Used 2018 Keystone Montana 3811
Justin, TXYour RV Broker
Questions about this 2018 Keystone Montana 3811
What does it cost?
Your RV Broker lists it at $38,900.
Is it new or used?
Used. It is a 2018 model.
Is it still for sale?
Your RV Broker’s website listed it for sale on October 31, 2026. RV Shift checks dealers’ websites about once a day, so ask the dealer to be sure.
Where is it?
At Your RV Broker in Justin, TX. See all 42 RVs Your RV Broker lists on RV Shift.
How many people does it sleep?
The dealer lists it as sleeping 4.
How long is it?
40' 9", with 3 slide-outs, as the dealer lists it.
How much does it weigh?
The dealer lists a dry weight (empty) of 13,400 lb and a GVWR (the most it is allowed to weigh loaded) of 16,705 lb.
What does it take to tow it?
RV Finder’s estimate: it needs a vehicle rated to tow about 14,600 lb, with a fifth-wheel hitch. That is its 13,400 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 Your RV Broker.
About this RV
A single-owner 2018 Keystone Montana 3811MS Legacy Edition — a spacious triple-slide fifth wheel with a front master suite, a rear living-and-kitchen great room, and a residential kitchen. It left the factory with more than $27,000 in upgrade packages ($105,472 original MSRP when new) and has since been extensively upgraded by its owner. This single-owner 2018 Keystone Montana 3811MS Legacy Edition is a genuinely impressive triple-slide fifth wheel that lives large. Up front, a private master suite features Montana’s patent-pending window-lounge design and a walk-in wardrobe; step back through a dual-entry bath into a rear living-and-kitchen great room warmed by a fireplace and anchored by a center island and a 20 cu. ft. residential refrigerator. It left the factory with the Four Season Living, Residential Living, and Legacy Upgrade packages, six-point hydraulic auto-leveling, and an outdoor entertainment center — more than $27,000 in options toward a $105,472 original MSRP. Since then its owner has added a great deal: an Onan 5.5 kW generator, a washer and dryer, upgraded 8,000-lb axles with disc brakes and Roadmaster suspension, new tires and batteries, and a central vacuum.
Specifications as listed by the dealer
- Type
- Fifth wheel
- Condition
- Used
- Year
- 2018
- Make
- Keystone
- Model
- Montana 3811
- Stock number
- 703267
- Length
- 40′ 9″
- Gross Weight
- 16,705 lbs GVWR
- Dry Weight
- 13,400 lbs
- Sleeps
- 4
- Slides
- 3
- Fresh Water
- 66 gal
- Gray Tank
- 88 gal
- Black Tank
- 49 gal
- Height
- 13′ 5″
- Width
- 8′ 0″
- Electrical
- 50 Amp Service
Features
- 16,705 lbs GVWR · 2,705 lb hitch (factory)
- Upgraded 8,000-lb axles · disc brakes
- Six-point hydraulic auto-leveling
- Queen bed · sleeps 4
- Two power awnings
- Owner-added Onan 5.5 kW generator
- Washer & dryer installed
- Upgraded 8,000-lb axles, disc brakes & Roadmaster suspension
- New tires, new batteries (2026) & central vacuum
- Factory Four Season, Residential Living & Legacy packages
- Montana Four Season Living Package (zero-degree tested & rated)
- Enclosed, heated underbelly
- 35,000 BTU furnace + dual roof A/C
- Roof-mounted solar prep for future panels
- Center Kitchen Island
- 20 cu. ft. Residential Refrigerator w/ Ice Maker
- Convection Microwave
- Furrion Oven/Range with Auto-Ignite
- Pantry & Hutch Storage
- Double Sink with Cover
- Rear Living-and-Kitchen Great Room
- Electric Fireplace
- Power Theater Seating
- New Recliners (owner-added)
- Free-Standing Dinette w/ Storage
- Flat-Screen HDTVs & LED Lighting
- Queen Bed (King optional from factory)
- Front Window-Lounge (Patent-Pending Design) w/ Under-Storage
- Walk-In Wardrobe Closet
- Washer & Dryer (owner-installed)
- iRelax High-Density Mattress
- Dual-Entry Bath (bedroom & main-living access)
- Shower with Skylight
- New Toilet (owner-replaced)
- Medicine Cabinet & Vanity
- Linen Storage
- Outdoor Entertainment Center w/ 32″ HDTV
- Two Power Awnings + Slide-Awning Package
- Drop-Frame Pass-Through Storage
- Two Spare Tires
Listing and photos: Your RV Broker. Details come from the dealership and can change; confirm them before you buy.