This heavy-duty RAM 30K Square Gooseneck Coupler is engineered for serious towing applications with a robust 30,000 lbs gross towing capacity. The weldable square tube design features a clever hidden spring latch mechanism that protects moving parts while ensuring smooth operation. Built for durability, it includes a reinforced welded belly band on the bottom of the outer tube for enhanced structural integrity. The coupler is designed to fit a 2-5/16 inch ball and measures 4-1/2 inches outside. For maximum security, it comes equipped with two set screws and a load-bearing pin that meets SAE J2638 standard requirements. The unfinished surface allows for custom painting or coating as needed. This professional-grade towing solution comes backed by a one-year warranty, making it ideal for heavy equipment transport, agricultural applications, or industrial hauling needs.