Wallace Forge Kingpin to 2-5/16″ Gooseneck Ball Adapter


  • Standard 2-5/16″ Ball on one side and standard 2″ King Pin on the other side
  • Fifth wheel must be in an upright locked position
  • 30,000 lbs GTW
  • Product is unpainted
  • 8″ diameter plate

2 in stock


This fifth-wheel to gooseneck adapter allows your gooseneck trailer to be towed by a fifth-wheel hitch. The adapter has a solid 2″ forged kingpin with a 1/2″ bolster. The hardened steel 2-5/16 inch ball is machined to the kingpin and is rated for 30,000 lbs. The product is unpainted so some surface rust may be present when received.

  • Per the manufacturer: If the trailer’s gooseneck is offset you may need to block your fifth wheel plate to keep it from tilting/articulating
  • Per the manufacturer: You may have to adjust the main post of your gooseneck trailer to allow the trailer to ride level