CURT Replacement CrossWing 5th Wheel Coupler Tube Model 19280CURT Replacement CrossWing 5th Wheel Coupler Tube Model 19280 This replacement coupler tube is for the CURT CrossWing 5th wheel hitch for gooseneck. It is designed to replace the existing tube that allows the hitch to be mounted onto a gooseneck ball. This package comes with the tube and hardware. The hitch and other components are not included. Fits CrossWing 5th wheel hitches for gooseneck setup (#16051, #16602) Couples hitch to gooseneck ball