GN6 Square Straight Coupler for Semi-Tractor
For trailers with 4 1/2″ ID square tube
Part measures 4 1/2″ outside to outside. Make sure it will fit as many of the China made tubes are not all sized consistently and many are under sized. PopUp will assume no responsibility for returns when incorrect measurements are taken. Please see return policy.
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.
- 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 1/8" holes thru both sides
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