1600psi Hydrastar Hydraulic Electric Brake Actuator – 34928


Frequently Bought Together

Rubber Wheel Chock - Trailer Stabilisation

3/8-inch Hydraulic Caliper Brass Adaptor - 313003

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1600psi Hydrastar Hydraulic Electric Brake Actuator

1600psi Hydrastar hydraulic electric brake actuator generation 7 suits boat tandem trailers from 3200kg to 4500kg.

How to Select the Correct Actuator

  • 1000 PSI Actuators are suitable for trailers under 2000kg (Couplemate does not sell this model)
  • 1200 PSI Actuators are ideal for trailers UP TO 3200kg
  • 1600 PSI Actuators are suitable for trailers UP TO 4500kg

The brake controller controls the maximum hydraulic pressure applied to the brakes.

The Hydrastar actuator pump requires a 12-volt DC Tekonsha P2 or P3 hard-wired controller. Check with your brake controller supplier for suitability.

The Tekonsha iPrimus is not suitable when used with hydrastar controllers.

An electric over-hydraulic actuator requires an electric brake controller to send a signal to work a hydraulic pump actuator. Hydraulic brakes are used on boat trailers weighing over 2000kg.

Question: What type of hydraulic braking system suits the Hydrastar Actuator

Answer: The Hydrastar Actuator is ideal for controlling the following disc braking systems.

Also, consider your disc pads to improve braking efficiency.

ceramic disc pads

Why do I need this type of brake controller?

The Law requires trailers over 2t to install a breakaway kit on their trailer or caravan.

Couplemate has good stocks of this product and ships from Brisbane.

Carlisle offers a 2-year warranty on all HydraStar units against faulty craftsmanship. Warranty issues are handled here in Australia.


  • 1200 psi to suit boat trailers from 2t to 3.5t – Installation Instructions and Wiring Diagram Downloadable after Purchase.
  • 1600 psi to suit boat trailers over 3.5t and up to 4.5t. Installation Instructions and Wiring Diagram are Downloadable after Purchase.

Hydrastar Actuator Specifications

  • Application: single or tandem-axle trailers with disc brakes
  • Maximum output pressure: 1,200 – 1,600 psi
  • Power: 12V DC
  • Hydraulic port size: 3/16 inch
  • Dimensions: 11-3/4 inch long x 3-inch wide x 7-3/8 inch tall
  • Wire configuration:
    • Black: 12-volt power
    • Blue: brake controller
    • Yellow: breakaway
    • White: ground
  • 2-Year limited warranty

What is a Breakaway Kit

A breakaway kit applies brakes for not less than 15 minutes if the trailer disconnects from the tow vehicle.

We try to get your purchase into transport systems like Australia Post and Startrack Express as quickly as possible.

Breakaway kits and spares are available here.

Purchase Hydrastar replacement trailer parts and spares here

Couplemate recommends the use of a stainless braided SAE hydraulic hose. Bundy tube or steel tube can become damaged and, as a result, restrict the flow of brake fluid.

SAE stands for Standard American Equipment, which has passed tests according to American Standards.

The braided hose is flexible and poly-coated for a long life. Copper tube olive ends with short brass locking nuts.

Equipment like Alko and Trojan disc calipers requires an olive adaptor nut with a copper washer to seal hydraulic connections properly.

Further, the manufacturer guarantees Hydrastar 1200 and 1600 psi for two years. However, water ingress from fresh or salt water is not covered.

Finally, a stainless braided hydraulic hose is an excellent investment for connecting the  Hydrastar brake actuator to the hydraulic calipers.

Additional information

Weight6 kg
Dimensions40 × 20 × 10 cm

Our Service Lifetime Warranty

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

Couplemate™ is a manufacturer and vendor of high-quality towing, trailer, and caravan components. Couplemate™ Core Goods and Custom Work are guaranteed to be free of defects for the service lifetime of the product when used as intended.

Warranties are non-transferrable and Couplemate™ requires satisfactory proof of purchase prior to issuing a remedy. The full Couplemate™ Warranty Policy can be found in the Terms & Conditions: Section 8 – Consumer Guarantees & Warranty.

Warranties are in addition to your rights under the Australian Consumer Law. If something is wrong with your order, please contact our team.

60-Day Returns

After 60 years of experience, we know that life has its unpredictable moments.

All Couplemate™ orders (online, over the phone, or in-store) have a 60 day period for change-of-mind returns and exchanges. There are some items that can’t be returned and some returns may incur a 15% restocking fee.

You can view our full policy for change-of-mind returns here.


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