If you’re looking for a fifth-wheel that blends residential-grade comfort with rugged build quality and room for friends, family, or full-time travel — this 3790FK shines. With a wide-body design, four slide-outs, and thoughtful floorplan, it’s a top choice for anyone who wants “home” on the road.

Sleeps & Layout

Sleeps up to 6 comfortably.

King bed master suite in rear slide — roomy and private.

Spacious living area with tri-fold sofa sleeper(s) and theater-style seating for guests or overnight stays.

Front kitchen layout — generous counter space, residential-size 18 cu. ft. refrigerator, convection/microwave, and full range/oven make meal prep comfortable even on the road.

Large living space with 4 slide-outs — wide-body (100") construction, high ceilings, and panoramic windows give a bright, airy “house” feel.

Entertainment setup: fireplace + entertainment center + comfy seating make this feel like a real home living room.

Utilities, Tanks & Comfort

Fresh water capacity: 54 gallons

Grey / black water capacity: 88 gal grey / 44 gal black

Heating & Cooling: 35,000 BTU furnace + quality air-conditioning for year-round comfort.

Durable build: Laminated sidewalls, “wide-body” shell, solid frame — built to handle travel, weather, and heavy use.

Full-time-ready amenities while still practical for seasonal or occasional use.

Spacious, comfortable, and versatile — great for couples, small families, or guests.

Well-designed floorplan balancing living space, storage, and private sleeping quarters.

Proven build quality and systems from a top-tier manufacturer.

Don’t miss your chance to own a fifth wheel that feels like home — whether you’re setting out for weekends, road-school, snowbirding, or full-time life on the road, this 2022 Keystone Alpine 3790FK gives you everything you need.