Demco Disc Brake Master Cylinder with Reverse Solenoid for Demco Actuators

This is a replacement Trailer Disc Brake Master Cylinder for Demco Brand Actuators, which comes with the Demco Electric Reverse Lockout Solenoid Preinstalled.  If your Hydraulic Trailer Disc Brake Actuator is not performing optimally, it may just be the Master Cylinder that is the issue.  Replacing the Master Cylinder can often cause a Hydraulic Trailer Brake System to work like new again, since you will have to empty all the lines and re-bleed the brakes, it is a good way to flush out any troubling parts and make sure everything is installed and working at peak performance.