Photo of Rv
Photo of Rv
Photo of Rv

RV Details

  • Year: 2021
  • Model: SOLITUDE 378MBS
  • Listing ID: 6975439
  • Partner ID: 5037776838
  • Posted On: Sep 16, 2025
  • Updated On: Feb 10, 2026

Description

2021 Grand Design Solitude 378MBS $52,500 OBO

Bend, Oregon | Clean Title in Hand | Delivery Negotiable | Pet-Free & Smoke-Free

Hi, we are selling our 2021 Grand Design Solitude 378MBS, a fifth wheel that has been our family's amazing home away from home. Our RV has been a very reliable and comfortable RV for our family outdoor adventures. The Solitude 378MBS is one of Grand Designs most sought-after floorplans for good reason. With four slide-outs, a mid-bunk room, residential finishes, and premium upgrades, its perfect for summer time travels or full-time living. We've maintained it meticulously and just had it professionally inspected by a certified Grand Design service center, earning a clean bill of health.

Highlights & Key Features

  • Spacious open living area with dual opposing slides provides plenty of space for family's to hang out

  • Luxury seating: Heated and massaging recliners with USB ports, plus a four-seat sofa that converts into a queen+ sleeper

  • Hidden 55" smart TV on Televator: Pops up for movie night, disappears for more space

  • Mid-bunk room: Sliding barn doors, desk, upper bunk, and flexible lower space great for a kids room or home office

  • An RV kitchen that feels like home:

    • Large island with solid-surface countertops

    • A long coffee bar counter space (we used for our Berkey and large countertop appliances)

    • Residential 4-burner oven & microwave

    • Large propane/electric fridge

    • Upgraded with a dishwasher

    • Spacious pantry and plenty of cabinet space

  • Dining area: Seats 4 comfortably.

  • Full-size bath: Oversized residential shower with massaging spray head and porcelain toilet.

  • King master suite: Upgraded Brooklyn Bedding mattress, large closet, under-bed storage, dresser/desk combo (added for another work space to use), and a stackable washer & dryer.

Pet-free and non-smoking since day one

Exterior Features

  • Dual electric awnings with LED lighting

  • Outdoor fridge and grill top

  • Outdoor speakers

  • Massive pass-through storage compartment plus more storage in front of the RV

  • Electric power cord reel

Premium Upgrades & Extras

  • Cummins Onan 5500 LP Generator (factory installed)

  • Double-pane windows for better insulation and soundproofing

  • Auto-leveling

  • Washer and Dryer

  • Slide toppers

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