# Keystone Alpine 3790FK

> Front raised kitchen with tons of counter space, kitchen sink overlooking a window and large rear bath with dual vanity

3790FK is a fifth wheel floor plan by Alpine (Keystone).

## Specs (2025 model year)

| Spec | Value |
| --- | --- |
| Length | 41 ft 5 in |
| Sleeps | 6 |
| Slide-outs | 4 |
| Dry weight | 14,445 lbs |

## Model years

2025, 2024, 2023, 2022, 2021, 2020. Year-specific specs: `https://rvenvy.com/fifth-wheel-trailers/keystone/alpine/3790fk?year={year}`

## Overview

The 3790FK is built around its kitchen — a raised, front-of-unit space with solid surface counters, a 30" convection microwave, residential fridge with ice maker, and a sink positioned right at that panoramic frameless window. It's the kind of setup that makes cooking feel less like a chore. The rear of the unit keeps things equally well-considered: a King bed, a full bath with dual vanity, and a fireplace anchor a living area that's genuinely separated from the kitchen bustle. Outside, there's a full outdoor kitchen, and inside the Girard tankless water heater and triple air conditioning setup (two 15k BTU units plus a third 13.5k BTU) mean you're not compromising on comfort. Worth noting: the bathroom is accessed through the bedroom, so keep that in mind when thinking through how you'll actually use the space day-to-day.

## We like

- Large front kitchen
- Rear bathroom with dual vanity
- Division of space

## Things to consider

- Bathroom only accessible through bedroom
- Can't access bathroom with slides in
- No dinette

## Floor plan tags

dual vanity, bar seating, rear living area, rear bath, front kitchen

## Inventory

15 units currently for sale priced $39,900 to $72,999: https://rvenvy.com/fifth-wheel-trailers/keystone/alpine/3790fk/inventory

Floor plan diagram: https://images.rvenvy.com/91116524b81239c6793873a6ca0d8a1c7c191bf9387e794972dd84b25bd1d3a1/1024.webp

Canonical page: https://rvenvy.com/fifth-wheel-trailers/keystone/alpine/3790fk