In-stock alternatives that can ship today
Pull your gooseneck trailer with a fifth-wheel hitch by installing this round gooseneck-to-king-pin adapter. Inner tube fits most standard, round gooseneck coupler outer tubes.
Features:
Specs:
California residents: click here
Average Customer Rating: 4.7 out of 5 stars (158 Customer Reviews)
Pull your gooseneck trailer with a fifth-wheel hitch by installing this round gooseneck-to-king-pin adapter. Inner tube fits most standard, round gooseneck coupler outer tubes.As always, excellent service and support. I called Donna at etrailer to verify dimensions of this replacement 5th wheel adapter pin. Her answers were 'on target' and I was able to comfortably place the order through her. What I wasn't expecting was receiving the component 21 hours after the order was placed! Admittedly, this was a example of timing hitting all the right marks but anything I have ever ordered (lots) from etrailer arrives within two to three days.....usually exceeding my expectations. etrailer will continue to be my 'go to' first stop for my trailering needs. Great website, great service, fair pricing, fast delivery......perfect! 633303
I own a small transportation company and needed a way to minimize hookup time for one my drivers that primarily pulls fifth wheels hookups. We bought a 30 ft gooseneck trailer and found we needed a faster solution. We reached out to etrailer and they had solution that worked perfectly. Also, we were able to get our hitch conversion within 3 days limiting our downtime. I will buy from these guys again!!!! Excellent service.... 231711
The holes through the round tube insert for pinned height adjustment are not at a right angle to the square plate. I am not sure if it's designed that way on purpose or not. I would have thought it would have went exactly cross ways and not at an angle? The pictures look like the holes are for the pins to go straight thru from the side. I will not be using this feature at this time but maybe in the future. It's welded great and not warped and appears square in good shape but does have some rust. Primer at min would be helpful. It arrived very quickly about 2 travel days plus the weekend, 1 day ahead of schedule. This should solve the problem of leaning/ rolling trailer on the goose neck ball for high leverage loads by converting to anti sway 5th wheel set up. 458153
This item is ONLY for Bull Dog tubes requiring a 15 degree offset. I did not know this until after putting it in my none Bull Dog tube (I have a Lippert chassis). Tested after installation and the offset was so pronounced that it caught on my receiver. Talked with manufacturer's technical expert, and he said that the industry standard is 15 degrees. Regardless, the adapter is expertly fabricated and of good strong steel. Just wish it worked for my trailer. etrailer.com was very good trying to resolve my concern to point Donna spent a lot of time researching a solution for me. Ultimately I shipped back the adapter because it was not doable for me. We both learned a lot today about trailers and the limitations on Bull Dog adapters. 461653
Michael - 12/20/2018I have ordered alot from etrailer and always been pleased , last week I ordered a 5th wheel conversion for my gooseneck trailer then went outside and literally cut my gooseneck hitch off , i then got a call from etrailer saying the part I ordered was backordered and was not available .while I was disappointed I was so glad called me immediately and was able to come up with a alternative . Great customer service ,I can not say enough great things about etrailer 492683
Great product. Very well built. I am a farmer and use it to hook up a goose neck trailer to our semi. We use the trailer to haul hay, machinery, or even cattle. What's great about this product is that you can move it from trailer to trailer. This adapter will fit in a gooseneck trailer with the pin running through the side or with the bolts on the front. Overall great product for the farm. 420980
My expectation when I unboxed the unit was that it would be a brand new unit. This unit looks like it had been made up and peicemealed from random gooseneck parts. I am reluctant to use this unit because I am questioning the workmanship of the welds. 708317
Victoria B - 10/15/2019Works great. Now I don’t have to use the tractor to pull the heavy B&W hitch with the pog system everytime I need to pull the gooseneck. I did have to drill the holes for the pin since the coupler was not a bulldog brand. Pulls better on the king pin than the gooseneck ball also. Great price. Will shop again soon. 646610
The adapter is really well built. The welds are great and the raw material was easy to paint. The problem I encountered was the fourth and lowest adjustment hole could not be reached due to the four pieces of triangular support stock hitting my Big Tex trailer neck tube before the hole would line up for the pin. So I had to take my cutoff wheel and trim 1/2” off those four pieces of triangular support metal so the adapter would go up further in the neck and the pin could be inserted. I hate working on new equipment but it’s easier than returning it and losing time. 898061
I just put it on yesterday and it was a very easy install (about 5 Minutes). I hooked my truck up with no problems. I wanted to use my gooseneck trailer without having to pull my heavy B&W companion fifth wheel out of my truck bed. Mission accomplished. 896237
great buy, everything lined up. would recommend 894007
This is the 2nd one I bought for a 40' gooseneck flatbed to road tractor. The first one was seen by an individual that liked it and needed it so I sold it to him and ordered another. They're well built and serves it's purpose. Friendly people n fast service at etrailer. Will use them again if needed. 873118
The bulldog gooseneck to 5th wheel adapter has saved me time. It make leaving the 5th wheel in my truck a reality. Now my travel trailer and equipment trailers are all 5th wheel connections. Back under to connect, simple. They tow smoothly with less jerking. It is bare metal, so paint to match. 870338
Fast and accurate ! The hitch products i ordered were all made in the USA. Prices were great too. Awesome !!!! 864754
Perfect fit, easy install 861312
Great product 856251
Works great. Don’t paint the shaft! With any paint on it, it is VERY tight and hard to remove. 849656
good price works as it should, satisfied 844405
Service was great. Product is well made and fit was perfect. I have used hitch to connect my goose neck trailer to my semi for heavier loads that make my pickup strain. Then in a few minutes I change bad to a 2 5/8” ball for the pickup. Anything else I need will be through e-trailer. 801445
excellent product performs as needed . like it so well we just left it on trailer to only use with tractor.Would like to even look into changing pickup over to fifth wheel so it would be easier to hook up trailers with loads.The only issue I had was a small bead that was on the inside of trailer tube that hindered insertion of hitch.Would definitly do it again. We put it on flat bed gooseneck trailer to use with semi so it would free up pickup 791951
Fast shipping, nice quality, well built product! Thanks!! 784147
I am very pleased with the promptness of this order. The hitch appears to be of excellent quality at a fair price. I will certainly be checking with etrailer for my future trailer needs. 782339
Very fast shipping and easy to install. Will do business with them again. 779648
great product works like it supposed too and no problems 777663
Info for this part was:
At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time.
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.