Front bedroom, rear living area, bunk beds, mid bunk
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2021 Grand Design Solitude 378MBS
UsedStock #CBR5656
Listing price
2021 Solitude 378MBS
Other floor plans with a similar body style, feature mix, and price range, prioritizing other manufacturers and brands.
What makes the 378MBS interesting is its layout logic: the living room lives in the rear slide, giving it a true room-like feel, while the east/west bed up front stays well away from the noise. The mid-bunk section is legitimately versatile. Owners have used it as an office, guest space, or actual bunk room depending on the trip. Grand Design builds the Solitude line with thicker walls and more insulation than most competitors, and the 378MBS adds CRE 3000 suspension and auto-leveling to help manage what is a substantial rig to tow. A kitchen island, desk, fireplace, and washer/dryer prep mean this one is set up for extended stays, not just weekends.
Length
40 ft 2 in
Dry weight
14,344 lbs
GVWR
16,800 lbs
Sleeps
6
Many factors play into a unit's listing price and what you should pay. This guide provides a ballpark estimate, but it does not factor in your exact scenario or how different listings are equipped.
There may be room for price negotiation.
$38,995 – $85,399
This unit is ranked 10 of 17 by asking price in this group.
Optimum RV
Robstown, TX
Compared with 1,115 dealers nationwide
Grand Design Solitude fifth wheel 378MBS highlights:
Whether you like to camp in cold or warm climates, you will have everything you need to stay cozy including a fireplace in this Solitude. The main living and kitchen area is spacious with dual opposing slides and offers theatre seating and a tri-fold sofa to relax on while watching the LED Smart TV and visiting with the cook in the kitchen that offers a large island and a residential kitchen faucet with a pull-out sprayer, a residential oven, an oversized pantry to store lots of goodies, and a real tile backsplash for style. The middle bunkhouse might be the reason you decided to own this fifth wheel which includes a fold down bunk and tri-fold sofa, plus a desk and closet making this room multi-functional. You can then retreat to your own master bedroom with a queen bed or choose the king option, a pull-out ottoman giving you a place to sit while taking off your shoes, an LED TV as well as a space prepped for a washer/dryer if you decide to add those appliances, plus more! You can also enjoy the outside grill and beverage cooler while relaxing under the awnings.
With each Solitude fifth wheel by Grand Design, you will have an exclusive superchassis, a wide rail design on heavy duty l-beam main rails providing a more stable jack stance, and maximum insulation from the thermal roof design and the exclusive full laminated walls to the insulated gooseneck and baggage doors. More features offered to help with traveling include the MORryde rubber pin box, the Tire Linc TPMS system, and the 6-point hydraulic system. And the 40,000 BTU of heating power, the heated underbelly and heated storage bay, the Evenflow heating system, and the Stealth A/C system with racetrack ducting, allow you to camp all year long! You will also find maximum storage solutions, residential features and so much more!
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