Highest Capacity Gooseneck to 5th Wheel Trailer Coupler Adapter

Updated 02/28/2025 | Published 04/28/2023

Products Featured in This Question

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

(858)

$236.59

Curt PowerRide 5th Wheel Trailer Hitch - Dual Jaw - 30,000 lbs

(173)

$1348.95

Question:

Looking for a Gooseneck to 5th Wheel Trailer Coupler Adapter - Square - rated at 55,000 lbs. Our hitch is a 36” pulling 5 car hauler 55,000 lb. I can send you some photo of what I have.

asked by: Ali

Expert Reply:

The highest rated Gooseneck to 5th Wheel Trailer Coupler Adapter we offer is 30,000 lbs, part # KPG5-Q30. It doesn't make much sense to go any higher as the highest capacity fifth wheel hitch we currently offer is also around 30,000 lbs, like the Curt PowerRide 5th Wheel Trailer Hitch part # C22ER.

expert reply by: Conner L

J.s.

2/28/2025

I’d like to know if the 5th-Wheel-Gooseneck-Adapter/etrailer/KPG5-Q30 exclusively fits the Curt Powerade 30k 5th wheel! My concern is whether the kingpin is large enough. I have tried to buy other 5th wheel king pin to ball adapters and the kingpin diameter is just too small for the Curt Powerade 30k and the kingpin would come right out of the jaws lock because the diameter was too small. I’m hoping this part will be the answer to fit the Curt 30 k powerride

Bryce D.

2/28/2025

@Js Hey JS, yes the Gooseneck to 5th Wheel Adapter # KP5G-Q30 will work with the Curt PowerRide 5th Wheel Trailer Hitch # C22ER. This adapter's king pin is the same diameter as a standard king pin so it should work just fine.