+7 
-
44ft long
-
18,786 lbs
-
Sleeps 4
-
6 slides
-
Front KitchenKitchen Island
421FK Floorplan
Specifications
| Sleeps | 4 | Slides | 6 |
| Length | 44 ft | Ext Width | 8 ft 6 in |
| Ext Height | 13 ft 4 in | Exterior Color | QUICK SILVER |
| 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 |
| Solar Wattage | 200 watts | VIN | 4X4FRS837V0005689 |
Description
New 2027 Forest River RiverStone 421FK
The 2027 RiverStone 421FK by Forest River is a luxury fifth wheel designed for travelers who want residential comfort, premium craftsmanship, and the space to truly feel at home wherever they travel. Built for extended stays and full-time RV living, this coach combines elegant design, upscale amenities, and one of the most desirable floorplans in the luxury RV market.
The standout front kitchen layout offers a true residential cooking experience with expansive countertops, premium appliances, abundant cabinetry, and exceptional storage throughout. Whether you're preparing everyday meals or entertaining guests, this kitchen provides the space and functionality serious travelers appreciate. The kitchen flows seamlessly into the spacious living area, where comfortable theater seating, opposing sofas, and a large entertainment center create a warm and inviting atmosphere. Large panoramic windows fill the coach with natural light and provide stunning views of your surroundings.
The bath-and-a-half floorplan adds convenience for both owners and guests, while the rear master suite creates a private retreat designed for comfort and relaxation. A king bed, extensive wardrobe storage, washer and dryer prep, and a spacious residential-style bathroom provide all the comforts of home for extended adventures. Premium finishes, elegant furnishings, and thoughtful details throughout the coach elevate the luxury experience at every turn.
Outside, you'll enjoy massive storage compartments, power awnings, and RiverStone's premium construction designed for long-term durability and comfort. The RiverStone 421FK is ideal for travelers seeking luxury, residential living, and exceptional quality in a flagship fifth wheel.
KEY FEATURES & HIGHLIGHTS
• Front Kitchen Layout with residential-style functionality
• Bath And A Half Layout for added convenience
• Rear Master Suite with king bed and extensive storage
• Theater Seating & Opposing Sofas for residential comfort
• Premium Appliances & Solid Surface Countertops
• Washer & Dryer Prep for extended stays
• Power Awnings for outdoor enjoyment
• Massive Exterior Storage for all your gear
WHY BUY FROM CAMPERS INN RV?
At Campers Inn RV, our RV Match Makers are here to help you find the perfect fit for your lifestyle, making the buying process simple and enjoyable. Every unit is thoroughly inspected by certified technicians to ensure it’s ready for the road. Plus, with flexible financing options and a full-service department, you'll have support long after your purchase.
SEE IT IN PERSON
Come check out the New 2027 Forest River RiverStone 421FK in person and see why it's one of the most sought-after luxury fifth wheels available today. Call Or Text 865-933-7213 today to schedule your private walkthrough.
MODEL YEAR 2026 STOCK INFO AND SPECS SHOWN. PLEASE ASK FOR EXACT DETAILS ON THIS RV
Features
Standard Features
Standard Interior Package
- 3.7 CF oven with 4 burner range
- Upgraded Calcutta Solid Surface Countertop in kitchen
- Large Stainless Steel Kitchen Sinks with Residential-Style Faucet
- 18 CU. FT. French Door Refrigerator with Ice Maker
- Vinyl Flooring
- LED Lighting Throughout
- 30” Stainless Steel Microwave with Convection
- Oval Porcelain Toilet with Foot Flush
- Cordless Vacuum
- 40,000 BTU Furnace
- 10” Thick Memory Foam Mattress 72”x80” Standard
- Vinyl Flooring in Slideouts
- Day/Night Roller Shades Throughout
- 5200 BTU Fireplace in Living Room
- Solid Surface Sink Covers
- Overhead Storage Cabinets in Main Level Living Room
- Sofa/Desk Slides
- Residential Soft Close Hinges on Cabinet Doors
- Soft Close Drawer Glides
- Hardwood Dovetail Glides
- Under-bed Storage Compartment
- Solid Surface Backsplash
Standard Exterior Package
- Batten Insulation in Side Walls, Slideouts, Ceiling, and Floors
- 3/8" Roof Decking
- Fiberglass Roof
- 17.5" H-Rated Cooper Tires with Aluminum Rims
- Hydraulic Slideouts on Main Level and Bed Slides
- Electric Awning with LED Lights
- Side Turning Lights
- LCI Road Armour Suspension System
- 3" Hung Glass Exterior Walls with High Gloss Gel Coat Exterior
- Tandem 8,000 lb. Axles / 7,000 lb. Tri-Axles
- 32" x 78" Entry Door with Friction Hinges
- Dual Pane Frameless Windows
- 12v Heated Full Docking Station
- Two 15,000 BTU High Performance Quiet Cool A/Cs with Heat Pumps
- 12V Powered 50 Amp Cord Reel
- Painted Full Front and Rear Fiberglass Caps (N/A 419RD, 42FSKG, 421FK, 425FO – front caps only)
- MORryde Entry Step at Main Door
- MORryde Safe-T-Rail
- Water Manifold System
- Composite Slideout Floors
- Two Dual 6V or 12V Slide-Out Battery Trays
- High Visibility Chrome LED Tail Lights
- 2" Hitch Receiver for Bike Rack (300 lb. rating) (N/A in Toy Hauler Models)
- Dual 40 lb. LP Tanks
- Electric Dump Valves
- Rivited Fenders
RiverStone Luxury Package (Mandatory)
- Automatic 6-Point Hydraulic Level-Up System
- Four Camera Observation System Prep
- TravlFi Journey XTR 4G/LTE Router & WiFi Extender
- Splendide “Astral” Stackable Washer and Dryer
- Stained or Painted Hardwood Cabinetry and Stiles Throughout
- 40" LED TV in Bedroom
- 12V Heated Holding Tanks
- Fisher & Paykel Dishwasher
- Ceiling Fan (N/A on 425FO)
- Truma Aqua Go Comfort On-Demand Hot Water Heater
- LP Generator Prep
- BMPro Energy Management System
- Tank Sensors Display (Grey, Black and Fresh) Integrated with BMPro Readout
- Tire Pressure Sensors
- Additional Campside Awning with Weathershield
- Two Folding Chairs (N/A 421FK, 42FSKG)
Garage Model Standards
- Triple 7,000 lb. Axles
- 66" x 80" Residential 10" Memory Foam Mattress
- MORryde Zero Gravity Ramp Door
- 110" Deep, 64" Wide, 82" Tall (Bed up position) 58" Tall (Bed down position) Cargo Area (42FSKG)
Ultimate Electronics Package (Mandatory)
- 65" Samsung LED Smart TV in Living Room (39RKFB, 421FK, 42FSKG)
- 50-55" Samsung LED Smart TV in Living Room (425FO, 44DBL, 442MC Models)
- Klipsch Premium Sound Bar
- 2,000W Inverter
- BMPro Touch Control System
- 200W Solar Panel with 50Amp MPPT Controller
- Pre-Wire Prep for Two Additional Solar Panels
Optional Legacy Package
- Full Body Paint
- Hydraulic Disc Brakes
- 3rd High Performance AC w/ Heat Pump
- 400W Additional Solar 100AH Lithium Battery
- LCI Waste Management System
Additional Options
- 3rd A/C (15,000BTU) with Heat Pump
- 5.5 Onan Marquis Gold LP Generator
- Cadet Wall Mounted Electric Heater in Bedroom
- Trail Air 21K Hitch (39RKFB)
- Furrion Four Camera System with 7" Monitor Screen—Rear, Side and Main Entry Door Views
- Slide Room Awning Toppers with Metal Weather Shields
- Two Additional 200W Solar Panels
- MORryde Independent Suspension System
- Hydraulic Disc Brakes
- 40" SMART Outside TV
- 50" SMART Outside TV (42FSKG only)
- Queen Bed Suite IPO King Bed Suite
- 2nd Sofa IPO Desk (39RKFB, 42FSKG, 421FK)
- Ceramic Coating
- Additional Lithium Batteries (up to 4 Total)
- Starlink Kit IPO TravlFI
See us for a complete list of features and available options!
All standard features and specifications are subject to change.
All warranty info is typically reserved for new units and is subject to specific terms and conditions. See us for more details.
Due to the current environment, our features and options are subject to change due to material availability.
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*All calculated monthly payments are an estimate for qualified buyers only and do not constitute a commitment that financing or a specific interest rate or term is available. Financing terms may not be available in all Campers Inn locations. Campers Inn RV Sales is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes sales tax, registration tags, and delivery fees. Manufacturer pictures, specifications, and features may be used in place of actual inventory in stock on our lot. Please contact us for availability as our inventory changes rapidly.
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.
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.