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GN6 King Pin on 4 1/2`` Sq. Tube - 39 lbs.

Price: $272.00

Quick Facts:


  • For trailers with 4 1/2″ ID square tube
  • Standard S.A.E. king-pin with 10″ round bolster plate fitted to 18″ long square or round tube.
  • Durable Black powder coat finish.
  • Fits standard gooseneck trailer coupler tubes.
  • Rated at 30,000 lb
  • 1″ holes thru both sides


Pull your gooseneck trailer with a semi-tractor or pickup mounted fifth wheel.

Simply replace the coupler with a king pin. Easily switch back and forth.

2" SAE king pins are the industry standard and are suitable for use in all over-the-road applications.