New 2026 Forest River RV RiverStone 421FK Fifth Wheel

Front Kitchen WITH an island!!
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Floorplan Title
2026 421FK Features and Options

Forest River RiverStone 421FK Fifth Wheel for Sale in Middlebury, IN

If you're searching for a luxury fifth wheel in Indiana with a residential front kitchen layout and high-end amenities, the Forest River RiverStone 421FK is a top-tier choice. Available now at Royal RV Center in Middlebury, IN, this model is built for full-time living, extended stays, and ultimate comfort.

Front Kitchen with Residential Design

The front kitchen layout offers a true home-like cooking experience:

  • Large kitchen island with prep space
  • Three-burner cooktop
  • Dishwasher for easy cleanup
  • High-top dinette with bar stools overlooking the living area
  • Plenty of cabinetry and storage

Spacious Living Area

Relax in the center living room featuring:

  • Theater seating across from the entertainment center
  • E-Z Glide sofa bed for additional sleeping
  • Fireplace and 65" Samsung Smart TV
  • Open layout perfect for entertaining

Private Rear Bedroom Retreat

Enjoy a comfortable and quiet space with:

  • 72" x 80" king bed slide
  • Large rear wardrobe
  • Dresser with 40" LED TV
  • Stackable washer and dryer

Spa-Like Bathroom

The full bathroom includes:

  • Dual vanity sinks
  • Spacious shower
  • Plenty of storage for linens and essentials

Work-From-Anywhere Ready

A dedicated desk slide provides space to work remotely while traveling.

Built for Luxury & Full-Time Living

  • Six-point hydraulic auto-leveling system
  • LCI Road Armour suspension
  • Dual-pane frameless windows
  • Full docking station

Smart Technology & Off-Grid Capability

  • BMPro touch control system
  • TravlFi 4G/LTE router with WiFi extender
  • 200W solar panel
  • Prep for four-camera observation system

High-End Residential Features

  • Fisher Paykel dishwasher
  • Premium appliances and finishes
  • Designed for long-term comfort and durability

Available at Royal RV Center

Visit Royal RV Center in Middlebury, Indiana, proudly serving Indiana, Michigan, Ohio, and beyond, to explore the Forest River RiverStone 421FK fifth wheel and experience luxury living wherever your travels take you.

 
 
What Our Customers Are Saying

Great experience!

I was working in Gillette for the day and had furnace issues , called and asked if they could help me out. They were very helpful and were able to fix it and get me on my way. This was all done in no time and without an appointment. Great experience - Von
Price: $219,529
You Save: $64,534
Sale Price: $154,995
Royal RV Center
Location: Middlebury, IN
Stock# R005387
Location: Middlebury, IN
Stock# R005387
Contact Sales Request Info
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2026 421FK Specifications
Sleeps 4
Slides 6
Length 44 ft
Ext Width 8 ft 6 in
Ext Height 13 ft 4 in
Hitch Weight 3635 lbs
GVWR 24000 lbs
Dry Weight 18786 lbs
Cargo Capacity 5214 lbs
Fresh Water Capacity 79 gals
Grey Water Capacity 120 gals
Black Water Capacity 40 gals
Tire Size 17.5"
Furnace BTU 40000 btu
Available Beds King
Refrigerator Type French Door with Ice Maker
Refrigerator Size 18 cu ft
Convection Cooking Yes
Cooktop Burners 4
Number of Awnings 2
Axle Weight 8000 lbs
LP Tank Capacity 40 lbs
Water Heater Type Truma Aqua Go Comfort On Demand
AC BTU 30000 btu
TV Info LR 65" Samsung LED Smart TV, BR 40" Smart LED TV
Awning Info 16' Electric with LED Lights
Axle Count 2
Washer/Dryer Available Yes
Number of LP Tanks 2
Shower Type Standard
Electrical Service 50 amp
VIN 4X4FRS836T0005387
Fifth Wheel Inspection Checklist - Click to Learn More
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