 lbs GTW
Dexter Brake Actuator w/ Electric Lockout - Drum - Zinc - 5 Position Adjustable Channel - 12.5K
Dexter

Dexter Brake Actuator w/ Electric Lockout - Drum - Zinc - 5 Position Adjustable Channel - 12.5K

Part Number: T4857320
$623.27
Brake Actuator
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Bolt-on surge brake actuator with adjustable drop channel lets you mount a coupler (sold separately) in 1 of 5 positions to fit your application. Electric lockout lets you back up without activating trailer brakes. Roller design reduces resistance. 1-800-940-8924 to order Dexter brake actuator part number T4857320 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 - Drum - Zinc - 5 Position Adjustable Channel - 12.5K. Brake Actuator reviews from real customers.
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Dexter Brake Actuator - T4857320

Highlights

  • Smooth, Automatic Braking: Hydraulic surge system applies drum brakes as you slow down.
  • Back Up Easily: Electric lockout stops brakes from engaging when reversing.
  • Perfect for Heavy Loads: Rated for 12,500 lbs GTW and 1,250 lbs tongue weight.
  • Built for Harsh Use: Zinc-plated steel resists corrosion and bending.
  • Adjusts to Fit Your Setup: 5-position drop channel lets you match coupler height.
  • Added Safety: Breakaway kit engages brakes if the trailer disconnects.
Made in USA

Features to know about

Back Up Smoothly: Built-In Electric Lockout

The electric lockout makes backing up simple, even on slopes or tight spots. When you shift into reverse, the solenoid automatically stops the actuator from engaging the brakes. There’s no need to get out and flip a switch or insert a pin. It wires right into a 5-pole flat, 6-way round, or 7-pole connector so the system knows when you’re in reverse. The built-in shield keeps the solenoid protected from dirt and moisture for dependable operation every time.

Level Towing Made Easy: 5-Position Adjustable Channel

Getting your trailer to sit level is easier with the offset adjustable channel. It has five mounting positions that let you position your coupler (sold separately) exactly where you need it. The built-in drop is especially useful for tall trailers, letting you line things up with your hitch for a proper level setup. Whether you’re using a ball coupler, lunette ring, or clevis attachment, this flexible design keeps your trailer balanced and stable.

Strong and Steady: 12,500 lbs GTW Steel Construction

Built from sturdy steel, this actuator is designed to handle up to 12,500 lbs gross towing weight and 1,250 lbs maximum tongue weight. The zinc-plated finish stands up to corrosion and road grime, making it a solid choice for boat and utility trailers alike. The roller design inside reduces resistance during telescoping, keeping movement straight and smooth even under heavy braking.

Bolt-On Convenience: Quick to Install on 3" Tongues

Installation is straightforward thanks to its bolt-on design that fits a standard 3" wide straight trailer tongue. You can mount it using existing holes or minimal modification, so setup takes less time. Once bolted on, the actuator operates as a self-contained hydraulic system that responds instantly when your tow vehicle slows down—no complicated adjustments needed.

Peace of Mind on the Road: Built-In Breakaway Kit

For extra safety, a breakaway kit comes built in. If your trailer ever disconnects unexpectedly, the system automatically applies the brakes to bring it to a stop. It’s one less thing to worry about when towing heavy loads or traveling long distances.

Specs

Application

  • Application: trailers with hydraulic drum brakes

Weight and Capacity

  • Gross towing weight: 12,500 lbs
  • Maximum tongue weight: 1,250 lbs

Mounting

  • Mounting: straight, 3" wide trailer tongue

Warranty

  • Warranty: 1-Year warranty

068-391-00 Dexter Axle Model 10 Brake Actuator w/ Electric Lockout and 5-Position Leveler Channel - Drum - Bolt On - 12,500 lbs

Replaces Titan 4857320





Ratings & Reviews

5.0

3 reviews
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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

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