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    1. Home
    2. Fifth wheel trailers
    3. Keystone
    4. Montana
    5. 3121RL
    Keystone Montana 3121RL exterior

    Keystone Montana 3121RL

    Rear living room, kitchen island, master closet

    • Rear living area
    • Front bedroom
    • Walk-in closet
    Browse inventory (31)
    Keystone Montana 3121RL floor plan
    Keystone Montana 3121RL floor plan

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    Find a Keystone Montana 3121RL

    See it in person or find a great deal nationwide.
    Browse inventory (31)

    Similar floor plans

    Fifth wheel trailers that share features with the Montana 3121RL, like front bedroom, fireplace and rear living area.

    Brinkley Model Z 2670 exterior

    Brinkley Model Z 2670

    MSRP$103,322

    23 units available

    Brinkley Model Z 2670 floor plan
    Max weight

    13,995 lbs

    Length

    29 ft 11 in

    Sleeps

    7

    Forest River Cherokee Black Label 245TRBL exterior

    Forest River Cherokee Black Label 245TRBL

    MSRP$68,370

    2 units available

    Forest River Cherokee Black Label 245TRBL floor plan
    Max weight

    9,985 lbs

    Length

    29 ft 10 in

    Sleeps

    6

    Highland Ridge Roamer Light Duty 244RLS exterior

    Highland Ridge Roamer Light Duty 244RLS

    Front bedroom, rear living area, bar seating

    MSRP$68,520

    3 units available

    Highland Ridge Roamer Light Duty 244RLS floor plan
    Max weight

    9,600 lbs

    Length

    28 ft 7 in

    Sleeps

    6

    Starcraft GSL Light Duty 244RLS exterior

    Starcraft GSL Light Duty 244RLS

    Front bedroom, rear living area, bar seating

    MSRP$68,520
    Starcraft GSL Light Duty 244RLS floor plan
    Max weight

    9,500 lbs

    Length

    28 ft 7 in

    Sleeps

    4

    Highland Ridge Silverstar Light Duty 244RLS exterior

    Highland Ridge Silverstar Light Duty 244RLS

    MSRP$71,475
    Highland Ridge Silverstar Light Duty 244RLS floor plan
    Max weight

    9,500 lbs

    Length

    28 ft 4 in

    Sleeps

    5

    Forest River Cherokee Black Label 235MBBL exterior

    Forest River Cherokee Black Label 235MBBL

    Rear kitchen, booth dinette, farmhouse sink

    MSRP$66,603

    5 units available

    Forest River Cherokee Black Label 235MBBL floor plan
    Max weight

    9,985 lbs

    Length

    29 ft 6 in

    Sleeps

    6

    Forest River Impression 235RW exterior

    Forest River Impression 235RW

    MSRP$67,325

    35 units available

    Forest River Impression 235RW floor plan
    Max weight

    11,570 lbs

    Length

    28 ft 11 in

    Sleeps

    2

    Keystone Arcadia Super Lite 248SLRE exterior

    Keystone Arcadia Super Lite 248SLRE

    MSRP$64,133

    3 units available

    Keystone Arcadia Super Lite 248SLRE floor plan
    Max weight

    10,000 lbs

    Length

    28 ft 11 in

    Sleeps

    4

    Other Montana floor plans

    Keystone Montana 3000RE

    MSRPTBD

    1 unit available

    Keystone Montana 3000RE floor plan
    Max weight

    16,000 lbs

    Length

    35 ft 5 in

    Sleeps

    5

    Keystone Montana 3100RL

    MSRPTBD

    157 units available

    Keystone Montana 3100RL floor plan
    Length

    35 ft 11 in

    Sleeps

    4

    Keystone Montana 3120

    MSRPTBD
    Keystone Montana 3120 floor plan
    Max weight

    16,350 lbs

    Length

    35 ft

    Sleeps

    4

    Keystone Montana 3120RL

    Rear living, kitchen island

    MSRPTBD

    14 units available

    Keystone Montana 3120RL floor plan

    RV Envy's expert take

    We like: Great TV viewing angle, Two awnings

    Consider: Limited bedroom storage

    Max weight

    16,000 lbs

    Length

    35 ft

    Sleeps

    4

    Keystone Montana 3123RL

    Front bedroom, rear living area

    MSRP$116,693

    53 units available

    Keystone Montana 3123RL floor plan

    RV Envy's expert take

    Consider: Limited bathroom counter space

    Max weight

    16,350 lbs

    Length

    35 ft 1 in

    Sleeps

    4

    Keystone Montana 3130RE

    MSRPTBD

    7 units available

    Keystone Montana 3130RE floor plan
    Max weight

    16,353 lbs

    Length

    35 ft 2 in

    Sleeps

    4

    Keystone Montana 3160RL

    MSRPTBD

    15 units available

    Keystone Montana 3160RL floor plan
    Max weight

    16,000 lbs

    Length

    35 ft 6 in

    Sleeps

    5

    Keystone Montana 3230CK

    MSRP$96,008

    4 units available

    Keystone Montana 3230CK floor plan
    Max weight

    16,680 lbs

    Length

    37 ft 5 in

    Sleeps

    6

    Keystone Montana 3231CK

    Front bedroom, rear living area, dual vanity

    MSRP$121,013

    58 units available

    Keystone Montana 3231CK floor plan

    RV Envy's expert take

    We like: Bathroom accessible with slides in, Peninsula extending countertop, Good bathroom countertop space

    Consider: Limited bathroom storage, Fragile pendant lights, Very limited living area storage

    Max weight

    16,680 lbs

    Length

    37 ft 5 in

    Sleeps

    4

    Keystone Montana 3440RL

    MSRPTBD

    3 units available

    Keystone Montana 3440RL floor plan
    Max weight

    16,735 lbs

    Length

    39 ft 2 in

    Sleeps

    3

    View all Montana floor plans →
    Keystone Montana 3121RL overview

    Rear living room, kitchen island, master closet

    • Rear living area
    • Front bedroom
    • Walk-in closet
    Keystone Montana 3121RL exterior

    Key facts

    Length
    35 ft
    Max weight
    16,350 lbs
    Sleeps
    4

    Specs

    Dimensions

    Length
    35 ft
    Height
    13 ft 4 in
    Width
    8 ft
    Slideouts
    3
    Axles
    2

    Tanks & capacities

    Fresh water

    Key facts

    Length
    35 ft
    Max weight
    16,350 lbs
    Sleeps
    4

    AI summary

    The rear living layout keeps the bedroom tucked away at the front for real privacy, anchored by a King bed, walk-in closet, and thoughtful touches like elevated CPAP shelves, USB and 110V outlets bedside, and adjustable reading lights. The kitchen island gives you actual prep and gathering space, and the 5,000 BTU decorative fireplace makes the living area feel genuinely cozy rather than just functional. Full-timers consistently praise this floor plan for its carry capacity and livability. One owner reports no regrets after a year on the road, and the stackable washer/dryer prep, central vacuum, and Four Season Living Package with in-floor heating ducts back that up. SolarFlex 200 comes standard, with upgrade paths all the way to the 1200i-L for serious off-grid capability.

    RV Envy's expert take

    We like...
    • Ceiling fan
    • Walk-in closet
    Things to consider...
    • Limited counter space
    • Fragile pendant lights
    • Limited bedroom airflow
    • Limited kitchen cabinets
    66 gal
    Gray water
    88 gal
    Black water
    49 gal

    Weight & towing

    Dry weight
    12,367 lbs
    GVWR
    16,350 lbs
    Hitch weight
    2,350 lbs
    3/4 ton truck required
    New Ford F-250, RAM 2500, Sierra 2500, or bigger

    Based on overall weight and weight directly on tow vehicle's hitch and a new model tow vehicle. Please consult with a professional.

    Accommodations

    Sleeps
    4
    Download brochure

    Available years

    20232022202120192018
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