Introducing the 2026 Forest River Riverstone, a remarkable fifth wheel designed for those who seek adventure without sacrificing comfort. With a substantial length of 42.58 ft and a dry weight of 16,292 lbs, it offers an impressive living space that comfortably sleeps 4. The rear kitchen is equipped with a French door refrigerator with an ice maker, perfect for preparing meals on the go. Enjoy ample black water capacity of 80 gallons and fresh water capacity of 79 gallons, making it ideal for extended trips. This new model combines luxury and functionality, ensuring you create unforgettable memories. Schedule your tour today!
Premium Features & Highlights
42.58 ft Length for Spacious Living
16,292 lbs Dry Weight for Easy Towing
French Door Refrigerator with Ice Maker
80 Gallon Black Water Capacity
79 Gallon Fresh Water Capacity
Select a category to view specs
Overview
Vehicle Identification & Details
8 specifications available
Category
Fifth Wheel
Condition
new
Floorplan
39RKFB
Make
Forest River
Model
Riverstone
Stock Number
RS-005378
VIN
4X4FRSR28T0005378
Year
2026
Size & Weight
Dimensions, Weight, Construction & Exterior
11 specifications available
Dry Weight
16,732 lbs
GVWR
18,975 lbs
Length
42.08 ft
Width
8 ft
Awning Length Ft
20 ft
Awnings Count
2
Doors Count
1
Primary Color
White
Secondary Color
Frost, Mercury, Blue Ice, Riptide Red Paint Options
Slides
4
Hitch Weight
2,975 lbs
Sleeping & Layout
Beds, Layout, Living & Comfort
12 specifications available
Available Beds
King
Bunk Beds Count
0
Convertible Beds Count
0
Double Beds Count
0
Full Beds Count
0
King Beds Count
1
Primary Bedroom Location
Front
Queen Beds Count
0
Sleeps
4
Has Primary Bedroom Window Shades
Yes
Recliners Count
0
Sofas Count
0
Kitchen & Dining
Cooking, Dining & Appliances
5 specifications available
Microwave
Yes
Kitchen Location
Rear
Stovetop Burners
4
Refrigerator Size
18
Refrigerator Type
French Door with Ice Maker
Bathroom & Facilities
Comfort & Privacy
4 specifications available
Bathrooms Count
1
Has Bathroom Vent
Yes
Has Medicine Cabinet
Yes
Shower Type
Standard
Water Systems
Tanks & Plumbing
8 specifications available
Black Water Capacity
80 gal
Black Water Tanks Count
1
Fresh Water Capacity
79 gal
Fresh Water Tanks Count
1
Gray Water Capacity
80
Gray Water Tanks Count
1
Has Water Heater Bypass
Yes
Water Heater Type
Truma Aqua Go Comfort On Demand
Power & Electrical
Electrical, Entertainment & Safety
11 specifications available
Ac Prewiring
Yes
Cable Prewiring
Yes
Electrical Service
50 amp
Has Battery Converter
Yes
Heat Prewiring
Yes
Satellite Prewiring
Yes
Tv Antenna Prewiring
Yes
Washer Dryer Prewiring
Yes
Radios Count
0
Televisions Count
0
Tv Info
LR 65" Samsung LED Smart TV, BR 40" LED TV
Climate Control
Heating & Cooling
2 specifications available
Ac Btu
30,000 BTU
Heater Btu
40,000 BTU
Manufacturer Features & Equipment
Generator
Dual-Pane Windows
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 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, 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,
Triple 7,000 lb. Axles, 66" x 80" Residential-Style 10" Memory Foam Mattress (Super Queen), MORryde Zero Gravity Ramp Door,
Full Body Paint, Hydraulic Disc Brakes, 3rd High Performance AC w/ Heat Pump, 400W Additional Solar 100AH Lithium Battery, LCI Waste Management System,
Batten Insulation in Side Walls, Slideouts, Ceiling, and Floors, 3/8" Roof Decking, Fiberglass Roof, 17.5" H-Rated 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 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, Riveted Skirt Metal, 12V Powered 50-amp Cord Reel,
3.7 CU. FT. 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" x 80" Standard, Vinyl Flooring in Slideouts, Day/Night Roller Shades Throughout, 5,200 BTU Fireplace in Living Room, Solid Surface Sink Covers, Overhead Storage Cabinets in Main Level Living Room, Sofa/Desk Slides, Residential-Style Soft Close Hinges on Cabinet Doors, Soft Close Drawer Glides, Hardwood Dovetail Drawers, Under-Bed Storage Compartment, Solid Surface Backsplash,
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" SMART 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),
65" Samsung LED Smart TV in Living Room (39RKFB, 42FSKG, 421FK), Klipsch Premium Sound Bar, 2,000W Inverter, BMPro Touch Control System, 200W Solar Panel with 50Amp MPPT Controller, Pre-Wire Prep for 2 Additional Solar Panels,
Features and equipment are provided by the manufacturer for this model line and may include optional equipment or items that vary by floorplan and trim. Please confirm with Johnston RV Center which options are included on this unit.
* Vehicle specifications listed to the best of our knowledge. All specifications, features, and information are provided by the manufacturer. Johnston RV Center is not responsible for manufacturer defects, specification changes, or recalls. Buyers should verify all information directly with Johnston RV Center.
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Built to Last
Superior construction for years of adventures
Chassis & Towing
3,084 lbs Hitch Weight
Designed for stability and easy towing with most vehicles.
Ready for Your Next Adventure?
Experience the freedom of the open road with your next RV adventure
Payment Calculator
Estimate your monthly payments
from $954/mo
Estimated • 20% down
Schedule Tour
See this RV in person at our showroom
Showroom Hours
Mon-Fri: 8:30 AM - 6 PM, Sat: 8:30 AM - 5 PM, Sun: Closed
273 Schwaiger Rd Cullman, AL 35055
Trade-In Value
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Trade Evaluation
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Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. We are 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 units on our lot. Please contact us for availability as our inventory changes rapidly. All calculated payments are an estimate only and do not constitute a commitment that financing or a specific interest rate or term is available.
$132,774
est $999/mo
NEWFifth WheelCullman, ALStock #RS-005378
2026 Forest River Riverstone 39RKFB
Length
42.08ft Length42.08ft42.08ft
Sleeps
Sleeps 444
Dry Weight
16,732lbs Dry Weight16,732lbs16,732lbs
$132,774
AI Assistant
Ask me anything about this unit
Online
Quick questions about this 2026 Forest River Riverstone:
* AI-generated responses are for informational purposes only and may contain errors. Please verify all information with Johnston RV Center before making purchasing decisions.
NEWFifth WheelCullman, ALStock #RS-005378
2026 Forest River Riverstone 39RKFB
Length
42.08ft Length42.08ft42.08ft
Sleeps
Sleeps 444
Dry Weight
16,732lbs Dry Weight16,732lbs16,732lbs
$132,774
AI Assistant
Ask me anything about this unit
Online
Quick questions about this 2026 Forest River Riverstone:
* AI-generated responses are for informational purposes only and may contain errors. Please verify all information with Johnston RV Center before making purchasing decisions.
NEWFifth WheelCullman, ALStock #RS-005378
2026 Forest River Riverstone 39RKFB
Length
42.08ft Length42.08ft42.08ft
Sleeps
Sleeps 444
Dry Weight
16,732lbs Dry Weight16,732lbs16,732lbs
$132,774
AI Assistant
Ask me anything about this unit
Online
Quick questions about this 2026 Forest River Riverstone:
* AI-generated responses are for informational purposes only and may contain errors. Please verify all information with Johnston RV Center before making purchasing decisions.