# Forest River Sierra Destination 401FLX

401FLX is a destination floor plan by Sierra Destination (Forest River).

## Specs (2025 model year)

| Spec | Value |
| --- | --- |
| Length | 40 ft 4 in |
| Sleeps | 6 |
| Slide-outs | 3 |
| Dry weight | 10,830 lbs |
| GVWR | 13,841 lbs |

## Model years

2025, 2024, 2023, 2022, 2021. Year-specific specs: `https://rvenvy.com/destination-trailers/forest-river/sierra-destination/401flx?year={year}`

## Floor plan tags

front living, rear bedroom

## Inventory

No units currently for sale. Search similar inventory: https://rvenvy.com/inventory

Floor plan diagram: https://images.rvenvy.com/baced967c2180a140cb80a0f0141bd3cb71820b59e014813ba37a5fdbbe68f8a/1024.webp

Canonical page: https://rvenvy.com/destination-trailers/forest-river/sierra-destination/401flx