New 2025 Forest River RV RiverStone 421FK Fifth Wheel

Riverstone Luxury Package King of Luxury Fifth Wheels with Front kitchen - Call Today!
Sold Virtual Tour Video Tour
2025 421FK Features and Options

New 2025 Forest River RiverStone 421FK – King of Luxury Fifth Wheels with Spacious Elegance and Premium Comfort

 

The New 2025 Forest River RV RiverStone 421FK represents the pinnacle of luxury in fifth wheel design. Built for full-time RVers, extended road trips, and travelers who refuse to compromise on comfort or quality, the RiverStone 421FK delivers massive living space, residential-style amenities, and premium craftsmanship. Whether you’re exploring national parks, seasonally traveling, or living life on the road, this fifth wheel offers exceptional comfort, functionality, and sophistication.

Exquisite, Open Concept Living Space

Step inside and immediately notice the impressive open floorplan — a hallmark of the RiverStone series. The expansive rear living area is designed to maximize space and sightlines with panoramic windows, plush seating, and a premium entertainment center. This welcoming environment is perfect for evening gatherings, family movie nights, or simply relaxing after a day of adventure.

Chef-Inspired Kitchen for Everyday Meal Magic

The gourmet kitchen in the 421FK elevates campsite cooking to a new level. Featuring solid-surface countertops, high-end stainless appliances, a residential refrigerator, a gas cooktop with oven, and deep sink, this kitchen is ready for everything from casual breakfasts to full holiday feasts. With abundant cabinetry and a well-positioned island, you’ll enjoy exceptional prep space and storage wherever your travels take you.

Spacious Front Master Retreat

The private master bedroom offers a true residential feel with a king bed, generous wardrobe space, and direct access to the full bathroom. Soft, ambient lighting, plush flooring, and thoughtful design create a peaceful retreat that feels as comfortable as home. Large windows provide scenic views and natural light, bringing the outdoors in.

Luxury Full Bathroom with Residential Features

The full bathroom includes a large, glass-enclosed shower with premium fixtures, a modern vanity, and plenty of storage space. This spa-like environment makes getting ready each day a pleasure and adds convenience and comfort that rivals many homes.

Superior Construction for All-Season Comfort

The RiverStone 421FK is built with Forest River’s commitment to strength, durability, and innovation. With high-quality materials, fortified insulation, and smart engineering, this fifth wheel is ready for year-round travel and varying climates. Flexible storage options — both interior and exterior — make it easy to bring gear, essentials, and personal touches on every adventure.


Top Reasons to Buy the 2025 Forest River RV RiverStone 421FK

Expansive Rear Living Area
Large panoramic windows, comfortable seating, and a premium entertainment center make this the perfect space for living and entertaining.

Gourmet Kitchen with Residential Feel
Solid-surface counters, full-size appliances, and an island bring practicality and luxury to every meal.

Private King Master Suite
Ample space, generous storage, and a peaceful environment ensure restful nights on the road.

High-End Full Bathroom
Glass-enclosed shower, stylish vanity, and smart storage elevate everyday routines.

All-Season Comfort and Durability
Superior insulation and construction make this fifth wheel capable of handling varied weather and climates.

Massive Storage Solutions
Interior and exterior storage keep gear, memories, and essentials organized and accessible.

Perfect for Full-Time Living or Seasonal Travel
Ideal for travelers who want both residential comfort and premium fifth wheel quality.


Why Buy From Campers Inn RV

Decades of RV Expertise and Trust
Campers Inn RV has been guiding customers to the perfect RV match since 1966, with seasoned professionals who understand your needs.

Thorough Pre-Delivery Inspections
Every new RV undergoes meticulous inspection and preparation so you can travel with confidence from day one.

Knowledgeable and Supportive Sales Team
The team at Campers Inn RV listens to your goals, explains all features, and helps you find the perfect configuration for your lifestyle.

Transparent, Customer-First Buying Experience
Clear pricing, open communication, and a no-pressure environment make buying stress-free and enjoyable.

Nationwide Service and Support Network
With certified service centers and trained technicians around the country, you’re supported long after your purchase.

Comprehensive Walk-Through at Delivery
Before you hit the road, Campers Inn RV provides a complete orientation, so you understand every system and feature of your RiverStone.

Options:
  • Riverstone Luxury Package
  • Waste Master System
  • 4 Camera System
  • Awning toppers w/ Metal Shield
  • Washer/Dryer
  • Max Graphic Package
  • Ultimate Electronics Package
  • 100AH lithium Battery
  • 3rd A/C with heat pump
  • 400w solar panels
What Our Customers Are Saying

Great customer service and support!

I was having trouble with my BMPRO and we called Burton campers and shared what was going on then we were transferred to Easton. He understood our problem and was extremely helpful in helping me resolve our issues. Great customer service and support. We need more Eastons in the workplace we live in California and had to call Alabama to get the help we needed. Great job Easton
- Sandra
 
Campers Inn
Location: Knoxville TN
Stock# 21154535
To get help now on this RV, call and enter the RV ID if prompted.
RV ID: 3368314#
(enter this ID if prompted)
2025 421FK Specifications
Sleeps 4
Slides 5
Length 45 ft
Ext Width 8 ft 6 in
Ext Height 13 ft 4 in
Interior Color RIPPLEBROOK
Exterior Color RIPTIDE RED
Hitch Weight 3270 lbs
GVWR 24000 lbs
Dry Weight 18331 lbs
Cargo Capacity 5669 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
Cooktop Burners 3
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" 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 4X4FRS83XS0004662
For more information Contact Us

RiverStone 421FK Reviews

Be the first to tell other RVers what you think about this RV  Write a Review
Similar RVs and Floorplans

Loading

.

Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. Where an image has a stock image indicator, please confirm specific unit details with your dealer representative.