# Keystone Cougar 337FLS

337FLS is a fifth wheel floor plan by Cougar (Keystone).

## Specs (2017 model year)

| Spec | Value |
| --- | --- |
| Length | 38 ft 1 in |
| Sleeps | 6 |
| Slide-outs | 4 |

## Model years

2017. Year-specific specs: `https://rvenvy.com/fifth-wheel-trailers/keystone/cougar/337fls?year={year}`

## Overview

The front-living layout is the big draw here — putting the lounge up front means the rear bedroom feels like a genuine retreat rather than an afterthought, something owners consistently call out as a reason they chose this floor plan for full-time or extended use. The kitchen holds its own with solid surface countertops, a deep oversized stainless basin, and a 12 cu ft refrigerator, plus an oversized pots and pans drawer that shows Keystone was thinking about real cooking. Outside, the XL pass-through storage with entertainment hook-up and the fold-down bike rack add practical versatility that couples and active travelers appreciate. Cold-weather campers will also note the Polar Package Plus zero-degree rating, fully heated and enclosed underbelly, and 4-point auto electric leveling — all of which make off-season trips far more approachable.

## Inventory

5 units currently for sale priced $20,993 to $28,999: https://rvenvy.com/fifth-wheel-trailers/keystone/cougar/337fls/inventory

Floor plan diagram: https://images.rvenvy.com/7e137bbfef0b56493bdfd4ecd41159ecd78e32a4e24bbd6cbcbe0cd82fa494d6/1024.webp

Canonical page: https://rvenvy.com/fifth-wheel-trailers/keystone/cougar/337fls