Photo by Anshamblen15 via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Starcraft_RV_-_GSL_Fifth_Wheel.jpg) (CC BY-SA 4.0)
2024 Forest River Sierra 391FLRB
by Forest River
Full Specifications
General Info
| Manufacturer | Forest River |
| Country of Origin | USA |
| Year | 2024 |
| Category | Fifth Wheel |
| Subcategory | — |
Dimensions & Weight
| Length | 38 ft |
| Width | 8.5 ft |
| Height | 13.5 ft |
| Dry Weight | 9,300 lbs |
| GVWR | 11,500 lbs |
| Hitch Weight | 1,860 lbs |
| Cargo Capacity | 2,200 lbs |
Engine & Chassis
| Fuel Type | N/A |
| Engine | — |
| Chassis | — |
| Horsepower | — |
| Fuel Capacity | — |
Living & Off-Grid
| Sleeping Capacity | 6 |
| Slide-Outs | 1 |
| Awning Length | 14.5 ft |
| A/C | 28,000 BTU |
| Furnace | 16,000 BTU |
| Fridge | 10 cu ft residential |
| Fresh Water | 75 gal |
| Gray Water | 41 gal |
| Black Water | 49 gal |
| Solar | 300 W |
| Battery | 150 Ah |
| Inverter | 3,000 W |
About the 2024 Forest River Sierra 391FLRB
Forest River has engineered the 2024 2024 Forest River Sierra 391FLRB for serious campers who want full-time livability in a towable format. The fifth wheel design provides inherent advantages in ceiling height, stability, and interior volume.
Coming in at 38.0 feet end to end, a width of 8.5 feet and 13.5 feet in height, the 2024 Forest River Sierra 391FLRB tips the scales at 9,300 pounds dry weight, with a GVWR of 11,500 lbs, giving you roughly 2,200 lbs of payload room. With one slide-out, the interior opens up considerably at camp, creating a spacious feel.
With capacity for 6 people to sleep, this is a true family hauler. The 2024 Forest River Sierra 391FLRB arranges its sleeping areas across multiple zones, so parents can enjoy separation from the kids at bedtime while everyone shares the common living space during waking hours.
Boondocking enthusiasts will value the a 75-gallon fresh water tank, 41 gallons of gray water holding, a 49-gallon black water tank. Electrical independence comes via 300-watt solar charging capability, 150 amp-hours of battery storage, a 3000-watt inverter for household AC power. 28,000 BTU of air conditioning handles warm-weather comfort, while a 16,000 BTU furnace ensures warmth during cold nights. A 10 cu ft residential refrigerator keeps provisions fresh on the road and at camp. Outside, a 14.5-foot power awning provides welcome shade for outdoor dining and relaxation.
Towing the 9,300-pound 2024 Forest River Sierra 391FLRB demands adequate tow capacity from your truck. The hitch weight comes in at 1,860 lbs, an important factor for matching to your truck. Make sure your tow vehicle is rated for the 11,500-lb GVWR when fully loaded with gear and water.
Priced at $60,000, the 2024 Forest River Sierra 391FLRB sits in the competitive mid-range where buyers get meaningful features without a luxury price tag hanging over the purchase. Large families and groups will find the 2024 Forest River Sierra 391FLRB particularly appealing, with enough sleeping positions to handle a full crew without anyone being relegated to a tent or air mattress.
All things considered, the 2024 Forest River Sierra 391FLRB from Forest River packs a strong feature set into a well-designed package. It deserves careful consideration alongside any competitor in the Fifth Wheel space, and a thorough walk-through will likely confirm its appeal.
The 2024 Forest River Sierra 391FLRB proves that towable RVs can rival — and even exceed — many motorhomes in comfort, space, and amenities.
Weighing 9,300 lbs dry with a 11,500 lb GVWR and 1,860 lb hitch weight, the 2024 Forest River Sierra 391FLRB requires a properly equipped three-quarter or one-ton truck. Inside, 1 slide-out(s) create a living room that rivals many apartments, complete with theater seating and a fireplace.
The 2024 Forest River Sierra 391FLRB is built with residential-height ceilings in the main living area, washer/dryer prep, and a 50-amp electrical system. Starting at $60,000, it competes favorably with coaches costing twice as much.