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New 2026 Keystone Arcadia 3790RO

Surprise, AZFun Town RVDirections

Sleeps4
Length41' 7"
Dry weight12,570 lb
Slide-outs3

About this RV

Keystone RV Arcadia fifth wheel 3790RO highlights: • Kitchen Island • Front Private Bedroom • Fireplace • Two Awnings • Pass-Through Storage Tucked in the rear, the desk creates a quiet spot for remote work, trip planning, or morning coffee with a view. The TV nearby means you can switch from spreadsheets to streaming without moving far. In the living area, a tri-fold sofa converts from seating to sleeping in seconds, while the entertainment center and fireplace set the scene for cozy nights in. Plus, theater seating gives you front-row comfort for movies or the big game, and the ceiling fan keeps the air moving. The kitchen flows right into the living space for easy serving and socializing, boasting a microwave, 12V refrigerator, kitchen island that adds prep room and casual seating, the sink makes cleanup simple, and the dinette with chairs gives you a dedicated spot for meals and cards. Up front, the bedroom has a king bed for sprawling out after long travel days, a dresser with hidden storage, and a bench seat that is perfect for putting on boots or setting out clothes for tomorrow.

Specifications as listed by the dealer

Type
Fifth wheel
Condition
New
Year
2026
Make
Keystone
Model
Arcadia 3790RO
Stock number
229509
VIN
4YDFARU26TE550587
Hitch weight
2,650 lb
Sleeps
4
Slides
3
Length
41 ft 7 in
Ext Height
13 ft 5 in
Interior Color
LODGE
Exterior Color
WHITE
Dry Weight
12,570 lbs
Cargo Capacity
1,930 lbs
Fresh Water Capacity
54 gals
Grey Water Capacity
78 gals
Black Water Capacity
48 gals
Tire Size
ST235/80R16E
Furnace BTU
35,000 btu
Available Beds
King
Refrigerator Type
12V Solar Friendly
Refrigerator Size
16 cu ft
Cooktop Burners
3
Shower Size
48" x 30"
Number of Awnings
2
LP Tank Capacity
30 lbs
Water Heater Type
Suburban On Demand Tankless
AC BTU
18,000 btu
TV Info
LR Smart 50" HD Flat Screen
Awning Info
11' & 16' Power w/Adjustable Arms and LED Light Strip
Axle Count
2
Washer/Dryer Available
Yes
Number of LP Tanks
2
Shower Type
Tub/Shower Combo
Electrical Service
50 amp

Features

  • Road Defense™ Powder Coated Chassis
  • Heated and enclosed water supply lines in underbelly
  • SpaceSaver™ upper deck chassis design
  • Upgraded Helux Pin Box
  • Ground Control™ 3.0 auto-leveling system
  • 2" Towing Hitch
  • Anti Lock Brakes
  • Road Armor Shock Absorbing equalization system
  • Greaseable suspension wet bolts w/ bronze bushings
  • HD 1/2" thick shackles
  • SolidStep™ 4 step entrance with extra-wide top step
  • 16" aluminum wheels
  • 16" E-load, hi-capacity tires
  • 16" Spare Tire
  • Fully laminated, aluminum framed, one-piece sidewalls
  • Automotive grade, high gloss fiberglass exterior
  • Automotive-grade painted fiberglass front cap w/ KeyShield™ protection & amber LED lights
  • (2) LED docking lights under front cap at hitch pin
  • Trunk™ pass-through storage w/ 88 cu. ft. of clutter-free capacity
  • Best in Class Unobstructed Rubbercoin pass-through storage
  • (2) XL pass-through baggage doors
  • XL safety glass windows w/ 80% tint
  • Extra-wide 30" entrance door w/ friction hinge
  • Upgraded MorRyde extended grab handrail main entrance
  • Large power awning w/ adjustable arms and LED light strip
  • Intelligently designed, stand-alone convenience center
  • Battery disconnect
  • Black tank flush
  • Power water fill connection
  • Easy winterization connection
  • Rear observation camera prep
  • 5" pre-engineered roof trusses on 16" centers
  • 3/8" walk-on roof decking
  • 50 Amp electric, pre-wired and braced for ducted bedroom A/C option
  • 1-piece AlphaPly™ TPO membrane (lifetime limited warranty)
  • Winegard AIR 360+™ amplified, omni-directional antenna
  • Roof-mounted satellite connectivity
  • Rear ladder
  • CSA construction and seal (Optional)
  • Designer vinyl flooring throughout

Questions about this 2026 Keystone Arcadia 3790RO

Is it still for sale?

Fun Town RV’s website listed it for sale on November 5, 2026. RV Shift checks dealers’ websites about once a day, so ask the dealer to be sure.

What does it take to tow it?

RV Finder’s estimate: it needs a vehicle rated to tow about 13,800 lb, with a fifth-wheel hitch. That is its 12,570 lb dry weight plus 1,200 lb for water and gear, rounded up to the next 100 lb. RV Finder shows whether it is within your vehicle’s published rating, from the maker’s own towing guide, and checks tongue weight and payload too. Confirm your numbers in your owner’s manual and on the sticker in the driver’s door jamb. Check it in RV Finder

How do I ask the dealer about it?

Use the Check availability form on this page. Your message comes to RV Shift and we pass it to Fun Town RV. You can also call Fun Town RV at (833) 386-8696.

Listing and photos: Fun Town RV. Details come from the dealership and can change; confirm them before you buy.

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