Dexter 8.4K 2-5/16" Inner Member Trailer Brake Actuator 099-384-20This inner member is a replacement for Dexter and Legacy UFP surge brake actuators. The Drop-N-Go coupler is easy to use and automatically latches in the open or closed position. Designed with an electric reverse lockout that lets you back up without actuating the trailer brakes. This is done by the electric solenoid activating when you shift into reverse.This actuator boats a weight capacity of 8,400lbs for medium to heavy towing applications. The 2-5/16" ball allows for a versatile range of existing trailer hitches. Designed for use with single or double axle trailers that utilize a hydraulic disc brake system.Benefits of the Disc Brake Actuator Electric Solenoid; Single or Tandem Axle Application; For Use with Hydraulic Disc Brakes; Drop-N-Go Coupler; Trailer Brake Actuator Specifications 2-5/16" Ball Size; 8,400lbs Capacity; This replacement inner member slide is designed for use with Dexer A-84 and Legacy UFP series brake actuators.