MASTER LOCK COUPLER LOCK Fits 2 5/16" coupler This model is ideal for

This model is ideal for single axle and tandem axle 5 lug boat trailers

If your Hydraulic Trailer Disc Brake Actuator is not performing optimally

The solenoid then closes the brake fluid port and allows the trailer to back up without locking the trailer brakes by preventing brake fluid from reaching the brakes on the trailer

Tee fitting connects 3 hydraulic brake lines

Overall Length 27" with 5/16" Link Diameter Includes S Hook 7

MASTER LOCK COUPLER LOCK Fits 2 5/16" coupler This model is ideal forMASTER LOCK COUPLR LOCK 2 5 16 Fits 2 5 16" couplers with flat flange around ball cavity Adjusts to fit many makes and models