- GN5 Round Straight Coupler for Semi-TractorPart measures 4″ outside diameter. Make sure it will fit as many of the China made tubes are not all...
- GN6 Square Straight Coupler for Semi-TractorPart measures 4 1/2″ outside to outside. Make sure it will fit as many of the China made tubes are n...
- GN7 Square Straight Coupler for Semi-TractorPart measures 4″ outside to outside. Make sure it will fit as many of the China made tubes are not a...
- SB5 9" Offset - 4" Round tubePart measures 4" outside diameter. Make sure it will fit as many of the China made tubes are not all...
- SB6 9″ Offset – 4 1/2″ Square tubePart measures 4 1/2" outside to outside. Make sure it will fit as many of the China made tubes are n...
- SB7 9″ Offset – 4″ Square TubePart measures 4″ outside to outside. Make sure it will fit as many of the China made tubes are not a...
Kingpin Hitch for Gooseneck Couplers
Turn your semi-tractor or pickup-mounted fifth-wheel into the towing machine it’s meant to be with a new kingpin hitch for gooseneck couplers from the experts at PopUp Towing Products. Our team manufactures every product in Kansas, the heartland of America. Our couplers fit standard gooseneck trailer coupler tubes, making it easy to determine the right size for your vehicle. We work with distributors around the country to get our products into the hands of consumers. To learn more about any of our kingpin hitches for gooseneck couplers, give PopUp Towing Products a call today at (800) 837-2805.
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