30K Lbs GTW Gooseneck to 5th Wheel King Pin Adapter – Fits 4" Round Tube Gooseneck Trailers, Converts for 5th-Wheel Hitch Towing, Heavy Duty Reinforced Rib Design, 5th wheel lube plate included — Open-Box, 10% Off

Cost-Saving Compatibility Solution – No need to install a full gooseneck hitch system hitch for your pickup This adapter converts your gooseneck trailer’s 4" round tube to a 2" standard kingpin interface, letting your existing 5th-wheel hitch tow the gooseneck trailer seamlessly

Easy Bolt-On Installation – No welding, cutting, or professional modifications required! Replace the original gooseneck ball coupler on your trailer’s 4" round tube with basic hand tools in 15 minutes. Perfect for truck owners who prefer hassle-free at-home upgrades

Heavy-Duty Load Capacity for Reliable Towing – Built with heavy duty carbon steel, this adapter boasts a 30,000 lbs GTW (Gross Trailer Weight) and 4,500 lbs tongue weight rating. Ideal for hauling heavy cargo, farm equipment, and construction materials without wobbling or failure

Dual-Towing Flexibility Without Hitch Removal – Keep your pickup’s 5th-wheel hitch intact while gaining the ability to tow gooseneck trailers. Switch between 5th-wheel RVs and gooseneck flatbeds in minutes—no repeated uninstallation/installation, perfect for multi-purpose towing needs

Precision Fit for 4" Round Tube Trailers – Engineered with a tight 0.5mm gap tolerance to fit all standard 4" round tube gooseneck trailer frames. Eliminates towing noise and instability at high speeds, ensuring a secure, smooth ride whether on highways or rough off-road terrain

30K Lbs GTW Gooseneck to 5th Wheel King Pin Adapter – Fits 4" Round Tube Gooseneck Trailers, Converts for 5th-Wheel Hitch Towing, Heavy Duty Reinforced Rib Design, 5th wheel lube plate included