381-7063 CAM was intended for use with Gen 5 and older Hydrastar (4 wires)
The Hydrastar Controller Adapter Module (CAM) circumvents the lack of technology in some brake controllers to allow the Hydrastar hydraulic trailer brake actuator to communicate with the tow vehicle, resulting in proper brake function. By installing the Hydrastar CAM, the Hydrastar line of hydraulic trailer brake actuators are compatible with all tow vehicle brake controllers.
