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What is the King Pin Diameter on the Bulldog Gooseneck to 5th Wheel Hitch Adapter

Question:

I am wanting to pull my gooseneck trailer with my semi tractor. Is the kingpin dimentions correct for a semi fifth wheel?

asked by: Jim S


Expert Reply:

The standard king pin dimension for a semi-trailer is 2 inches diameter, where the fifth-wheel jaw wraps around the king pin. I went out to the etrailer.com semi-trailer on our lot, see link, and produced a short video showing both of the king pins in close proximity to each other for you to see.

The king pin on the Bulldog Gooseneck-to-5th-Wheel Trailer Coupler Adapter, # BD0289580300, is an industry standard 2 inch king pin and will work in a semi-tractor fifth-wheel hitch, as long as the height adjustment is adequate for towing the trailer.

If your gooseneck trailer already has a 4 inch inner diameter tube welded on the tongue and a removable gooseneck hitch, you could use the Gooseneck to Fifth Wheel Trailer Adapter, # 2085205, on your trailer.

expert reply by: Bob G


Robert G


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Products Referenced in This Question

Gooseneck to Fifth Wheel Trailer Adapter


Gooseneck to Fifth Wheel Trailer Adapter


33 reviews

2085205

Retail:$193.92

Price:$174.95

Product Summary:

Adapts Trailer

Gooseneck Trailer to Fifth Wheel Hitch

No Offset

30000 lbs GTW

Product Specs:

Adjustable Height

Replaces Inner Tube

Gooseneck Coupler Adapters


more information        


Product Page this Question was Asked From

Bulldog Gooseneck-to-5th-Wheel Trailer Coupler Adapter - Round - 25,000 lbs


Bulldog Gooseneck-to-5th-Wheel Trailer Coupler Adapter - Round - 25,000 lbs

BD0289580300

Retail:$251.26

Price:$194.95

Product Summary:

Adapts Trailer

Gooseneck Trailer to Fifth Wheel Hitch

No Offset

25000 lbs GTW

Product Specs:

Adjustable Height

Replaces Inner and Outer Tubes

Gooseneck Coupler Adapters


more information        






More Answers about Gooseneck and Fifth Wheel Adapters


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