2026 Forest River RiverStone 425FO

Vehicle Photo
  • MSRP: $224,469
  • Dealer Discount: $55,021
  • Finance Incentive: $5,000
  • Sale Price: $164,448
  • As Low As: $1,100 /mo (Edit)
Stock #: 21171481
Tampa, FL
  • Available
  • New
  • Class: Fifth Wheel
  • Length: 45 ft 2in
  • Slides: 6
  • Dry Weight: 18,451
  • Sleeps: 6

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  • Front Entertainment
  • Front Living
  • Rear Bedroom
Floorplan
  • Available Beds King
  • Exterior Height 13 ft 4in
  • Exterior Width 8 ft 6in
  • Pin Weight 3,055 lbs
  • Gross Weight 24,000 lbs
  • Dry Weight 18,451 lbs
  • Tire Size 17.5
  • Axle Count 2
  • Fresh Water Capacity 79 gal
  • Grey Water Capacity 80 gal
  • Black Water Capacity 40 gal
  • Furnace BTU 40,000
  • Refrigerator Type French Door with Ice Maker
  • Refrigerator Size 18
  • Cooktop Burners 3
  • Shower Type Standard
  • Number of Awnings 2
  • Electrical Service 50 amps
  • Washer/Dryer Available Yes
  • TV Info LR Samsung LED Smart TV, BR 40"" Smart LED TV

The 2026 Forest River RiverStone 425FO is a flagship luxury fifth wheel designed for full-time RV living with a residential focus, offering a massive front office / front living layout, six slide-outs, and premium four-season construction. Measuring approximately 45 feet long with a 24,000 lb GVWR, it delivers maximum interior space, heavy-duty towing stability, and high-end residential comfort for long-term travel or stationary living. It is built with advanced insulation, dual A/C systems, and high-capacity tanks for extended stays in all climates.

Inside, the 425FO is designed like a luxury apartment on wheels. The front office/living area configuration creates a dedicated workspace or entertainment zone with theater seating, large entertainment center, and premium sound system. The opposing slide-outs in the main living area create an open-concept floorplan with wide walking space, residential furniture, and high-end finishes throughout. A full kitchen includes residential appliances, solid-surface countertops, large pantry storage, and a layout designed for extended cooking and storage needs.

The rear master suite provides a private retreat with a king bed slide-out, full wardrobe storage, and washer/dryer prep or installation, offering true residential functionality. The bathroom includes a large shower, porcelain toilet, and upgraded fixtures designed for long-term comfort. A half-bath in select configurations enhances convenience for guests and reduces congestion in the main living area.

Built for extended-season and full-time use, the RiverStone 425FO includes a high-capacity furnace, dual or triple air conditioning system, heated holding tanks, and advanced insulation package. Exterior construction features fiberglass sidewalls, a fully enclosed underbelly, multiple power awnings, and hydraulic leveling for quick setup. The chassis and suspension system are engineered to handle the weight and scale of a true luxury fifth wheel.

Technology and comfort upgrades include a smart control system, residential entertainment package, inverter power system, solar prep, and advanced connectivity options, making it suitable for both off-grid capability and luxury campground living.


Key Features

  • Front office / front living luxury fifth wheel layout
  • 6 slide-outs for maximum interior expansion
  • Approx. 45 ft length, 24,000 lb GVWR
  • Residential kitchen with full-size appliances
  • Large pantry and extensive storage throughout
  • Theater seating and premium entertainment center
  • Dedicated office/workspace area (front living configuration)
  • King bed slide-out in rear master suite

†Lazydays strives to ensure the accuracy of the information provided on this website. However, actual products, programs and services may differ materially from those on this site. Lazydays is not responsible for errors made in stated pricing or specifications. Specifications and availability subject to change without notice. Price, length, weight, or any other specifications cannot be relied upon. Buyers should verify and confirm all claims made on the website. Sale price includes all manufacturer discounts and rebates. All prices listed on this site exclude tax, tags and title fees. Applicable government fees, state taxes, dealer fees and emissions testing charges will be added to comply with state vehicle codes. Freight and prep costs are additional and vary by state. Contact Lazydays for complete details.

*90 Days – Payments can be deferred for 90 days with approved credit. Interest accrues from contract date. Financing terms subject to lender approval. Not valid with other offers. Actual products, programs and services may differ materially from those on this site. Lazydays is not responsible for errors made in stated pricing. Specifications and availability subject to change without notice. Document fees vary by location. See dealership for complete details.

**Lazydays believes the specifications on this site supplied by the manufacturer to be correct at the time posted. However, specifications, standard equipment, model availability, options, fabrics, and colors are subject to change without notice. Some equipment may be unavailable when a vehicle is built. Some vehicles are pictured with options, which may be available at extra cost or may not be available on some models. You should verify the equipment that is on all vehicles. If a new vehicle shown on this website is subject to an open safety recall, Lazydays cannot deliver the vehicle to you until the recall repair is completed. This is a requirement of federal law.

***The advertised discount contains a $5,000 finance incentive. Finance Incentive applies if financing for your RV purchase is obtained with assistance by Lazydays and placed with a third party lender. Terms and Conditions may apply. Contact our finance department for further details.

****Margaritaville offer valid for a limited time only at Lazydays RV of Tampa. Customers who purchase a new RV or complete a qualified service appointment (appointment must be booked and customer must show for the appointment) are eligible to receive a complimentary 3-day, 2-night stay at Camp Margaritaville RV Resort of Auburndale. Offer valid while supplies last. Promotion is non-transferable, has no cash value, and cannot be combined with other offers or promotions. Limit one promotional stay per customer, per transaction. Resort stay subject to availability and blackout dates may apply. Resort reservation must be made within 30 days of RV purchase or completed service appointment. Valid for Florida residents and legal U.S. residents only, 18 years or older. Additional terms and conditions may apply. Lazydays RV of Tampa reserves the right to modify or cancel this promotion at any time without notice. Void where prohibited by law.