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RV REFERENCE RECORD
2026 Forest River Sierra
M-3990FL
| Year | 2026 |
|---|---|
| Make | Forest River |
| Model | Sierra |
| Floor Plan | M-3990FL |
| Type | Fifth Wheel |
| Length | 43.5 ft |
| Width | 96 in |
| Height | 160 in |
| Dry Weight | 12439 lbs |
| Hitch Weight | 2825 lbs |
| Payload Capacity | 2936 lbs |
| Sleeps | 10 |
| Slides | 5 |
| Axles | 2 |
| Fresh Water | 50 gal |
| Gray Water | 80 gal |
| Black Water | 50 gal |
| Refrigerator Capacity | 16 cu ft |
| Awnings | 1 |
| Doors | 1 |
| Air Conditioners | 2 |