+33

- SALE PRICE: $89,977
- MSRP: $137,352
- You Save: $47,375
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40ft long
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14,344 lbs
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Sleeps 7
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4 slides
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BunkhouseRear Living Area
378MBS Floorplan
Specifications
| 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 |
Description
"This is the manufacturer's minimum allowed advertised price, contact us today for your unbeatable personalized quote."
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.
Features
Standard Features (2025)
Exterior
- Exterior Spray Port (Door Side)
- Front Cap Windshield (380FL, 382WB)
- Winegard Antenna
- High-Gloss Gel Coat Exterior Sidewalls
- Color Matched Fender Skirt
- TPO Roof Covering w/ Limited Lifetime Warranty
- Slam-Latch Baggage Doors
- Magnetic Entry and Baggage Door Catches
- Entry Door w/Privacy Glass
- Frameless Tinted Windows
- Painted Gel Coat Fiberglass Front Cap
- Roof Ladder
- 17.5" Spare Tire (Undermount)
- Power Patio Awning with Integrated LED Lighting
- Sewer Hose Storage Area
- Easy Clean Solid Surface Steps
- Keyed Alike
- MORryde Strut Assist Entry Steps
- MORryde Safe-T-Rail Entry Handle
Construction
- Drop Frame Chassis
- Upgraded Axle Hangers
- 5-Side Aluminum Cage Construction
- Walk-On Roof
- Fully Enclosed Underbelly w/ Heated Tanks and Storage
Running Gear
- Heavy Duty 8,000 lb. Axles
- 17.5" H- Rated Aluminum Wheels
- MORryde® CRE3000 Suspension System
- Tow Assist ABS & Sway Mitigation System
- 1/2" Shackles
- Metal Wheel Wells
Frame & Chassis
- 101" Widebody Construction
- MORryde® Pin Box
Interior
- Double Tri-Fold Hide-A-Bed Sofas (376RD, 380FL, 382WB, 390RK, 417KB)
- Glass Cabinet Door Inserts (Select Areas)
- Under Step Shoe Storage (Most Models)
- Plywood Drawer Bottoms
- Premium Roller Shades
- Hardwood Window Treatments
- Congoleum Flooring w/3-Year Warranty
- Hallway Handrail
- Hardwood Cabinet Doors
- Signature Wall Mounted Dinette Table w/4 Padded Chairs
- Theatre Seating
- Tri-Fold Hide-A-Bed Sofa
- Smoke Detector, LP Alarm, Carbon Monoxide Alarm
- Hardwood Drawer Boxes w/Undermount Guides
- Electronics Drawer
- Ultrafabrics Ultraleather Furniture
- Pet Friendly Features: Pet Dishes, Screen Defender and Leash Link
Kitchen
- Oversized Kitchen Pantry w/Adjustable Shelves
- LED Rope Lighting in Pantry
- Real Tile Backsplash
- Hardwood Kitchen Light Soffit
- Dishwasher Prep (310GK, 370DV, 390RK, 391DL)
- Hutch with Flip-Top Hidden Storage (380FL, 382WB, 390RK)
- Washer/Dryer Prep
- Solid Surface Countertops
- Smart Sink w/ Colander, Cutting Board, Soap Dispenser, Cup Rinser, Waterfall and 3 Spray Modes
- Spice Rack
Electrical
- 55 Amp Converter
- Under Unit LED Light Kit
- Exterior Security Light
- 50 Amp Service w/ Detachable Power Cord
- 12-Volt Battery Disconnect
- Recessed LED Ceiling Lighting
- Interior LED Accent Lighting
HVAC
- Kitchen 12-Volt High Power MaxxAir Fan with Rain Sensor
- Stealth A/C System
- 35k BTU High Capacity Furnace
- Attic Vent
- High Capacity Heat Ducts
Plumbing
- On Demand Water Heater
- Whole House Water Filtration System
- All-In-One Enclosed and Heated Utility Center
- Brass Plumbing Fittings
Bedroom
- Residential Style Headboard
- Under Bed Storage Area
- Individually Switched Reading Lights Over Bed
- 60" x 80" Queen Bed
- Window Above Master Bed Headboard
- Dresser w/Slide-Top Hidden Storage
- Night Stands with USB Ports
- Bedside 110-Volt Outlets (2)
- Clothes Hamper
Bathroom
- One-Piece Fiberglass Shower with Glass Door
- Porcelain Toilet
- Undermount Lav Sink
- Hair Tool Accessory Drawer
Appliance
- Professional Grade Stainless Steel Cooktop w/ Built-in Oven
- Stainless Steel 12 Cu. Ft. 4-Door Refrigerator
- GE Stove and Microwave
Electronics
- Back-Up Camera Prep
- Tire Linc TPMS System
- Satellite/Cable Prep
- Exterior Cable/Satellite Plug-In
- LED Smart TV in Living Area
- Rockford Fosgate Stereo Ent. System w/ HDMI and App Controls
- Exterior Speakers
- OmniConnect On-Board WiFi Ready
Peace of Mind Package
- Exterior Cable/Satellite Plug-In
- Dresser w/ Flip-Top Hidden Storage
- MORryde® Pin Box
- MORryde® CRE3000 Suspension System
- Tow Assist ABS & Sway Mitigation System
- 17.5" Spare Tire (Undermount)
- Power Patio Awning with Integrated LED Lighting
- Sewer Hose Storage Area
- Kitchen 12-Volt High Power MaxxAir Fan with Rain Sensor
- Washer/Dryer Prep
- Whole House Water Filtration System
- Easy Clean Solid Surface Steps
Max Built Construction Package
- Satellite/Cable Prep
- 101" Widebody Construction
- Heavy Duty 8,000 lb. Axles
- 17.5" H- Rated Aluminum Wheels
- High-Gloss Gel Coat Exterior Sidewalls
- Color Matched Fender Skirt
- 5-Side Aluminum Cage Construction
- Walk-On Roof
- TPO Roof Covering w/Limited Lifetime Warranty
- Slam-Latch Baggage Doors
- Magnetic Entry and Baggage Door Catches
- Entry Door w/Privacy Glass
- Frameless Tinted Windows
- Painted Gel Coat Fiberglass Front Cap
- Exterior Security Light
- Roof Ladder
- 50 Amp Service w/Detachable Power Cord
- 12-Volt Battery Disconnect
Residential Living Package
- LED Smart TV in Living Area
- Rockford Fosgate Stereo Ent. System w/ HDMI and App Controls
- Exterior Speakers
- Night Stands with USB Ports
- Bedside 110-Volt Outlets (2)
- Keyed Alike
- MORryde Strut Assist Entry Steps
- Stealth A/C System
- Premium Roller Shades
- Hardwood Window Treatments
- Congoleum Flooring w/3-Year Warranty
- Hallway Handrail
- Recessed LED Ceiling Lighting
- Interior LED Accent Lighting
- Hardwood Cabinet Doors
- Signature Wall Mounted Dinette Table w/4 Padded Chairs
- Theatre Seating
- Tri-Fold Hide-A-Bed Sofa
- Smoke Detector, LP Alarm, Carbon Monoxide Alarm
- Solid Surface Countertops
- Smart sink w/removable cutting board, produce strainer and glass rinser
Weather-Tek Package
- 35k BTU High Capacity Furnace
- Fully Enclosed Underbelly w/ Heated Tanks and Storage
- Attic Vent
- High Capacity Heat Ducts
- All-In-One Enclosed and Heated Utility Center
See us for a complete list of features and available options!
All standard features and specifications are subject to change.
All warranty info is typically reserved for new units and is subject to specific terms and conditions. See us for more details.
Due to the current environment, our features and options are subject to change due to material availability.
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*All calculated monthly payments are an estimate for qualified buyers only and do not constitute a commitment that financing or a specific interest rate or term is available. Financing terms may not be available in all Campers Inn locations. Campers Inn RV Sales is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes sales tax, registration tags, and delivery fees. Manufacturer pictures, specifications, and features may be used in place of actual inventory in stock on our lot. Please contact us for availability as our inventory changes rapidly.
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.
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.



