New 2026 Keystone Alpine 3712KB
Jackson, MIFun Town RVDirections
About this RV
Keystone RV Alpine fifth wheel 3712KB highlights: • Underbed Storage • Walk-In Shower • Kitchen Island • Front Living Area • 18 Cu. Ft. Residential Refrigerator This fifth wheel is decked out in luxuries! The full rear bathroom has a walk-in shower to freshen up in each morning, a dual sink vanity for two to get ready at once, and an area prepped to add an optional washer and dryer. You will enjoy a good night's rest on the king bed slide inside the private bedroom and others can sleep on the opposing tri-fold sofa sleeper slides once they are converted. There are two kitchen pantries to hold everyone's favorite snacks, one of which is a walk-in pantry. The 18 cu. ft. residential refrigerator will keep your perishables fresh and you also have the option to switch it out for a 19.6 cu. ft. 12V refrigerator instead. The front living area has a front entertainment center with a fireplace and a 50" TV, plus there is Thomas Payne theater seating with massage, heat, LED lights, and a USB charging station to keep your electronics charged while you relax! Luxury is not an option, it is a standard with each one of these Keystone RV Alpine fifth wheels!
Specifications as listed by the dealer
- Type
- Fifth wheel
- Condition
- New
- Year
- 2026
- Make
- Keystone
- Model
- Alpine 3712KB
- Stock number
- 229503
- VIN
- 4YDFALU29TE780234
- Hitch weight
- 3,170 lb
- Sleeps
- 6
- Slides
- 5
- Length
- 41 ft 5 in
- Ext Width
- 8 ft 4 in
- Ext Height
- 13 ft 4 in
- Interior Color
- DOVETAIL
- Exterior Color
- WHITE FOG
- Dry Weight
- 14,740 lbs
- Cargo Capacity
- 3,260 lbs
- Fresh Water Capacity
- 75 gals
- Grey Water Capacity
- 78 gals
- Black Water Capacity
- 44 gals
- Tire Size
- 215/75R17.5H
- Furnace BTU
- 35,000 btu
- Available Beds
- King
- Refrigerator Type
- Residential with Ice Maker
- Refrigerator Size
- 18 cu ft
- Convection Cooking
- Yes
- Cooktop Burners
- 3
- Number of Awnings
- 2
- Axle Weight
- 7,000 lbs
- LP Tank Capacity
- 30 lbs
- Water Heater Type
- On Demand
- AC BTU
- 46,500 btu
- TV Info
- LR 50" LED TV, BR Smart HDTV
- Awning Info
- (2) 14' Carefree with Adjustable Arms
- Axle Count
- 2
- Washer/Dryer Available
- Yes
- Number of LP Tanks
- 2
- Shower Type
- Walk-In Shower
- Electrical Service
- 50 amp
Features
- 12" I-Beam frame and 100" wide-body construction
- Road Armor™ shock absorbing hitch pin
- Hitch Vision™ w/ LED lighting (model specific)
- Laminated sidewalls w/ double-welded aluminum construction
- Large, tinted safety glass windows (80% tint)
- Dual pane windows (optional)
- Slide Awnings: Triples (optional)
- Slide Awnings: Quads and Above (optional, model specific)
- Painted fiberglass cap w/ patented Key Shield™ protection and LED lighting
- Radius roof w/ 5" pre-engineered roof trusses and walkable rafters
- 1-piece Alpha Super Flex TPO membrane
- Exterior ladder
- Summit slide-rooms w/ 6'10" interior height and hydraulic selector valves for slide outs
- Heated and enclosed underbelly w/ 1-piece polypropylene
- Dexter® heavy duty 8,000 lb. Axles (model specific)
- Dexter® heavy duty 7,000 lb. axles w/ Nev-R-Adjust brakes (model specific)
- Dexter® heavy duty 7,000 lb. Axles (model specific)
- Road Armor™ Shock Absorbing Suspension (model specific)
- TCS Suspension w/ABS brakes
- Lippert TPMS Prep (model specific)
- Lippert TPMS Monitoring system
- Saliun G-rated tires (model specific)
- Cooper H-rated tires
- Electric gate Valves
- Titan: One touch, 6-point hydraulic level up system
- Super size, 6'4" tall, 30" wide entry door
- Lippert Strut Assisted SolidStep®
- 200 Cu. Ft. heated basement storage and class A style, dual latch slam doors
- Back-up and side camera prep
- Battery quick-disconnect
- Easy access Nautilus™ water works center - fully enclosed and heated
- Canister style water filtration
- Oversized 73" sewer hose carrier
- Generator prep (optional)
- 5,550 watt Cummins Onan LP gas generator (optional)
- 75 gal. fresh water, 83 gal. gray water, 49 gal. black water tanks
- Outdoor kitchen/entertainment (model specific)
- 50 AMP service w/ electric power-cord reel
- Outside shower w/ hot and cold water
- Carefree power awning w/ adjustable arms
Questions about this 2026 Keystone Alpine 3712KB
How many 2026 Alpine 3712KBs are on RV Shift?
2, all new and all at Fun Town RV. This one is $78,336 and the other one is $87,973.
From RV Shift’s listings, updated nightlyIs 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 16,000 lb, with a fifth-wheel hitch. That is its 14,740 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.