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USED 2017 Keystone MONTANA 3721rl

2017 Keystone Montana 3721RL Fifth Wheel

This unit is GST exempt. 

This Keystone Montana 3721rl fifth wheel features loads of interior space with three large slide outs, a rear living room layout, and convenient kitchen island. 

Upon entry of the Montana 3721RL and find a wide-open concept living space with dual opposing slides. There is a dinette for four and optional theater seating in a slide out to your immediate left once inside. A nice hide-a-bed sofa fills the rear wall along with dual end tables, plus overhead cabinets the entire width of the unit.

A second slide is found opposite the door and begins with an entertainment center including a HD TV and fireplace adjacent to the sofa. Next, you will find a pantry, counter space, a three burner range, and 18 cu. ft. residential refrigerator slide out. A convenient island offers additional counter space and storage, plus it is the location of a double kitchen sink.

You will also find a floor to ceiling wardrobe just inside the door on your right before heading up the steps to a front master bedroom and bath.

The bath features a 48" x 30" shower with seat, toilet, and vanity with sink. The sliding door in the bath leads to the front master suite. In the hall you will find a slide out space prepped for a washer and dryer that is also connected to the bedroom closet and queen bed slide out. You can choose an optional king bed if you enjoy a bit more sleeping space, and both offer storage underneath.

The bedroom also includes a full front closet, dresser with HD TV above.

Outside you can enjoy the shade from two awnings. The rear awning is 11' and the front awning is 16', also you will find an outdoor entertainment center with a 32" HDTV, plus so much more!

Standard Features (2017)

 Living Area

  • Glazed zinfandel cherry cabinetry
  • Solid hardwood slide out fascia
  • Roller shades
  • Front to rear interior vaulted ceiling
  • Tri-fold hide-a-bed sofa
  • Hidden cabinet hinges
  • 6’ 6” Tall main slide-outs
  • Flush Mounted LED Interior Lights
  • Ceiling Fan with Light Kit
  • Ceiling crown molding with LED Lighting


  • Stainless steel kitchen sink
  • Solid surface flush mount sink covers
  • 30” over-the-range convection/microwave oven
  • Power vent fan with rain sensor in kitchen
  • Full extension drawer guides
  • Pull out kitchen trash can (Most models)
  • Solid surface kitchen counter-tops
  • Hi arch kitchen faucet with integrated pull down sprayer
  • Sink cover storage below kitchen sink
  • 18 Cubic foot 4 door RV refrigerator
  • Residential french door refrigerator w/ ice maker and 1000 watt inverter 
  • Wall mounted free standing dinette with (2) fixed and (2) folding chairs
  • Central vacuum with interior and exterior ports plus toe kick sweep

Home Entertainment

  • RG-6 satellite prep
  • 48” HD LED TV in living area
  • DVD/CD/MP3 entertainment system with bluetooth
  • Winegard Rayzar Z-1 HD digital TV antenna
  • 32” HD LED TV in bedroom
  • Marine grade exterior speakers


  • 60” x 80” Queen Bed
  • iRelax high density mattress
  • (2) Bedside electrical outlets
  • Bedside night stands
  • Reading lights over bed
  • Prepped for combo OR 2 piece washer/dryer with separate 20amp circuits for each appliance
  • Quilted headboard
  • Massive storage under bed


  • Seamless 48” x 30” fiberglass shower
  • Porcelain foot flush toilet
  • Solid surface bathroom vanity
  • Wire & frame for 3rd A/C
  • 75amp Converter
  • Sky light over shower
  • 12 gallon DSI gas/electric water heater
  • 30,000 BTU dual whisper quiet A/C system with heat pump
  • 50amp Service


  • 5” Arched fiberglass composite roof rafters
  • Laminated sidewalls with dual layered luan and metal backing strips to anchor interior cabinets
  • Powder coated 12” steel I-beam frame
  • (R-38 Equivalent) Radiant technology insulated roof
  • (R-11) Insulated sidewalls
  • Insulated and heated holding tanks and dump valves
  • Insulated in-floor water lines
  • 35,000 BTU furnace
  • Welded aluminum framed walls and floors
  • Seamless 5/8” thick Dynaspan® floor decking
  • Tested and approved for 0 degree usage since 2005
  • (R-21) Insulated main floor
  • (R-15) Insulated slideout floors
  • Vented attic
  • Enclosed and heated low point drains
  • 12v electric tank heaters
  • 3” x 14” Residential in-floor straight line heat duct system
  • 5100 BTU electric fireplace


  • Max Turn front cap and radius frame with Hitch Vision™
  • Prepped for rear view camera
  • G-range tires
  • 16” 8-Lug Aluminum wheels
  • Back-up lights
  • Undermount spare tire and carrier
  • MORryde pin box
  • MORryde CRE 3000 suspension
  • Heavy duty wet bolt kit with bronze bushings and 1/2” shackle links
  • 7000 lb Dexter E-Z lube axles with self adjusting brakes

Exterior Features

  • High gloss gel coated sidewalls and rear wall
  • Extra large (30” wide by 78” tall) entry door with friction hinge and integrated window shade
  • Rear roof ladder
  • Slam latch pass thru storage compartment doors
  • 12v electric patio awning with LED lights
  • Patio security light
  • Automotive paint with 2 layers of clear coat on front cap
  • Automotive frameless safety glass windows
  • Fold away entry handle
  • Enormous drop frame pass thru storage compartment
  • MORryde “Step Above” entry steps
  • 2nd 12v electric patio awning w/LED lights on slide-out (3000, 3160, 3720, 3721, 3810, 3811, 3910, 3911, 3950)
  • Heated central exterior water and convenience center

Four Season Living Package (Mandatory)

  • Insulated and Enclosed Underbelly
  • (R-21) Insulated Main Floor
  • (R-11) Insulated Double Layer Supported Fiberglass Sidewalls
  • Fully Vented Attic
  • 12v Electric Tank Heaters
  • (R-15) Insulated Slideout Floors
  • (R-38 Equivalent) Radiant Technology Insulated Roof
  • Heated Pass Through Convenience Center

Residential Living Package (Mandatory)

  • Best in Class MOR/Ryde Hitch Pin
  • Wireless Back-up Camera with in Vehicle Mobile Display
  • Free Standing Dinette with (2) Fixed and (2) Folding Chairs
  • 6’6” Extra Tall Main Slideout Heights
  • Upgrade Solid Surface Kitchen and Bathroom Countertops with Range and Sink Covers
  • 30” OTR Convection Microwave
  • French Door Residential Refrigerator w/ ice maker
  • Central Vacuum with Interior and Exterior Ports and Toe Kick Sweep Convenience
  • Patented ‘Max Turn” Front Cap with Hitch Vision and LED Profile Lighting
  • MOR/Ryde CRE 3000 Suspension System
  • Slam Latch Pass Through Storage Compartment Doors
  • Front to Rear Interior Vaulted Ceiling
  • Washer and Dryer Prep
  • LED Interior Lighting
  • Glazed Hardwood Cherry Cabinet doors and Drawers
  • RV Four Door Refrigerator
  • Power Vent Fan in Kitchen


  • King Bed
  • 5100 BTU electric fireplace (Mandatory option)
  • Power vent fan with rain sensor in bathroom
  • 30,000 BTU dual whisper quiet A/C system with heat pump (Mandatory Option)
  • 6 Point hydraulic automatic leveling system (Mandatory option)
  • Outside entertainment center with 32” HD LED TV (Mandatory option) (N/A 3820)
  • (5) Goodyear “G” range tires
  • Dual pane frameless windows


Please see us for a complete list of features and available options.


All standard features and specifications are subject to change.

Sale Price
Sale Price
Blowout Price
$426 bi-weekly. OAC
Stock # PA398
Year 2017
Make Keystone
Condition USED


Length (FT) 39'7"'
Total Fresh Water Tank Capacity (GAL/L) 66
Total Gray Water Tank Capacity (GAL/L) 88
Total Black Water Tank Capacity (GAL/L) 49
Number Of Slideouts 3
Max Sleeping Count UP TO 4
Hitch Weight (LBS) 2840 LBS
Dry Weight (LBS) 12885 LBS
Promotion Consignment
Other Specifications
Length (FT/M) 39.5
Interior Decor NIGHTFALL
Ride Digital