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Experience true residential luxury on the road with this Preowned 2021 Grand Design Solitude 378MBS—a fifth wheel designed for extended stays, full-time living, or unforgettable family adventures. With its spacious mid-bunk layout, premium amenities, and high-end construction, this RV delivers the perfect blend of comfort, functionality, and style.
Stretching just over 40 feet in length with four expansive slide-outs, the Solitude 378MBS creates an open, residential feel that’s hard to match. Inside, you’ll find a beautifully appointed rear living area featuring plush seating, theater recliners, a large entertainment center, and a cozy fireplace—perfect for relaxing after a day of exploring. Large panoramic windows flood the space with natural light, making every destination feel like home.
One of the standout features of this model is the versatile mid-bunk room. Whether you need a private guest bedroom, home office, or kids’ hangout, this flexible space includes a sofa sleeper, bunk, storage, and workspace—making it ideal for modern travelers who want options.
The gourmet kitchen is designed to impress, offering solid surface countertops, a residential-size refrigerator, large pantry, hutch, and ample cabinet storage. Whether you’re cooking for two or entertaining a group, you’ll appreciate the thoughtful layout and abundant prep space.
Up front, the private master suite delivers a true retreat with a comfortable bed, large wardrobe, washer/dryer prep, and plenty of storage. The spacious bathroom features a large shower, porcelain toilet, and quality finishes that elevate your daily routine.
Built with Grand Design’s commitment to quality, this Solitude includes features like aluminum frame construction, fiberglass exterior, high-capacity holding tanks, and climate protection for extended-season camping. With a 93-gallon fresh water tank, 100-gallon gray tank, and sleeping space for up to 7, this unit is ready for long trips or full-time living.
Why buy the 2021 Grand Design Solitude 378MBS?
This is one of the most sought-after floorplans in the luxury fifth wheel market thanks to its mid-bunk versatility and residential feel. It’s perfect for families, remote workers, or anyone wanting a dedicated bonus room without sacrificing living space. Buying preowned means you get top-tier luxury and features at a significantly better value than new, making it a smart investment for serious travelers.
Why buy from Lazydays Powered by Campers Inn RV?
Lazydays Powered by Campers Inn RV offers a trusted, customer-first experience backed by one of the most recognized names in the RV industry. With a massive inventory, competitive pricing, and experienced RV professionals, they make it easy to find the perfect unit for your lifestyle. Their commitment to quality inspections, flexible financing options, and ongoing service support ensures confidence long after your purchase. From your first walk-through to every mile ahead, you’re supported by a team that truly understands the RV lifestyle.
If you’re ready to elevate your travel experience with residential comfort, versatile living space, and premium design, this 2021 Grand Design Solitude 378MBS is the perfect choice. Your next chapter of adventure starts here.
†Lazydays strives to ensure the accuracy of the information provided on this website. However, actual products, programs and services may differ materially from those on this site. Lazydays is not responsible for errors made in stated pricing or specifications. Specifications and availability subject to change without notice. Price, length, weight, or any other specifications cannot be relied upon. Buyers should verify and confirm all claims made on the website. Sale price includes all manufacturer discounts and rebates. All prices listed on this site exclude tax, tags and title fees. Applicable government fees, state taxes, dealer fees and emissions testing charges will be added to comply with state vehicle codes. Freight and prep costs are additional and vary by state. Contact Lazydays for complete details.
*90 Days – Payments can be deferred for 90 days with approved credit. Interest accrues from contract date. Financing terms subject to lender approval. Not valid with other offers. Actual products, programs and services may differ materially from those on this site. Lazydays is not responsible for errors made in stated pricing. Specifications and availability subject to change without notice. Document fees vary by location. See dealership for complete details.
**Lazydays believes the specifications on this site supplied by the manufacturer to be correct at the time posted. However, specifications, standard equipment, model availability, options, fabrics, and colors are subject to change without notice. Some equipment may be unavailable when a vehicle is built. Some vehicles are pictured with options, which may be available at extra cost or may not be available on some models. You should verify the equipment that is on all vehicles. If a new vehicle shown on this website is subject to an open safety recall, Lazydays cannot deliver the vehicle to you until the recall repair is completed. This is a requirement of federal law.
***Margaritaville offer valid for a limited time only at Lazydays RV of Tampa. Customers who purchase a new RV or complete a qualified service appointment (appointment must be booked and customer must show for the appointment) are eligible to receive a complimentary 3-day, 2-night stay at Camp Margaritaville RV Resort of Auburndale. Offer valid while supplies last. Promotion is non-transferable, has no cash value, and cannot be combined with other offers or promotions. Limit one promotional stay per customer, per transaction. Resort stay subject to availability and blackout dates may apply. Resort reservation must be made within 30 days of RV purchase or completed service appointment. Valid for Florida residents and legal U.S. residents only, 18 years or older. Additional terms and conditions may apply. Lazydays RV of Tampa reserves the right to modify or cancel this promotion at any time without notice. Void where prohibited by law.
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