Gen-Y Hitch 5th Wheel to Gooseneck Pin Box for 2021 Keystone Arcadia 3660RL
Updated 10/27/2025 | Published 03/22/2025
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Question:
We are interested in the GY98GR for our 2021 Keystone Arcadia 3660RL. We have a Lippert Roto-Flex king pin box currently. I have attached photos. Our GVWR on the trailer shows 4999 empty then right below that it shows 13500. Is this the correct Gen-Y for our trailer? Thank you. Lequita
asked by: Lequita W
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Expert Reply:
Hey Lequita! The pin box on your 2021 Keystone Arcadia 3660RL uses a Lippert Rhino bolt pattern. Since your GVWR is 13,500 lbs we will use the Gen-Y formula GVWR x 0.22 = TW giving us 2,970 lbs which means you need the 4.5k tongue weight model. The correct Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box for your setup is the # GY33GR. If you need anything else feel free to reach out in the comments below.
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Robin H.
10/27/2025
Hey Lequita, how did the Gen-Y 5th wheel to gooseneck pin box work out on your Keystone Arcadia? Your update could make it easier for others trying to match the right model for their trailer.