Heavy-Duty Gooseneck Hitch for Semi-Trailers from Hitches and Couplers
Created at : Apr 21, 2025To haul heavy loads with confidence, you need equipment that's as tough and reliable as your truck. That’s exactly what Hitches and Couplers delivers with our gooseneck hitch for semi-trucks and cab & chassis—a rugged, purpose-built solution for professional-grade towing.
Designed for Strength and Performance
Built to handle the demands of commercial towing, this gooseneck hitch mounts directly to the truck frame. The design allows semi-truck operators to connect to gooseneck trailers quickly and securely without compromising on strength or stability. Whether you're hauling equipment, livestock, or large trailers, this hitch delivers the robust performance and peace of mind you need on the road.
Easy Installation and Versatility
What sets this hitch apart is its simple, bolt-in design. There's no welding or cutting required. It attaches to your semi’s fifth wheel plate just like a standard kingpin, transforming your rig into a highly capable gooseneck towing machine. It’s ideal for fleet owners, farmers, construction crews, and anyone who needs to convert a semi-tractor for gooseneck trailer use.
Specifications
These gooseneck hitches are 30,000 GVW and 45,000 GVW for cab & chassis pickups, cab & chassis trucks and semi-tractors. Frame width for cab & chassis pickups 250,350,450,550, cab & chassis trucks and semi-tractors all are 34-inches wide. A few semi-tractors in the 1980's were made with 33-inch frames and required using ¼” spacers or washers on each side. (Cab & chassis are a frame of their own and are not to be confused with a standard pickup frame that uses a standard pickup bed. See below.)
Pickup cab & chassis, mount over the outside of the frame and set 2-1/2 inches above the frame, 10 inches wide on top and 4 inches down the outside of the truck frame. They mount with three ¾ inch grade 5 bolts on each side with the bolts and nuts included. The 2-5/16-inch standard gooseneck ball is released by turning a handle 90 degrees, and the ball can be turned over for storage or removed for a different size ball or accessory. The Hitches & Couples Inc. part numbers are 205ST30K-T and 205ST45K-T.
For semi tractors class 6, 7, 8 & 9 trucks, where the hitch mounts over the truck frame, you need 2-inches clearance below the top of the frame at the rear axle between the frame, in addition to 10-inches wide on top and 4 inches down the outside of the truck frame. They mount with three ¾ inch grade 5 bolts on each side with the bolts and nuts included. They can be mounted behind your 5th wheel hitch, with the ball turned over or removed to allow the use of the 5th wheel hitch. These part numbers are 205ST30K and 205ST45K.
Additional Gooseneck Ball Options
Other gooseneck ball options are available, such as a 3-inch gooseneck ball (part number FL1005-3), 2-5/16-inch heat-treated stainless-steel ball with a 45,000 GVW rating, and other special height balls or an inverted 5th wheel kingpin and can be found under Flip-Over Accessories. The gooseneck ball is round and rotates in its socket which keeps the socket clean and can save ball life if you have a coupler that is of poor quality or is rough which a lot of them are. The ball is locked in the one-piece machined steel socket with a stainless-steel spring and locking pin. Simply rotate the handle to retract the pin, pull the ball out and store it inverted out of the way in the socket or remove it for another accessory.
Standard Options
The Gooseneck hitch body frame is the same for all models, and fabricated from ½ inch high grade steel, not A36 structural steel. The hitch frame has two openings to each side behind the gooseneck ball to connect safety chain hooks to. All frames are rated to 45,000 GVW, it is the ball that makes them less the 45,000 GVW.
The 205ST30K-T unit comes with a standard gooseneck ball 30,000 GVW, which is suitable for any standard gooseneck trailer.
The 205ST45K comes with a 2-5/16-inch heat-treated stainless-steel gooseneck ball and a 45,000 GVW rating.
Trusted Quality from Hitches and Couplers
As a long-time supplier of high-performance towing solutions, Hitches and Couplers has built a reputation for reliability and customer support. All of our products are made in the USA and designed with both safety and durability in mind. Our gooseneck hitches are engineered to meet or exceed industry standards, making them a trusted choice for heavy-duty hauling.
Get Yours Today
If you need a dependable way to tow gooseneck trailers with your semi-truck or cab & chassis, Hitches and Couplers has the answer. Our gooseneck hitch for semi-trailers offers exceptional durability, fast installation, and the towing capacity to get the job done right. We offer Free Shipping to the Lower 48. We also ship to Canada via UPS. An order received by noon CST ships the same business day. Visit our website or call us today to order your semi tractor gooseneck hitch.