The Hydrastar electric over hydraulic (EOH) trailer brake actuator gives you the reliability and confidence you expect and need from your trailer braking system. With Hydrastar you get the fastest response time for shorter stopping distance, so in emergency situations and in your day to day towing, you can control those precious fractions of a second that matter when it comes to stopping your trailer. This unit is the ultimate in control and safety with the quickest response time and the lowest current draw of any actuator on the market. The HydraStar eliminates the brake drag common with surge actuators on down hill grades and also works easily in reverse. It is easy to operate, the trailer brakes engage when the tow vehicle brake pedal is applied or over-ridden by an in-cab controller.

  • Sealed, extruded, anodized aluminium housing
  • Dimensions: 11.8″ L x 3″ W x 7.3″ H
  • Trailer Mounted
  • 12V DC operation
  • Solid state electronics
  • Uses DOT 3 or DOT 4 brake fluid
  • Easy to install
  • Available in 1000, 1200, and 1600psi
  • for any trailer configuration with 1-3 axles
  • Meets all DOT regulations
  • Complies with CFR-393 braking requirements

Additional information


Black – Constant Power
Blue – Brake Controller
White – Ground
Yellow – Break-Away