This all aluminum replacement Master Cylinder works with all UFP Hydraulic Disc Brake Actuators including the UFP A-60, A-70, C-70, A-75, A-84 & A-160.  A reverse solenoid valve drain tube (34508) is included with a mini barb fitting (32570). A Trailer Master Cylinder is a hydraulic device inside the trailer brake actuator that supplies brake fluid under pressure to the trailers brakes in proportion to an input force.

• Aluminum master cylinder is desinged for use in the marine environment.
• Reverse valve drain tube included and ready to use with electric reverse solenoid
• Sealed master cylinder reservoir
• Diaphragm barrier inhibits moisture from entering the reservoir to contaminate brake fluid and corrode brake components.
• Brake fluid cannot escape from the reservoir and damage the trailers paint
• The reservoir cap is recessed to prevent damage.
• Compatible with all UFP Disc Brake Actuators