# Forest River XLR Boost 366BX

XLR Boost 366BX is a fifth wheel floor plan by Forest River.

## Specs (2026 model year)

| Spec | Value |
| --- | --- |
| Length | 43 ft 6 in |
| Sleeps | 7 |
| Slide-outs | 2 |
| Dry weight | 13,074 lbs |
| GVWR | 18,374 lbs |

## Model years

2026. Year-specific specs: `https://rvenvy.com/fifth-wheel-trailers/forest-river/xlr-boost/366bx?year={year}`

## Overview

The Forest River XLR Boost 366BX pairs a spacious toy-hauler garage with practical features for extended camping, including a 40-gallon fuel tank and pumping station, generator prep, and a manual Euro garage bed. Inside, the residential-style kitchen includes a 12V refrigerator, three-burner cooktop, convection microwave, stainless steel sink, and a fireplace. A solid-step entry, tankless water heater, dual 15,000 BTU ducted A/C units, 200-watt solar panel, and 50-amp service round out the setup.

## Floor plan tags

toy hauler

## Inventory

13 units currently for sale priced $73,500 to $80,119: https://rvenvy.com/fifth-wheel-trailers/forest-river/xlr-boost/366bx/inventory

Floor plan diagram: https://images.rvenvy.com/bdb7d333b190805297a1c5fb3e31bc76e6cabedb0cc3d0f219c50e036a391c35/1024.webp

Canonical page: https://rvenvy.com/fifth-wheel-trailers/forest-river/xlr-boost/366bx