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ALBANY 225-217-0780
NEAR HAMMOND

BOUTTE 985-200-8292

NEW 2026 KEYSTONE MONTANA 3900RK

DESCRIPTION

The 2026 Keystone Montana 3900RK is an all-new luxury fifth-wheel featuring a bath-and-a-half, quad-slide layout anchored by an expansive, chef-inspired rear kitchen. 

1. Chef's Rear Kitchen (RK) Layout

  • U-Shaped Workspace: Offers seamless solid-surface countertops and an oversized deep stainless steel sink with modular attachments.

  • Panoramic Rear Window: Floods the kitchen with natural light and provides extensive views of your campsite.

  • Heavy-Duty Storage: Features a floor-to-ceiling pantry with four adjustable shelves alongside 22 cabinet doors and drawers.

  • Premium Appliances: Equipped with a 20-cubic-foot 12V double-door refrigerator  and a Furrion 4-burner freestanding range.

2. Mid-Living & Entertainment Area

  • L-Shaped Seating: Includes a plush La-Z-Boy furniture package featuring recliners and a built-in sleeper sofa to accommodate extra guests.

  • JBL Theater System: Dictates the focal point with a 65-inch Smart TV paired with a JBL 2.1 soundbar and a 5,000 BTU decorative fireplace.

  • Beverage & Coffee Bar: Positioned on the main level with dedicated glassware storage and an integrated wine refrigerator.

  • Dual-Purpose Workstation: Features a versatile desk station integrated near 7-foot tall slideout windows for working remotely or dining.

3. Master Suite & Primary Bath 

  • Front Bathroom Haven: Spans the entire front cap, providing an expansive dual-sink vanity, a residential shower stall, and a private porcelain toilet.

  • Walk-In Wardrobe: Positioned at the very front with deep clothing organization racks and a pre-installed rechargeable cordless vacuum cleaner.

  • King Bed Slide Out: Houses a standard king-size bed flanked by bedside 110V/USB power hubs.

  • Secondary Amenities: Includes a dedicated bedroom dresser, a second 5,000 BTU fireplace, and a secondary 40-inch 4K Smart TV.

4. Utility & Exterior Features 

  • Mudroom Half-Bath: Centrally located near the primary entrance door, featuring stackable washer and dryer prep to prevent tracking dirt into the master suite.

  • Chassis Upgrades: Built on an upgraded 12-inch I-beam Z-frame with a Curt Helix Pin Box to decrease frame stress by 30%.

  • Outdoor Entertaining: Equipped with dual power awnings, a pull-out exterior 50-inch TV, and massive pass-through baggage doors with sliding storage trays.

MSRP
$165,881
Bents RV Price
$129,995
$902 / month
Estimated payment for 240 month loan, 8.49% APR, $25,999 down.
Savings $35,886
Stock # 9188
Location Albany (Near Hammond)
Year 2026
Make Keystone
Model Montana
Trim 3900RK
Condition NEW
Status AVAILABLE

Specifications

Vin 4YDFM0V2XT4700952
General
Exterior Color WHITE
Class FIFTH WHEEL
Length (FT) 43' 10"
Number Of Slideouts 4
Max Sleeping Count 4
Total Black Water Tank Capacity (GAL) 100 GAL
Dry Weight (LBS) 17095 LBS
Sleeps 5-6
Shop By Payment $750 or more
Shop By Weight Over 10000
Floorplan Couples Coach - No Bunks, Rear Kitchen
Other Features 2 or more ACs, Exterior: Fiberglass, Bath and a Half, Solar Prep, 50 Amp
Other Specifications
Inventory Options DECOR - MONTANA - OAKMONT
EXTERIOR DECOR - MONTANA - MYSTIC WHITE
PEACE OF MIND PACKAGE
CONVENIENCE PACKAGE
ULTIMATE COMFORT PACKAGE
REFRIGERATOR - 12V - 20 CF
TCS SUSPENSION W/8K AXLES
ABS BRAKING SYSTEM
HELUX PIN BOX
H - RANGE TIRES
TRIPLE A/C PACKAGE
6 POINT HYDRAULIC AUTO LEVELING
WASHER AND DRYER
SOLAR FLEX DISCOVER
RVIA SEAL-GO CAMPING
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Disclosure:
Please be aware that the images shown may not depict the exact unit available for purchase. For accurate details, including specific pricing and payment options, please contact a salesperson directly. All advertised prices are subject to change. Financing options may be limited for units over 10 years old. All information provided on www.bentsrv.com is accurate as of the publication date but may change without notice. Bents RV reserves the right to make modifications to unit features, specifications, and pricing without obligation. Advertisements may feature standard factory features, optional equipment, or decorative items that may not be available in the exact unit offered for sale. For the latest, most accurate information, including specific features and availability, please contact our sales team.
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