King pin coupler allows you to pull your gooseneck trailer with a fifth-wheel hitch. The height easily adjusts to fit your application. Round inner tube is included.
Features:
Specs:
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today we're going to take a look at the round tube gooseneck to fifth wheel trailer coupler adapter with a 30,000 pound weight capacity. This gooseneck to fifth wheel adapter will let you tow your gooseneck trailer with a fifth wheel hitch. It has the round innertube here that'll fit most standard round gooseneck outer tubes and it has the king pin at the bottom here that'll slide into a fifth wheel hitch. It you notice, it is an adjustable height. You can see it's a four hole design to fit your application. It is a sturdy steel construction.
If you notice right down here it has the heavy gusseting between the tube and the plate. It is a raw finish. This is also SAE J2738 compliant. A few specs on this. The tube diameter, which will be measured outside to outside since this is the innertube. If we put a ruler on that, you can see it's right at four inches for the tube diameter.
Now it does have the range or vertical adjustment, I mentioned the four hole design. The range, we'll measure from the center of this bottom hole to the center of the top hole and it's going to be right at eight inches, so it's got an eight inch vertical adjustment range. The measurement between each hole, center to center is going to be right at 2 11/16. The pin hole diameter, this large hole here, is 7/8 of an inch. The plate is a square plate, so it's going to measure 10 inches by 10 inches.
The king pin at the very bottom that slides into your fifth wheel hitch is going to be an industry standard two inch diameter king pin and the weight capacity on this is 30,000 pounds. That should do it for the review on the round tube gooseneck to fifth wheel trailer coupler adapter with a 30,000 pound weight capacity.
Average Customer Rating: 4.8 out of 5 stars (229 Customer Reviews)
King pin coupler allows you to pull your gooseneck trailer with a fifth-wheel hitch. The height easily adjusts to fit your application. Round inner tube is included.I ordered this item and within 2 days it had arrived. Installing it didn’t take over 10 minutes! I use my truck to work during the week and pull my 5th wheel on the weekend! Only thing I’d recommend purchasing is a lube plate to put on the hitch, that way you don’t have to deal with a greasy mess! I’d recommend this hitch to anyone!
Jacob - 03/30/2021I ordered a 30k gooseneck to kingpin conversion for a 40 foot heavy hay trailer. I received my order early. Upon inspection, I was pleased with the construction and then mounted it. it attaches to my single axle road tractor easily. it also provides better stability than the other options available. I am a first time customer and will likely be a repeat customer.
The product was fine. But this is how it showed up from UPS.
Great product. Allowed me to use a friends gooseneck trailer with my fifth wheel hitch and haul 4 tons of wood pellets! Very easy to put on and take off.
thanks, we have been using this 5th wheel adapter on a daily bases. It has stabilized the trailer 100%. Very Satisfied with it. Thanks
No problem everything lines up perfectly very smooth transition very satisfied. Thanks again George
Well built for the price. Had to get one to take my class A cdl test, but now I can haul my 40' gooseneck trailer with any truck.
Prompt delivery. Have not towed with the adapter yet, but product appears to be very heavy duty with thick walled pipe and very sturdy welds. I am anxious to test it. This product allows me to use a fifth wheel hitch to haul my 34' camper trailer and quickly convert to haul my 35' gooseneck trailer with my tractor and implements.
RICHARD K - 04/30/2018Works as it should, Fits perfectly, Changes to gooseneck in minutes for different vehicle
Well built product, easy installation and price was good compared to some of the others. I'm very happy and satisfied with it.
Better than what I expected,heavy duty well constructed,reasonably priced ,fast delivery Now I can tow my trailer with 2 different vehicles one with 5th wheel and the other gooseneck 5 stars
Eddie - 12/16/2019I replaced the gooseneck hitches on two trailers with the fifth wheel adapter. It makes switching trailers quick and easy. The adapter is very heavy duty.
Love adapter.
This was a perfect fit for our trailer and was an easy install.
Jonathan - 06/12/2020Was what we needed to convert our gooseneck trailer so we could use it with our 5th wheel hitch
It is exactly what a I wanted. Works great and allows me to pull my horse trailer with other vehicles.
I was told about your website by an RV dealer, I was looking for a goose neck to fifth wheel adapter for a horse trailer I had just purchased. I found what I was looking for at etrailer and ordered it, it was delivered in a couple days and the piece looked great and worked wonderful I was very impressed with the short turnaround time and would highly recommend your business
Works great for adapting the goose neck trailer into being able to be used with the 5th wheel plate in the truck
This is a very high quality tow post. I had one trailer that had a gooseneck hitch and one with a 5th wheel hitch. This adapted my gooseneck to 5th wheel set up. I thought it was very reasonably priced and excellent quality.
Hitch sits to high at it's lowest setting both 5th wheel and Adapter set as low as possible .holes in Adapter not drilled in line with plate sits cockeyed on Trailer. Painted yellow for safety.
We put the product in use the day we received it. Absolutely no problems, whatsoever! Like everything about it-ordering, price, website, delivery, installation, quality of product, and performance. Wish everything I ordered online turned out like this! Thanks
Great item: saves so much time hooking/unhooking! No need to jack it up or perfectly line up ball. Works great and price is good. Definitely a life saver for me in my more "mature" age! I haven't found anything negative with this as of yet so very happy with my purchase.
Makes switch from gooseneck ball hitch trailers to the fifth wheel very easy and only moments to do. Transporting for a living every advantage time wise is a plus.
IVE NEVER USED IT, I ENDED UP NOT NEEDING IT, i'LL PROBABLY SELL IT
Heavier/stouter than I expected it to be. Fits well. 4 stars instead of 5 because it is raw steel, not painted, primed, or anything, and it was covered with a light oil, I presume for rust preventative, but that made it messy to handle, and paint will not stick to the oil as delivered. Very well built, and strong, though. It will just require some prep before I paint it, which I hadn't counted on.
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