A fifth wheel hitch uses a similar construction to a semi-truck coupling to haul heavy trailers, RVs and other large equipment. Unlike a gooseneck hitch that uses a ball hitch, a fifth wheel hitch uses a flat plate with rails that connect to the underside of the pickup truck's bed. The trailer attaches to the hitch using a pin that locks into place. A fifth wheel trailer helps keep the hefty trailer secure while accommodating proper turning.
Fifth wheel hitch rating