Used 2017 Keystone Montana 3721RL
Elkhart, INFun Town RVDirections
About this RV
This Keystone Montana fifth wheel features loads of interior space with three large slide outs, a rear living room layout, and convenient kitchen island. This model is identical to model 3720RL. Enter model 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.
Specifications as listed by the dealer
- Type
- Fifth wheel
- Condition
- Used
- Year
- 2017
- Make
- Keystone
- Model
- Montana 3721RL
- Stock number
- 212498A
- VIN
- 4YDF37225H4703698
- Hitch weight
- 2,840 lb
- Sleeps
- 4
- Slides
- 3
- Length
- 39 ft 7 in
- Ext Width
- 8 ft
- Ext Height
- 13 ft 5 in
- Dry Weight
- 12,885 lbs
- Cargo Capacity
- 3,955 lbs
- Fresh Water Capacity
- 66 gals
- Grey Water Capacity
- 88 gals
- Black Water Capacity
- 49 gals
- Tire Size
- ST235/80R16G
- Furnace BTU
- 35,000 btu
- Available Beds
- Queen
- Refrigerator Type
- Residential French Door with Ice Maker
- Refrigerator Size
- 18 cu ft
- Convection Cooking
- Yes
- Cooktop Burners
- 3
- Shower Size
- 48" x 30"
- Number of Awnings
- 2
- Axle Weight
- 14,000 lbs
- LP Tank Capacity
- 60
- Water Heater Capacity
- 12 gal
- Water Heater Type
- DSI Gas/Electric
- AC BTU
- 30,000 btu
- TV Info
- Living Room 48" LED TV, Bedroom 32" LED TV, Outside 32" HD TV
- Awning Info
- 11', 16' Electric
- Axle Count
- 2
- Washer/Dryer Available
- Yes
- Number of LP Tanks
- 2
- Shower Type
- Shower w/Seat
Features
- 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 (3000, 3160, 3660, 3720, 3730, 3790, 3810, 3820, 3910, 3950)
- Residential french door refrigerator w/ ice maker and 1000 watt inverter (3661, 3721, 3731, 3791, 3811, 3911)
- Wall mounted free standing dinette with (2) fixed and (2) folding chairs (Optional 3820)
- Central vacuum with interior and exterior ports plus toe kick sweep
- 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
Questions about this 2017 Keystone Montana 3721RL
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 14,100 lb, with a fifth-wheel hitch. That is its 12,885 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.