This unit has a sale pending.
It's still listed because pending deals sometimes fall through. Ask the dealer to be next in line.
Front bedroom, rear living area, bunk beds, mid bunk
Get in touch and we'll be happy to answer any questions or set up an appointment to see it in person.
2025 Grand Design Solitude 378MBS
UsedStock #2657160p
Listing price
2025 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
18,000 lbs
Sleeps
7
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.
$38,995 – $85,399
This unit is ranked 17 of 17 by asking price in this group.
The listing price on this unit has changed 12 times.
See the complete price timeline and the rest of this unit's pricing insights.
Camping World
Woodland, WA
Shop the 2025 Grand Design Solitude 378MBS - Stock #2657160P. It is currently available at Camping World in Woodland, WA.
Other listings for this floor plan, ranked by condition, model year, distance, price, and listing quality.