The 2021 Grand Design Solitude S-Class 3740BH-R is a spacious, luxury-oriented fifth wheel measuring 40′4″ long with a 101″ wide-body design. It carries a dry weight around 13,884?lb, with a GVWR of 16,800?lb, a hitch weight of 2,900?lb, and nearly 2,916?lb of cargo capacity. Built tough under the Max-Built Construction package, it features a fully laminated gelcoat exterior, heavy-duty 7,000-lb axles, MORryde CRE3000 suspension, 17.5″ H-rated tires with NitroFill, and a 6-point hydraulic leveling system—all designed for stable towing and durability. Amenities include two power awnings spanning nearly 25′ total, dual entry doors, frameless tinted windows, and an Onan 5.5?kW generator prep with solar prep and heat-pump A/C upgrades.
The interior layout is ideal for large families or groups, sleeping up to 10 across multiple configurations: a front private bedroom (queen or optional king), a large bunkhouse at the rear with four bunks, a theater-style seating area with heat/massage, a free-standing dinette, and a tri-fold sofa in the living area . Between the living room and bunk zone lies a midship kitchen with a large island, double stainless sinks, residential-sized refrigerator (up to 18?cu?ft), three-burner range with oven, convection microwave, dishwasher prep, pantry with hutch, solid-surface countertops, and full-size pantry storage. Dual-zone electronics include Rockford Fosgate audio, LED smart TVs in both living and bedroom, electric fireplace, interior/exterior speakers, and full wiring for washer/dryer and satellite/cable connectivity.
Comfort and utility are prioritized with the Weather-Tek package, offering 35,000?BTU furnace, heat-pump A/C, insulated underbelly, heated tanks, and a walk-on TPO roof with 12-year warranty. The Solitude S-Class adds residential touches like hardwood cabinet doors, solid surface sink covers, nightstands with USB ports, and solid surface bathroom countertops with glass-door shower. Outside, you’ll find a true outdoor kitchen with fridge, sink, griddle, beverage cooler, and integrated lighting—perfect for entertaining. Owner reviews praise the rich feature set and build quality, though some have reported concerns over plumbing fittings and post-delivery issues related to workmanship, advising diligent pre-delivery inspections .
Summary at a glance:
| Feature | Details |
|---|---|
| Length & Weight | 40′4″, ~13,884?lb dry, GVWR 16,800?lb |
| Construction | Laminated gelcoat walls, 6-point leveling, strong chassis & suspension |
| Sleeping | Up to 10: front BR, rear bunkhouse (4 bunks), living room furniture |
| Kitchen & Living | Island kitchen, residential fridge, theater seats, tri-fold sofa |
| Comfort & Utility | Weather-Tek insulation, heat-pump A/C, Onan generator prep, outdoor kitchen |
| Tech | Rockford Fosgate audio, TVs, USB/nightstand ports, washer dryer prep |
