Fifth Wheel to Gooseneck Ball Adapter, Kingpin to Gooseneck Adapter with 2-5/16" Ball, 2" Kingpin, Lube Plate & PU Washer System, Heavy Duty 5th Wheel Hitch to Gooseneck Trailer Adapter

TOWGUARD Fifth Wheel to Gooseneck Ball Adapter A practical kingpin to gooseneck adapter designed to help truck owners use an existing 5th wheel hitch setup for gooseneck trailer towing. Designed for 5th Wheel Hitch to Gooseneck Trailer Conversion This adapter uses a 2" kingpin on the bottom to connect with a compatible 5th wheel hitch, while the 2-5/16" gooseneck ball on top connects with a gooseneck trailer coupler. It is built for users who need more towing flexibility without replacing the entire hitch system. What Is Included 1 x Gooseneck ball adapter body 1 x Lube plate 1 x Sloped polyurethane washer 3 x Flat polyurethane washers PU Washer System: More Than a Small Accessory During towing, the force on the connection is not only vertical. Braking, acceleration, turning, uneven roads, trailer movement, and load shifts can create side-to-side, fore-aft, rocking, and tilting forces at the connection point. The included polyurethane washer system adds a resilient support layer between the coupler and adapter. The 1 sloped washer and 3 flat washers help fine-tune the contact area, absorb multi-directional stress, reduce hard metal-to-metal contact, and support a quieter, more controlled towing feel. Lube Plate Included for Cleaner Contact and Reduced Wear The included lube plate helps reduce direct friction between the adapter and the 5th wheel hitch plate. It supports smoother contact, helps reduce surface wear over time, and provides a cleaner towing setup compared with relying only on loose grease at the contact point. Built for Real Towing Work This fifth wheel to gooseneck ball adapter is designed for real-world towing applications such as farm work, ranch hauling, equipment trailers, flatbed trailers, utility trailers, and other gooseneck trailer setups. The wide support plate, 2" kingpin, and 2-5/16" ball work together to create a dependable towing connection when properly installed and checked. Important Setup Reminder Before towing, always verify that the 2" kingpin is fully locked into the 5th wheel hitch, the 2-5/16" ball is properly seated in the gooseneck coupler, the washer setup is correctly positioned, and the contact surfaces are secure. Proper setup is important for towing stability, connection life, and a better towing experience. Choose TOWGUARD for a Better-Controlled Connection This is more than an adapter. With the included lube plate and PU washer system, TOWGUARD provides a more complete towing connection kit designed to help reduce friction, soften hard contact, control movement, and support long-term towing use. Need Help Before Towing? If you are unsure about fitment, installation, washer placement, or connection feel, contact the TOWGUARD support team before towing. We can help you confirm your setup and provide a faster solution if any product issue occurs.

• Fitment / Core Use Convert Your 5th Wheel Hitch for Gooseneck Towing Designed to connect a 5th wheel hitch setup with a gooseneck trailer coupler, this fifth wheel to gooseneck ball adapter uses a 2" kingpin on the bottom and a 2-5/16" gooseneck ball on top. A practical solution for truck owners who want more towing flexibility without changing the entire hitch system.
• PU Washer System PU Washer System for a More Controlled Connection Includes 1 sloped polyurethane washer and 3 flat polyurethane washers to create a cushioned support layer between the coupler and adapter. This system helps absorb multi-directional stress, reduce hard metal contact, control light movement, and support a quieter, more stable towing connection.
• Lube Plate Included Lube Plate Included to Reduce Contact Wear Comes with 1 lube plate to help reduce direct metal-to-metal friction between the adapter and the 5th wheel hitch plate. It supports smoother contact, helps reduce wear at the connection surface, and provides a cleaner setup than relying only on messy grease.
• Heavy-Duty Structure Built for Real Towing Demands The adapter body is built for demanding towing use with a wide support plate, 2" kingpin, and 2-5/16" gooseneck ball. The reinforced contact structure helps distribute towing pressure and provides a dependable connection for farm, ranch, flatbed, equipment, and utility trailer applications.
• Installation & Pre-Tow Check Simple Setup, Important Pre-Tow Check Place the lube plate, lock the 2" kingpin into your 5th wheel hitch, adjust the PU washer setup as needed, and verify that the coupler is fully seated before towing. Always confirm the hitch lock, ball connection, washer position, and contact fit before each trip.
• Support / Listing Protection TOWGUARD Support Before and After the Pull If you are unsure about your hitch setup, washer placement, trailer coupler fit, or towing connection, contact us before towing. Our support team can help you confirm the right setup, solve installation questions, and provide a faster solution if any product issue occurs.