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How Does the Dexter Electric Over Hydraulic Trailer Brake Actuator Work


I currently have a Tie Down brake actuator that has a solenoid valve that is hooked up to the hydraulic line. There are disc brakes on the trailer. I think this is an over glorified brake actuator the is actually a hydraulic unit that works on surge? I am looking at the Dexter unit, but, am not sure as to how the dexter unit works? Does it have some type of a pump that puts hydraulic fluid to the brakes depending on how much voltage the brake controller puts out?

asked by: Andrew O

Expert Reply:

You are correct in your assessment of how the Dexter brake actuator works. The brake controller in the vehicle will send back a signal to the actuator and it will, in turn, apply the appropriate amount of hydraulic pressure to the trailer brakes.

The Dexter actuator has 4 wires to connect. I have included a diagram of how the unit will need to be wired. You will need a breakaway kit, if you do not already have one, for use with this unit. You can use # 34-285.

expert reply by: Michael H

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Products Referenced in This Question

Dexter Breakaway Kit - 9 amp/hour

Dexter Breakaway Kit - 9 amp/hour


Retail: $81.97

Price:  $77.95

Product Summary:

Kit Only

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Product Page this Question was Asked From

Dexter Electric Over Hydraulic Brake Actuator (1,600 psi)

Dexter Electric Over Hydraulic Brake Actuator (1,600 psi)

3 reviews


Price:  $724.95

Product Summary:

Electric-Hydraulic Brake Actuator
Disc Brakes

Product Specs:

1600 psi

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More Answers about Trailer Brakes

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