2026 Riverstone 421FK

About This Riverstone 421FK

Forest River Fifth Wheel · 45' · Sleeps 2 - 4

Riverstone Luxury High Line Fifth Wheels are offering what luxury truly is in a high line RV and that is Quality and Convenience. Riverstone has made almost every competitor’s option’s a standard. After all, if you’re ready for a Top of the Line Luxury Fifth Wheel like Riverstone then you’re ready for ultimate convenience.

Unit details

Manufacturer
Forest River
Brand
Riverstone
Model
421FK
Type
Fifth Wheel
Condition
New
Year
2026
Interior Decor
Ripplebrook/Cocoa Bean
Stock No.
26Z005302
Order No.
RVN32741
VIN
4X4FRS835T0005302

Features

  • Fiberglass Exterior
  • Front Kitchen
  • King Bed
  • Rear Bedroom

Specifications

Key measurements for this model, with the manufacturer's full spec sheet below.

Key measurements

  • 45'Overall length
  • 18,331 lbsDry weight
  • 2 - 4Sleeps
  • 5Slide-outs
Specification Imperial Metric
Cargo Capacity 5,669 lbs 2,571.42 kg
Dry Weight 18,331 lbs 8,314.80 kg
GVWR 24,000 lbs 10,886.22 kg
Pin Weight 3,270 lbs 1,483.25 kg
Overall Height 13' 4" 4.06 m
Overall Length 45' 0" 13.72 m
Overall Width 102" 259.08 cm
Black Water Tank 40 gal 151.42 l
Fresh Water Tank 79 gal 299.05 l
Gray Water Tank 120 gal 454.25 l

As published by the manufacturer for this model.

Equipment & Options

Factory equipment included on this unit as configured.

  • Carbon Monoxide Detector
  • Max Graphics Package w/Painted Caps
  • Riverstone Luxury Package
    • Automatic 6-Point Hydraulic Level-Up System
    • 4 Camera Observation System Prep
    • Travlfi Journey XTR 46 LTE Router (Data Plan not incl.)
    • Splendid “Astral” Stackable Washer and Dryer
    • 40” LED TV in Bedroom
    • Stained Hardwood Cabinetry and Stiles Throughout
    • 12V Heated Holding Tanks
    • Large Infiniti Light over Kitchen Island (NA on 39FSK or 42FSKG)
    • Fischer Paykal Dishwasher
    • Ceiling Fan (NA on 39RBFL)
    • Truma Aqua Go Comfort On-Demand Hot Water Heater
    • Generator Prep
    • Energy Management System
    • Tank Sensors Display (Grey, Black and Fresh) integrated with Firefly Readout
    • Tire Pressure Sensors
  • RVIA Seal
  • Ultimate Electronics Package
    • Klipsch Sound Bar
    • 50 AMP MPPT Solar Controller
    • Living Room Samsung Smart TV
    • BMPro Integrated Touch Control
    • 2000 W Inverter
    • 200W Solar Panel
  • Full Body Paint, Blue Ice
  • Cabinetry, Cocoa Bean
  • Furniture, Ripplebrook
  • Legacy Package
    • Full Body Paint
    • 100 AH Lithium Battery
    • 3rd High Performance AC w/ Heat Pump
    • Hydraulic Disc Brakes
    • Additional 400W Solar Panel
    • LCI Waste Master System
  • Helux Coil Pin Box
  • 4 Camera System
  • Slide Room Awning Toppers with Metal Weather Shields
  • Outside TV
  • Starlink Standard Kit IPO TravlFI

Included with every new RV

Free
  • 12V Deep Cycle Battery
  • Propane in Tanks
  • Dealer Prep
  • North American Service

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We Deliver Nationwide

Pick it up at our dealership, or we bring it to your driveway.

Dealership pickup: 5555 Kennel Rd, Trenton, OH 45067 (free).

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Charlie D. Google review · October 2026
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