2026 Forest River RiverStone 421FK

New Fifth Wheel in Turlock, California, 95382

$158,992.00
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New 2026 Forest River RiverStone 421FK available in Turlock, California
2026 Forest River RiverStone 421FK - New Fifth Wheel For Sale by Best RV Center in Turlock, California features Slideout
2026 RiverStone 421FK by Forest River from Best RV Center in Turlock, California
New 2026 Forest River RiverStone 421FK available in Turlock, California

Unit Specs

  • Stock #37612
  • Year2026
  • ManufacturerForest River
  • Make Forest River
  • ModelRiverStone
  • Floorplan421FK
  • Floorplan LayoutFront Kitchen
    Kitchen Island
    Rear Bedroom
  • Type Fifth Wheel
  • ConditionNew
  • Length45' 0"
  • VIN005218
  • Price $211,560.00
  • Sale Price $158,992.00
  • Need to know your payment? Use our RV Loan Calculator!
  • Exterior ColorFrost, Mercury, Blue Ice, Riptide Red Paint Option
  • Sleeps4
  • Water Capacity (Fresh)79 gal
  • Water Capacity (Black)40 gal
  • Water Capacity (Grey)120 gal
  • Slideouts5
  • Tow/Hitch Weight3270 lbs

 

The following is a list of Additional Options besides the Standard Features come with the unit are:

  • 2026 RIVERSTONE 421FK
  •  
  • COCOA BEAN WOOD - RIPPLEBROOK FURNITURE
  • BLUE ICE CREAM PREMIUM FULL BODY PAINT
  • MAX GRAPHICS PACKAGE WITH PAINTED CAPS
  • RIVERSTONE LUXURY PACKAGE
  • ULTIMATE ELECTRONICS PACKAGE
  • LEGACY PACKAGE W/PREMIUM FULL BODY PAINT
  • FULL BODY PAINT, IOOAH LITHIUM BATTERY, 3RD
  • HIGH PERFORMANCE A/C W/HEAT PUMP,
  • HYDRAULIC DISC BRAKES, ADDITIONAL 400W OF
  • SOLAR PANELS, LCI WASTE MASTER SYSTEM
  • 4 CAMERA SYSTEM W/7” MONITOR SCREEN-
  • REAR/SIDE/ENTRY VIEW
  • SLIDE ROOM AWNING TOPPERS W/METAL
  • WEATHER SHIELDS
  • 39” OUTSIDE TV
  • CARBON MONOXIDE DETECTOR
  • RVIA SEAL
  • Front Kitchen
  • Kitchen Island
  • Rear Bedroom

2026 Forest River RiverStone 421FK Features


  • Exterior
    Slideout

2026 Forest River RiverStone 421FK Specifications

Dimensions

Height

13' 4"

Length

45' 0"

Width

8' 6"

Weights

Dry Weight

18,331 lbs

GVWR

24,000 lbs

Hitch Weight

3,270 lbs

Payload Capacity

5,669 lbs

Capacities

Refrigerator Capacity

18 cu ft

Sleep Capacity

4

Water Capacity - Black

40 gal

Water Capacity - Fresh

79 gal

Water Capacity - Grey

120 gal

Exterior

# Awnings

2

# Axles

2

# Doors

1

# Slides

5

Hitch

Fifth Wheel

Electrical

# A/C

2

A/C Spec

15,000 BTU High Performance Quiet Cool A/Cs with Heat Pumps

*MFG Specs are for base unit. Certain options may change specifications listed. Please consult dealer for more details. Data is provided by a 3rd party. RVUSA.com cannot guarantee the accuracy of the data presented.

2026 Forest River RiverStone 421FK Literature


Seller Info

Best RV Center

5340 Taylor Court
Turlock, CA 95382

Member Since 2006

See 866 Reviews

Unit Specs

  • Stock #37612
  • Year2026
  • ManufacturerForest River
  • Make Forest River
  • ModelRiverStone
  • Floorplan421FK
  • Floorplan LayoutFront Kitchen
    Kitchen Island
    Rear Bedroom
  • Type Fifth Wheel
  • ConditionNew
  • Length45' 0"
  • VIN005218
  • Price $211,560.00
  • Sale Price $158,992.00
  • Need to know your payment? Use our RV Loan Calculator!
  • Exterior ColorFrost, Mercury, Blue Ice, Riptide Red Paint Option
  • Sleeps4
  • Water Capacity (Fresh)79 gal
  • Water Capacity (Black)40 gal
  • Water Capacity (Grey)120 gal
  • Slideouts5
  • Tow/Hitch Weight3270 lbs

Email Seller

Request More Info on this 2026 Forest River RiverStone 421FK Offered for sale by Best RV Center
Best RV Center
Best RV Center

5340 Taylor Court
Turlock, CA 95382

Phone: Click to Call

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2026 Forest River RiverStone 421FK Gallery

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New 2026 Forest River RiverStone 421FK available in Turlock, California
2026 Forest River RiverStone 421FK - New Fifth Wheel For Sale by Best RV Center in Turlock, California features Slideout
2026 RiverStone 421FK by Forest River from Best RV Center in Turlock, California
New 2026 Forest River RiverStone 421FK available in Turlock, California