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  1. Gooseneck and Fifth Wheel Adapters
  2. etrailer
  3. Gooseneck Trailer to Fifth Wheel Hitch
  4. Replaces Inner and Outer Tubes
  5. 30000 lbs GTW
  6. Gooseneck Coupler Adapters
Gooseneck to 5th Wheel Trailer Coupler Adapter - Square - 30,000 lbs

Gooseneck to 5th Wheel Trailer Coupler Adapter - Square - 30,000 lbs

Item # KPG5-Q30
Our Price: $235.93
Gooseneck and Fifth Wheel Adapters
This item qualifies for Free Shipping
Shipping Weight: 79 lbs
Quantity: 
In Stock
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King pin coupler allows you to pull your gooseneck trailer with a fifth-wheel hitch. The height easily adjusts to fit your application. Square inner and outer tubes replace the gooseneck coupler on your trailer. Load-bearing pin included. 1-800-496-5010 to order etrailer gooseneck and fifth wheel adapters part number KPG5-Q30 or order online at etrailer.com. Free expert support on all etrailer products. Great prices and Fastest Shipping for Gooseneck to 5th Wheel Trailer Coupler Adapter - Square - 30,000 lbs. Gooseneck and Fifth Wheel Adapters reviews from real customers.
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  • Reviews (350)
  • Q & A (0)
  • Videos (1)
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  • Why etrailer?

etrailer Gooseneck and Fifth Wheel Adapters - KPG5-Q30

  • Gooseneck Trailer to Fifth Wheel Hitch
  • Replaces Inner and Outer Tubes
  • 30000 lbs GTW
  • etrailer
  • Gooseneck Coupler Adapters
  • Adapts Trailer
  • Adjustable Height
  • No Offset
  • Square Tube

King pin coupler allows you to pull your gooseneck trailer with a fifth-wheel hitch. The height easily adjusts to fit your application. Square inner and outer tubes replace the gooseneck coupler on your trailer. Load-bearing pin included.


Features:

  • Gooseneck-to-5th-wheel adapter lets you tow your gooseneck trailer with a 5th-wheel hitch
    • Unique coupler fits the same as a gooseneck coupler with inner and outer tubes
  • Adjustable height to fit your application
  • Sturdy steel construction
  • Heavy-duty load-bearing pin included
  • SAE J2738 compliant


Specs:

  • Range of vertical adjustment: 8"
    • 2-11/16" From center of hole to center of hole
  • Inner tube width: 4"
  • Outer tube width: 4-1/2"
  • Length: 20-1/8"
  • Pin hole diameter: 7/8"
  • Plate dimensions: 9-7/8" long x 9-7/8" wide
  • Weight capacity: 30,000 lbs
  • 1-Year warranty


Dimension of coupler plate


KP5G-Q30 Gooseneck to 5th Wheel Trailer Coupler Adapter - Square - 30,000 lbs





Video of Gooseneck to 5th Wheel Trailer Coupler Adapter - Square - 30,000 lbs

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of etrailer Gooseneck and Fifth Wheel Adapters - Fifth Wheel Adapter for Gooseneck - KPG5-Q30

Michael: Hi there. I'm Michael with etrailer.com. Today, we're going to take a quick look at this Gooseneck to Fifth Wheel Trailer Coupler Adapter. This is going to allow you to convert your gooseneck trailer to a fifth wheel kingpin adapter so that you can pull it with your fifth wheel hitch.This is a inner tube and outer tube assembly so it's probably not going to be necessary for everybody. We do sell the inner tubes separately. If you already have a outer tube assembly that's going to fit, you probably don't need this whole assembly.

This is mostly for people whose outer tube has already been damaged. They're wanting to switch it out. Or if the inner tube that we have on our site are not going to fit for you, this is a weld-on application so you will need to weld it in place. It's going to be very permanent for you. It's not something that you can switch out, off and on, depending on which hitch you're connecting to.

A big step, but this is going to be a really nice option for you if you are wanting to convert your gooseneck trailer to a fifth wheel permanently.This is a square tube. You can see our inner tube dimensions here. We're at right about. Turn this for you. Right at four inches for our inner tube and our outer tube, right about four and a half inches.

Our outer tube length is the standard 20 inches and we are going to have the industry standard kingpin on the bottom there, so it should work with all fifth wheel trailer hitches. This is a really nice sturdy steel construction so it's going to hold up well. It's got a weight capacity of 30,000 pounds and it is a raw finish so it should be very easy to get welded in place for you. You don't have to worry about grinding off paint or anything like that.And it is adjustable, the height here. You can see we've got a pin.

This will allow us to adjust the height. We've got four different height holes here, so we can adjust up to eight inches. And each hole is right about two and three-quarters of an inch separated from center to center, so that'll give you nice little increments that you can adjust to make sure that your trailer height is going to line up with your hitch height. Very easy to change, just pull out that pin, slide it in place. And then you got the clip here that goes on the other side to make sure that that pin doesn't wiggle free.We also have two set bolts here that will tighten down once we have the height where we need it so that will always be there. You won't get that rattling around. It'll be nice and tight for you. This does meet the SAE J2738 standards. You can trust it's going to hold up well, do a good job for you. You can see we've got the reinforced gussets here to make sure that we're going to have a nice, strong connection to our hitch so that we can pull that trailer along with us.The pin and the pin holes are seven-eighths of an inch, so should be very easy to get everything set up the way you need it if you are wanting to convert that gooseneck trailer to be pulled with a fifth wheel hitch.We do have other options here at etrailer.com. If you need a round tube or something like that, we do have lots of options available for you so I'd encourage you to check those out if this is not going to meet your needs.That's going to complete our look for today. Again, I'm Michael with etrailer.com. Thanks for watching.


Customer Reviews

Gooseneck to 5th Wheel Trailer Coupler Adapter - Square - 30,000 lbs - KPG5-Q30

Average Customer Rating:  4.8 out of 5 stars   (350 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. Square inner and outer tubes replace the gooseneck coupler on your trailer. Load-bearing pin included.

by:

Great quality welds worth the money




by:

Works good fit the trailer I bought to replace the 2-5/16 hitch that was on it. I only use king pins on my farm.




by:

Very rugged construction, gave me several options to adapt to my trailer. I had to modify it to fit my particular application but I have been using this trailer for a year and have had zero problems with the assembly. Approximately 30K miles on a trailer loaded to 26K lbs full time.




by:

It's beefy, which is what I wanted.

Though
I have to complain about the packaging.
It arrived in an enormous box, 5 times the size of the Hitch.
While there little chance of damaging this chunk of iron in shipping, one would want to believe the box would be commensurate with the actual size of the product. Too much waste in packaging/shipping, driving the price up.




by:




by:

Great, strong, endurance product! Perfect everything!




by:

Easy to use stout will use this on all my trailers Chris at e trailer was very helpful and professional




by:

Exactly what I needed. Great price and fast shipping.




by:

Excellent service




by:

I rarely give an excellent review as I always feel there is room for improvement, but this service was excellent. I ordered this coupler on Monday and it arrived via UPS on Thursday. It is the correct part and appears to be excellent quality. I won't hesitate to use this company again and to recommend it to others.




by:

Good products, great customer service




by:

Works Great, Lot better then the one I had order from another online retailer and a lot cheaper. Thanks.




by:

Its looks well built,its look tough




by:

Nice part and service




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by:

Review from a similar e GN to 5W Adapter in Gooseneck and Fifth Wheel Adapters


I have 3 of them. They are a good product and they are built very well. I recommend them to anyone who wants to convert to a 5th wheel! etrailer is a Great Company to deal with! Take Care!’




by:

Review from a similar e GN to 5W Adapter in Gooseneck and Fifth Wheel Adapters


Amazing build and great design. This think is thick!

Very excited to see how much better the 34 foot cargo trailer will be with this conversion.




by:

Review from a similar e GN to 5W Adapter in Gooseneck and Fifth Wheel Adapters


The picture shows the plate is not perpendicular to the holes, I thought this could have been the perspective, nope the plate of the unit I received is not perpendicular. Not a big deal, the bigger problem was I couldn't use it. I have a 2000 F250 and a BigTex 14' dump trailer, the combination of the truck, trailer and 5th wheel hitch didn't work, the angle put too much weight on the rear tires. I couldn't get the hitch low enough. I had painted the adapter so returning it wasn't an option. Other than the orientation of the plate the adapter is well made. I won't hesitate to use it in the future if my vehicles change to where it will work.




by:

Review from a similar e GN to 5W Adapter in Gooseneck and Fifth Wheel Adapters


Nice heavy duty goose neck 5th wheel adapter fit good .
Allowed me to take on other hAuling jobs


Comments
I dont get a chance to use it much but has preformed very well Id buy again
Robert - 08/17/2022


by:

Review from a similar e GN to 5W Adapter in Gooseneck and Fifth Wheel Adapters


Just what I needed to convert my flat bed trailer to my 5th wheel hitch




by:

Review from a similar e GN to 5W Adapter in Gooseneck and Fifth Wheel Adapters


Makes for a more stable hitch with the Ram Puck System, don't hear of feel the gooseneck down pipe flexing, makes hooking up easier in that I don't have to get up into the bed to close and lock the gooseneck lock. Yeah, glad I went this way. Easy install.




by:

Review from a similar e GN to 5W Adapter in Gooseneck and Fifth Wheel Adapters


Super Deal and CUSTOMER SERVICE.Ya'll got my bussiness !.
The RAMPS are off tha CHAIN " Just what tha DR. ordered " No more " HEMMORIDS ".




by:

Review from a similar e GN to 5W Adapter in Gooseneck and Fifth Wheel Adapters


The hitch looks great, just what we needed, and as what has become typical with your company, it arrived sooner than expected!! First Class Service!


Comments
Hitch has worked out great as expected, no issues.
John H - 08/28/2022


by:

Review from a similar e GN to 5W Adapter in Gooseneck and Fifth Wheel Adapters


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.



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Info for this part was:

Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Jeff D
Installed by:
Jeff D
Employee Michael B
Installed by:
Michael B
Employee Wilson B
Updated by:
Wilson B
Employee Mike S
Updated by:
Mike S
Employee Amanda M
Written by:
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