Hydrastar Brakes: For Trailers Over 2000kg In Australia, 2500kg In New Zealand

Dunbier 40th Anniversary

Hydrastar Brakes: For Trailers Over 2000kg In Australia, 2500kg In New Zealand

What's stopping your trailer?

Hydraulic brakes with Dunbier's new 1200psi HYDRASTAR Trailer Brake Actuator

Step up to the next generation of hydraulic trailer brake actuators with the Hydrastar trailer mounted actuator. Unlike mechanical override brakes, the output from the Hydrastar actuator is adjustable from the driver's seat with electronic in-car controller to adjust the Hydrastar's output.

View Compatible Electronic Brake Controllers for use with Hydrastar

Download Service Manual On Carlisle Hydrastar

Vehicle Wiring Diagram

Download Customer Hydrastar Requirements 2222

Newly Updated 1200 PSI Hydrastar Actuator Offers

Faster response for reduced stopping distance
Simplified wiring - only 4 wires
Draws power only when brakes are applied - no need for accessory switch

Compare these Hydrastar Advantages

Sealed unit
Does not exceed tow vehicle manufacturers' wiring amp rating
Unit mounted bleeder fitting simplifies brake bleeding
Works from brake controller in-car. Inexpensive to fit

Vastly Superior to Override Brakes

Eliminates the feel of being pushed by trailer, problems with backing a trailer uphill and brake drag
Easily replaces override brakes on trailer

Superior to Override Brakes and Easy to Install

Easily replaces override, air/hydraulic and vacuum/hydraulic systems. To install, simply mount the Hydrastar to the trailer and attach the hydraulic line
Only 4 wires to connect, 3 wires go to the tow vehicle receptacle, the fourth goes to the breakaway switch
Unit mounted bleeder makes bleeding the brake lines easier
Includes detailed instruction manual

Note that the tow vehicle must be equipped with an industry standard electronic brake controller.

Easy to Operate

Engages trailer brakes when tow vehicle brake pedal is applied or when the in-car controller override is activated

Dunbier Part Numbers:

1938 - Hydrastar Braking System (Boxed)
1939 - Hydrastar Braking System (Assembled)
1940 - Trailer Mounting Bracket for Hydrastar
1942 - Electric Brake Controller