RV Details
- Year: 2021
- Model: SOLITUDE 378MBS-R
- Listing ID: 7001438
- Partner ID: 5038895503
- Posted On: Jan 6, 2026
- Updated On: May 8, 2026
Description
2021 Grand Design Solitude 378MBS-R Off-Grid & Full-Time Ready $55,900 (Priced to Sell!)
Well-equipped Solitude with solar, lithium, generator, washer/dryer, and major upgrades already installed.
Built for full-time living and off-grid capability, comfortable for everyday use, able to run like a small home without hookups, and set up for reliable connectivity wherever you land.
Truly turnkey, hitch up and go, whether you're planning weekend trips, full-time travel, or extended stays.
Includes a complete lithium/solar/generator system, washer & dryer, disc brakes, and remote-work connectivity already installed and ready to use.
Factory Options
Dual-pane windows (excellent climate & sound insulation)
Slide toppers
8K axles with disc brakes
$26,000+ Off-Grid Power System
Onan 5500 LP generator
1,280W Renogy solar
600Ah Battle Born lithium batteries
Dual Victron 3,000W inverters
Victron Cerbo GX MK2 with GX Touch 50 display
Capable of running ACs, appliances, and laundry without shore power.
Connectivity & Remote-Work Ready
Pepwave MAX Transit Cat-12 cellular modem (dual carrier capable)
Parsec Husky Pro 7-in-1 antenna
Reliable setup for full-timers and remote workers.
Interior Upgrades
Splendide stackable washer & dryer
Purple queen mattress with Hypervent airflow barrier
Custom desk/workstation conversion in master
Custom mid-bunk single bunks with storage below
Mattress Insider RV mattresses with Hypervent airflow barrier
Kitchen & Bath Enhancements
Flip-up buffet counter on island
Added kitchen storage solutions
Extra outlets and improved switch placement
Glass shower doors removed (lighter and more practical)
Exterior & Chassis
Gen-Y Executive torsion-flex hitch
Aluminum supports under black and gray tanks
Roof vent covers
Also Included with Purchase
B&W gooseneck hitch
Gen-Y manual latch coupler lock
Original MORryde pin box available
Clean title in hand.
Located near Cedar Hill, TN.
Also available separately: 2021 F-450 Super Duty Crew Cab $75,000.
Package deal available.
If you've been looking for a well-equipped, ready-to-travel Solitude without taking on a major upgrade project, this one is worth a closer look.