Skip to main contentSkip to navigation
RV Envy
RV floor plans
Inventory
Sell your RV
Dealers
Dashboard
  • Class A motorhomes
  • Class C motorhomes
  • Class B vans
  • Fifth wheel trailers
  • Travel trailers
  • Pop-up campers
  • Advanced search
  • Floor plan wizard
  • Inventory

Browse popular layouts & features

Class A motorhomes

  • … with bunk beds
  • … with two bedrooms
  • … with bath and a half
  • … with two full bathrooms
  • … with bunk over cab
  • … with rear bathroom
Browse all features →

Class B vans

  • … with King size bed
  • … with rear twin beds
  • … with Murphy bed
  • … with rear bathroom
  • … with dual twin beds
Browse all features →

Class C motorhomes

  • … with bunk over cab
  • … with bunk beds
  • … with rear bathroom
  • … with rear twin beds
  • … with Murphy bed
  • … with outdoor kitchen
  • … with outdoor TV
Browse all features →

Fifth wheel trailers

  • … with bath and a half
  • … with two bathrooms
  • … with bunk beds
  • … with two bedrooms
  • … with side patio
  • … with rear patio
  • … with outdoor kitchen
  • … with washer/dryer
  • … with front living
Browse all features →

Travel trailers

  • … with bunk beds
  • … with two bedrooms
  • … with Murphy bed
  • … with outdoor kitchen
  • … with rear bath
  • … with front bedroom
Browse all features →

Popup campers

  • under $10k
  • under $15k
  • under 2,000 lbs
  • under 3,000 lbs
Browse all features →

RV dealers by metro area

Los AngelesDallas–Fort WorthHoustonAtlantaPhoenixTampa BayOrlandoDenverChicagoSeattleNashvilleTorontoBrowse all metro areas →

Explore

  • RV floor plans
  • Browse inventory
  • Sell your RV
  • Dealers
  • Shopping tips

Company

  • About
  • Our story
  • Contact

Services

  • Dealer leads
  • Dealer websites & CRM
  • OEM advertising
  • Shopper insights

Join our mailing list

We don't send much, but you won't want to miss it!

RV Envy

The RV search engine. Find your dream RV.

We do our best to keep listing details accurate, but pricing, specifications, and availability come from third-party sources and can change without notice. We can't guarantee accuracy, so please confirm the details with the dealer before making any decisions. See something inaccurate? Contact us.

© 2026 RV Envy. All rights reserved.

For AI agentsPrivacyTerms
Dashboard
    1. Home
    2. Inventory
    3. Pinnacle RV
    4. 2021 Keystone Alpine 3120RS

    2021 Keystone Alpine 3120RS

    UsedFifth wheel|Stock #100554|Located at Pinnacle RV in Hudson Oaks, TX

    MSRP

    Sale price

    $42,995

    Not listed

    RV Envy

    2021 Keystone Alpine 3120RS

    Used · Fifth wheel

    MSRP

    $42,995

    Sale price

    Not listed

    Pinnacle RV

    3541 Fort Worth Highway

    Hudson Oaks, TX 76087

    (682) 394-5900

    Stock #100554

    2021 Keystone Alpine 3120RS floor plan

    Specifications

    Length34 ft 11 in
    Dry weight12,108 lbs
    Sleeps4 people
    Slideouts3

    Full specifications

    AC BTU30000 btu
    Available BedsKing
    Awning Info11' and 16' Carefree with Adjustable Arms
    Axle Count2
    Axle Weight7000 lbs
    Black Water Capacity49 gals
    Cargo Capacity2892 lbs
    Convection CookingYes
    Cooktop Burners3
    Dry Weight12108 lbs
    Electrical Service50 amp
    Ext Height13 ft 4 in
    Ext Width8 ft 4 in
    Exterior ColorBIEGE
    Fresh Water Capacity54 gals
    Furnace BTU35000 btu
    Grey Water Capacity83 gals
    Hitch Weight2595 lbs
    LP Tank Capacity30 lbs
    Length34 ft 11 in
    Number of Awnings2
    Number of LP Tanks2
    Refrigerator Size18 cu ft
    Refrigerator TypeGas/Electric
    Shower TypeShower w/Seat
    Sleeps4
    Slides3
    TV InfoLR 50" LED TV
    Tire SizeST235/85R16G
    Washer/Dryer AvailableYes
    Water Heater TypeOn Demand

    Options and equipment may differ from those listed. We do our best to ensure accuracy, but please confirm all details with the dealer before purchase.

    Get more info

    2021 Alpine 3120RS

    2021 Alpine 3120RS
    I'm interested in
    Preferred contact method
    EmailPhone callText message

    The dealer sees only your first name and general area, not your full name, email, or phone. You'll chat through RV Envy and can share your info anytime.

    We'll add you to our weekly newsletter too, but you can unsubscribe at anytime.

    Dealer information

    Pinnacle RV

    3541 Fort Worth Highway
    Hudson Oaks, TX 76087
    (682) 394-5900

    Keystone RV Alpine fifth wheel 3120RS highlights:

    • Hide-A-Bed Sleeper

    • Kitchen Island

    • Free Standing Dinette

    • Shower w/ Seat

    • Fireplace

    • Patent-Pending Windshield

    If you and your spouse are ready to escape the hustle and bustle of everyday life then you need this Alpine fifth wheel! You will enjoy a good night's rest each night on the king bed with storage underneath inside the front private bedroom. There is also a front wardrobe with a chest for you to keep your clothes neat and tidy and access into the dual entry bath. The kitchen area is equipped with many handy features to make camping even easier like the kitchen island, the large pantry to hold everyone's favorite snacks, and the area that is prepped for the stackable optional washer and dryer. The rear living area is sure to be a hit too with the hide-a-bed sofa sleeper and the theater seating located across from the entertainment center!  You might even like to choose the optional residential refrigerator with ice maker.

    When you choose an Alpine fifth wheel by Keystone RV, you are choosing luxury, innovation, modern style and so much more! The stunning Aspen Oak cabinetry with contrasting Renewed Oak accents and vintage wire mesh glass inserts, the polished natural stone solid surface countertops, and the varied plank width resilient flooring throughout are just a few highlights inside. Some other noteworthy features include the high-fidelity video and audio to withstand road vibration with three, separately controlled sound zones with smartphone app capability, and the iN-Command system with oversized touchscreen monitor giving you control of the slides, awnings, and HVAC. Each Alpine is built with 100" wide body construction, a dual 15,000 BTU Whisper Quiet A/C system, a Nautilus On-Demand water heater for instant, endless hot water, and insulated wrapped tanks with 12 volt heat pads allowing you to travel every season.

    Keystone RV Alpine fifth wheel 3120RS highlights:

    • Hide-A-Bed Sleeper

    • Kitchen Island

    • Free Standing Dinette

    • Shower w/ Seat

    • Fireplace

    • Patent-Pending Windshield

    If you and your spouse are ready to escape the hustle and bustle of everyday life then you need this Alpine fifth wheel! You will enjoy a good night's rest each night on the king bed with storage underneath inside the front private bedroom. There is also a front wardrobe with a chest for you to keep your clothes neat and tidy and access into the dual entry bath. The kitchen area is equipped with many handy features to make camping even easier like the kitchen island, the large pantry to hold everyone's favorite snacks, and the area that is prepped for the stackable optional washer and dryer. The rear living area is sure to be a hit too with the hide-a-bed sofa sleeper and the theater seating located across from the entertainment center!  You might even like to choose the optional residential refrigerator with ice maker.

    When you choose an Alpine fifth wheel by Keystone RV, you are choosing luxury, innovation, modern style and so much more! The stunning Aspen Oak cabinetry with contrasting Renewed Oak accents and vintage wire mesh glass inserts, the polished natural stone solid surface countertops, and the varied plank width resilient flooring throughout are just a few highlights inside. Some other noteworthy features include the high-fidelity video and audio to withstand road vibration with three, separately controlled sound zones with smartphone app capability, and the iN-Command system with oversized touchscreen monitor giving you control of the slides, awnings, and HVAC. Each Alpine is built with 100" wide body construction, a dual 15,000 BTU Whisper Quiet A/C system, a Nautilus On-Demand water heater for instant, endless hot water, and insulated wrapped tanks with 12 volt heat pads allowing you to travel every season.

    Specifications

    Length

    34 ft 11 in

    Dry weight

    12,108 lbs

    Sleeps

    4 people

    Slideouts

    3

    Specifications

    Length

    34 ft 11 in

    Dry weight

    12,108 lbs

    Sleeps

    4 people

    Slideouts

    3

    Unit features & options

    • Color-coded unified wiring standard
    • 4G LTE and Wi-Fi prep
    • Tuf-Lok thermoplastic duct joiners
    • KeyTV
    • In-floor heating ducts
    • Tru-fit slide construction
    • 12" I-Beam frame and 100" wide-body construction
    • Road Armor shock absorbing hitch pin
    • Hitch Vision w/ LED lighting
    • Laminated sidewalls w/ double-welded aluminum construction and double insulated, laminated rear-end wall
    • Large, tinted safety glass windows (80% tint)
    • Dual pane windows (optional)
    • 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 (18-year limited warranty)
    • Exterior ladder
    • Summit slide-rooms w/ 6'10" interior height and hydraulic selector valves for slide outs
    • Heated and enclosed underbelly w/ 1-piece polyproplylene
    • Dexter heavy duty 7,000 lb axles w/ Nev-R-Adjust brakes
    • Road Armor Shock Absorbing Suspension
    • Heavy duty G-rated Tires (6-year warranty)
    • One touch, 6-point hydraulic level up system
    • Super size, 6'4" tall, 30" wide entry door
    • Strut assisted SolidStep by Lippert Components

    Unit features & options

    • Color-coded unified wiring standard
    • 4G LTE and Wi-Fi prep
    • Tuf-Lok thermoplastic duct joiners
    • KeyTV
    • In-floor heating ducts
    • Tru-fit slide construction
    • 12" I-Beam frame and 100" wide-body construction
    • Road Armor shock absorbing hitch pin
    • Hitch Vision w/ LED lighting
    • Laminated sidewalls w/ double-welded aluminum construction and double insulated, laminated rear-end wall
    • Large, tinted safety glass windows (80% tint)
    • Dual pane windows (optional)
    • 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 (18-year limited warranty)
    • Exterior ladder
    • Summit slide-rooms w/ 6'10" interior height and hydraulic selector valves for slide outs
    • Heated and enclosed underbelly w/ 1-piece polyproplylene
    • Dexter heavy duty 7,000 lb axles w/ Nev-R-Adjust brakes
    • Road Armor Shock Absorbing Suspension
    • Heavy duty G-rated Tires (6-year warranty)
    • One touch, 6-point hydraulic level up system
    • Super size, 6'4" tall, 30" wide entry door
    • Strut assisted SolidStep by Lippert Components

    Full specifications

    As provided in the original listing

    AC BTU30000 btu
    Available BedsKing
    Awning Info11' and 16' Carefree with Adjustable Arms
    Axle Count2
    Axle Weight7000 lbs
    Black Water Capacity49 gals
    Cargo Capacity2892 lbs
    Convection CookingYes
    Cooktop Burners3
    Dry Weight12108 lbs
    Electrical Service50 amp
    Ext Height13 ft 4 in
    Ext Width8 ft 4 in
    Exterior ColorBIEGE
    Fresh Water Capacity54 gals
    Furnace BTU35000 btu
    Grey Water Capacity83 gals
    Hitch Weight2595 lbs
    LP Tank Capacity30 lbs
    Length34 ft 11 in
    Number of Awnings2
    Number of LP Tanks2
    Refrigerator Size18 cu ft
    Refrigerator TypeGas/Electric
    Shower TypeShower w/Seat
    Sleeps4
    Slides3
    TV InfoLR 50" LED TV
    Tire SizeST235/85R16G
    Washer/Dryer AvailableYes
    Water Heater TypeOn Demand

    Full specifications

    As provided in the original listing

    AC BTU30000 btu
    Available BedsKing
    Awning Info11' and 16' Carefree with Adjustable Arms
    Axle Count2
    Axle Weight7000 lbs
    Black Water Capacity49 gals
    Cargo Capacity2892 lbs
    Convection CookingYes
    Cooktop Burners3
    Dry Weight12108 lbs
    Electrical Service50 amp
    Ext Height13 ft 4 in
    Ext Width8 ft 4 in
    Exterior ColorBIEGE
    Fresh Water Capacity54 gals
    Furnace BTU35000 btu
    Grey Water Capacity83 gals
    Hitch Weight2595 lbs
    LP Tank Capacity30 lbs
    Length34 ft 11 in
    Number of Awnings2
    Number of LP Tanks2
    Refrigerator Size18 cu ft
    Refrigerator TypeGas/Electric
    Shower TypeShower w/Seat
    Sleeps4
    Slides3
    TV InfoLR 50" LED TV
    Tire SizeST235/85R16G
    Washer/Dryer AvailableYes
    Water Heater TypeOn Demand

    Price history

    Days listed

    8

    Price drops

    1

    Total price reduction

    -$1,000

    Sign in to see 1 price change

    Price history

    Days listed

    8

    Price drops

    1

    Total price reduction

    -$1,000

    Sign in to see 1 price change