Feature(may vary by option.)

●【DESIGN OBJECT】Kingpin adapter specially designed for trailer fifth wheel, Allows you to tow a gooseneck trailer with a semi-tractor or other truck with a fifth-wheel deck. The middle disc of the fifth wheel to gooseneck adapter is 8 inches in diameter, which can better withstand the traction of the trailer when driving on the road, and the use of spacers can better solve the possible shaking problem.
●【RELIABLE TOWING】Our fifth wheel to gooseneck adapter is safety tested, tested according to SAE J2638 safety specifications and rated to tow a total trailer weight of up to 30,000 lbs. Perfect for large fifth wheel trailers and gooseneck trailers!
●【STABLE STRUCTURE】The Kingpin to gooseneck ball adapter has a sturdy 2-inch forged pin, 2-5/16-inch gooseneck ball, and 1/2-inch bolt. One-piece machining is sturdy and durable, providing a tight fit without bumps. The surface of the kingpin adapter has a special coating, which is corrosion-resistant and can withstand the test of time and weather!
●【EASY INSTALLATION】The fifth wheel to gooseneck ball adapter allows your gooseneck trailer to be towed by the fifth wheel tow frame, no need to weld or disassemble the truck bed, installation only takes a moment. Some pickup type fifth wheels rotate 360° and may not be blocked or locked, so our adapter may not work in these cases.
●【PLEASE NOTE】 Sometimes if the trailers gooseneck is offset you may need to block your fifth wheel plate to keep it from tilting/articulating. You may also have to adjust the main post of your gooseneck trailer to allow the trailer to ride level.
●【AFTER-SALES GUARANTEE】We provide a 365-day quality guarantee for the gooseneck ball adapter. If you encounter any problems while using the kingpin adapter, you can contact us through Amazon customer service or Q&A, and we will respond within 12 hours. Shop risk-free. Customer satisfaction is our tireless pursuit.

[KIT -60639]




[Kingpin To 2-5  & 16   Gooseneck Ball Adapter]




[KIT - GNXA2062]




[KIT - GNXA2061]




[KIT - 30137]





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Product information