Gooseneck to 5th Wheel Adapter 30K lbs - Fits 4" Round Tube, 18" Heavy Duty King Pin Coupler for Trailers & Trucks, Adjustable Height, Black Powder Coated

Gooseneck AdapterSpecifics18" Long ；30000 lbs；4" Round TubeProduct Description【Fitment】Fits Standard Gooseneck Trailer Coupler Tubes. For Trailers with 4 Inch Round Tube.【Feature】Gooseneck-to-5th-wheel adapter lets you tow your gooseneck trailer with a 5th-wheel hitch. Unique coupler fits the same as a gooseneck coupler with inner and outer tubes.Standard King-Pin fitted to 4" round or 4" to 4-1/2" square. 18" length extra heavy wall tube.【Quality Material】Black powder coating to avoid rust, one-piece processing, uniform force, strong enough. Have a good load-bearing capacity. Rated 30,000 lbs.【Function】King pin coupler allows you to pull your gooseneck trailer with a fifth-wheel hitch. The height easily adjusts to fit your application. Round inner and outer tubes replace the gooseneck coupler on your trailer.【Easy to Install】Simply slide the adjustable height gooseneck coupler down out of the outer clamping sleeve on the neck and slip the kingpin adapter up into the sleeve and pin it in place taking care to tighten the set screw(s) to prevent movement.Package Included1x Gooseneck adapter

• 【Heavy-Duty 30K lbs Capacity】 This gooseneck to 5th wheel adapter supports up to 30,000 lbs weight capacity with reinforced extra-thick wall tubing. Perfect for hauling horse trailers, construction equipment, or heavy cargo with safety.
• 【Precision Fit for 4" Round Tube】 Designed to seamlessly replace standard gooseneck couplers, compatible with 4-inch round trailer tubes. Inner/outer dual-tube structure ensures stable towing without wobbling.
• 【Adjustable Height & Easy Installation】 Features a sliding sleeve mechanism for quick height adjustment. Simply remove your gooseneck coupler and pin this kingpin adapter in place—no welding or drilling required.
• 【Rust-Resistant Black Powder Coating】 Durable powder-coated surface protects against corrosion and wear, ideal for long-term outdoor use in all weather conditions.
• 【Versatile Towing Solution】 Converts gooseneck trailers to work with fifth-wheel hitches on pickup trucks (Ford F-250/350, Chevy Silverado 2500HD, etc.) or RVs. Includes set screws for secure attachment.