Photo of Rv
Photo of Rv
Photo of Rv
  • Price: $73,500
  • Year: 2017
  • Model: MOMENTUM M-CLASS 399TH
  • Property ID: 6984192
  • Partner ID: 5038127836
  • Posted On: Oct 21, 2025
  • Updated On: Oct 21, 2025

RV Description

Used 2017 Grand Design Fifth Wheel RV

Momentum M-Class 399th Upgraded Edition

Were selling our 2017 Grand Design Momentum 399th luxury toy hauler simply because we don't use it anymore. A 7 Furrion Vision S 4-Camera System w/ LED Marker Lights has been added to it along with its already existing garage + weather-Tek package, 3 A/C units, Onan 5.5KW gas generator for 144 hrs, Happi-Jac electric bunk system, Rear aluminum deck system, 3-season garage wall, Washer/dryer hookups in the garage, exterior entertainment system w/ speakers, Auxiliary fresh water tank, 12v tank heaters, load range G tire upgrade, under-unit blue LED lighting kit, upgraded queen mattress in master suite. Does also have upgraded features, couch has heater and message abilities.


We are the second owners, there is a tear in the vinyl floor in front of th eslide out that was out of adjustment from original owner. Slide has been repaired and the floor tear is covered by carpet.

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