The Standard 4" Square Trailer Coupler Tube with a 2 5/16" Coupler features a PopUp GN8 self-latching mechanism, making it easy to secure your trailer without the need to get into the truck bed. Its durable black powder coat finish and 28,000-pound rating ensure reliability and strength under heavy loads. This coupler tube also includes a cable assembly for remote release, adding convenience to your towing experience. At Trailer Parts 4U, we provide this reliable gooseneck part to enhance your trailer's safety and ease of use. Get yours today—contact us for the Standard 4" Square Trailer Coupler Tube with 2 5/16" Coupler.