New 2025 Grand Design Solitude 378MBS Fifth Wheel
At the heart of this floorplan is the middle bunkhouse, a true multi-purpose room.
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NEW 2025 Grand Design Solitude Fifth Wheel 378MBS
Designed for families, remote workers, and extended stays, the 2025 Grand Design Solitude 378MBS blends residential luxury with flexible living space so you never have to compromise comfort for adventure. With a dedicated middle bunkhouse/office, dual power awnings, and a refined open-concept living area, this fifth wheel is built to adapt to the way you travel.
At the heart of this floorplan is the middle bunkhouse, a true multi-purpose room. It features a fold-down bunk above a tri-fold sofa, creating comfortable sleeping space while still functioning as a lounge or workspace. A built-in desk and closet make this room ideal for working remotely, homeschooling, or hosting guests without disrupting the rest of the coach.
Highlights and Key Features:
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Middle bunkhouse with fold-down bunk, tri-fold sofa, desk, and closet
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Spacious open living area with dual opposing slide-outs
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Theatre seating and tri-fold sofa positioned for the LED Smart TV
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Free-standing dinette for meals, work, or family game nights
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Chef-inspired kitchen with large island and prep sink
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Built-in oven, oversized pantry, and 20 cu. ft. refrigerator
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Front private bedroom with queen bed slide (king optional)
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Large wardrobe with washer/dryer prep
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Two power awnings for extended outdoor living space
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Exterior beverage cooler and outside griddle for easy entertaining
Built with Grand Design’s renowned quality, the Solitude 378MBS features 101" wide-body construction, heavy-duty 8,000 lb. axles, frameless tinted windows, and high-gloss gel coat sidewalls. Travel confidently in all seasons thanks to the Weather-Tek Package, which includes a 35,000 BTU high-capacity furnace, enclosed and heated utility center, and fully enclosed underbelly with heated tanks and storage.
Inside, residential details elevate the experience with hardwood cabinet doors, solid surface countertops, premium roller shades, and upscale finishes throughout. On the road, the MORryde CRE3000 suspension system, MORryde pin box, and self-adjusting brakes deliver a smooth, stable towing experience from driveway to destination.
Why Buy from Campers Inn RV:
Campers Inn RV is committed to helping you find the right fifth wheel for your lifestyle. With knowledgeable product specialists, competitive pricing, flexible financing options, and a nationwide service network, you can buy with confidence knowing support is always within reach.
Inventory/Stock Images may be shown. Colors and specifications may vary. Call our AMAZING TEAM for details.
A lot of fun and friendly people work at this dealership and they took the stress out of the purchasing process. Our sales person was Kasey and my wife and I both loved her. She answered all our questions and was very straightforward about everything. I was also impressed with the candor of the two technicians they provided during the delivery process. They explained the camper to us and gave us a - Daniel
You Save: $52,375
Sale Price: $84,977
Stock# 21162058
| Sleeps | 7 |
| Slides | 4 |
| Length | 40 ft 2 in |
| Ext Width | 8 ft 5 in |
| Ext Height | 13 ft 5 in |
| Int Height | 8 ft 1 in |
| Hitch Weight | 2686 lbs |
| GVWR | 18000 lbs |
| Dry Weight | 14344 lbs |
| Fresh Water Capacity | 81 gals |
| Grey Water Capacity | 106 gals |
| Black Water Capacity | 53 gals |
| Tire Size | ST215/75R 17.5 LRH |
| Furnace BTU | 35000 btu |
| Number Of Bunks | 1 |
| Available Beds | Queen |
| Refrigerator Type | 12V |
| Refrigerator Size | 20 cu ft |
| Cooktop Burners | 4 |
| Number of Awnings | 2 |
| Axle Weight | 8000 lbs |
| LP Tank Capacity | 30 lbs. |
| Water Heater Type | Tankless On Demand |
| AC BTU | 30000 btu |
| TV Info | LR LED Smart TV |
| Awning Info | 20' and 11' Power w/Integrated LED Lighting |
| Axle Count | 2 |
| Washer/Dryer Available | Yes |
| Number of LP Tanks | 2 |
| Shower Type | Shower w/Seat |
| Electrical Service | 50 amp |
| VIN | 573FS4226SAA19588 |
Solitude 378MBS Reviews
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Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. Where an image has a stock image indicator, please confirm specific unit details with your dealer representative.


