Gen-Y Hitch Nomad 5th Wheel to Gooseneck Pin Box For 2020 Keystone RV Hideout M-301 DBS

Updated 03/31/2026 | Published 03/26/2026

Question:

I have a 2020 KEYSTONE RV HIDEOUT SERIES M-301 DBS it has a trailair 18k rota flex will this pin box work?

asked by: Josh H

Expert Reply:

Hey Josh, thanks for reaching out. The Gen-Y Hitch Nomad 5th Wheel to Gooseneck Pin Box # GY57ND should work for you, but I'll need to know exactly which pin box model/bolt pattern is currently on your camper. The Rota-Flex comes in a few different bolt patterns so we'll need to know that to be sure the Gen-Y matches.

The best way to determine that is by looking at the sticker on your current pin box. There should be a sticker on the side that says the model number, RPO number and serial number. Send me those, or feel free to email me a picture of the sticker and I am happy to look into it and make sure you get the right thing.

The Gen-Y replaces the Lippert 1621,1116 and 1716 pin boxes which are pretty common, but lets verify what you have and we can make absolutely sure you get the right thing.

What truck are you towing with? Any cool trips planned once you get the pin box replaced?

expert reply by: Jesse M