Skip to main contentSkip to navigation
RV Envy
RV floor plans
Inventory
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
  • Dealers
  • Shopping tips

Company

  • About
  • Our story
  • Contact

For dealers

  • Dealer websites & CRM
  • Dealer 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. Fifth wheel trailers
    3. Forest River
    4. Sierra
    Forest River Sierra 4002FB exterior

    Forest River Sierra 4002FB

    Bathroom with entry door, two bedrooms, loft, two full baths, desk

    • Rear bath
    • Front bedroom
    • Loft
    • Two full baths
    • Desk
    • Two bedrooms
    • Bathroom with entry door
    Browse inventory (46)

    Find a Forest River Sierra 4002FB

    See it in person or find a great deal nationwide.
    Browse inventory (46)

    Similar floor plans

    Fifth wheel trailers that share features with the Sierra 4002FB, like front bedroom, kitchen island and washer dryer prep.

    Grand Design Solitude 310GK exterior

    Grand Design Solitude 310GK

    Front bedroom, rear living area

    MSRP$141,620

    250 units available

    Grand Design Solitude 310GK floor plan

    RV Envy's expert take

    We like: Large bedroom window, Pull-out trash cans, Large bedroom closet

    Consider: Limited pantry space, Fragile pendant lights, Limited bathroon storage

    Max weight

    19,000 lbs

    Length

    34 ft 4 in

    Sleeps

    4

    Keystone Montana High Country 295RL exterior

    Keystone Montana High Country 295RL

    Front bedroom, rear living area, walk-thru bath

    MSRP$91,515

    79 units available

    Keystone Montana High Country 295RL floor plan

    RV Envy's expert take

    Consider: Limited pantry space

    Max weight

    15,300 lbs

    Length

    34 ft

    Sleeps

    6

    Keystone Cougar 290RLS exterior

    Keystone Cougar 290RLS

    Front bedroom, rear living area, booth dinette

    MSRP$80,670

    60 units available

    Keystone Cougar 290RLS floor plan
    Max weight

    12,900 lbs

    Length

    33 ft 8 in

    Sleeps

    6

    K-Z Durango D301RLT exterior

    K-Z Durango D301RLT

    MSRP$115,132

    1 unit available

    K-Z Durango D301RLT floor plan
    Max weight

    12,995 lbs

    Length

    34 ft 3 in

    Sleeps

    4

    Jayco Eagle 30.5RSOK exterior

    Jayco Eagle 30.5RSOK

    MSRP$95,117

    1 unit available

    Jayco Eagle 30.5RSOK floor plan
    Max weight

    14,000 lbs

    Length

    33 ft 10 in

    Sleeps

    4

    Highland Ridge Roamer Light Duty 304BHS exterior

    Highland Ridge Roamer Light Duty 304BHS

    Front bedroom, loft, mid bunk, mid office

    MSRP$75,915
    Highland Ridge Roamer Light Duty 304BHS floor plan
    Max weight

    10,600 lbs

    Length

    33 ft 7 in

    Sleeps

    7

    Alliance RV Avenue 33RKS exterior

    Alliance RV Avenue 33RKS

    Front bedroom, rear kitchen

    MSRP$99,490

    16 units available

    Alliance RV Avenue 33RKS floor plan
    Max weight

    13,995 lbs

    Length

    34 ft 5 in

    Sleeps

    4

    Highland Ridge Mesa Ridge 284RLS exterior

    Highland Ridge Mesa Ridge 284RLS

    MSRP$103,568

    1 unit available

    Highland Ridge Mesa Ridge 284RLS floor plan
    Max weight

    12,500 lbs

    Length

    34 ft 4 in

    Sleeps

    6

    Other Sierra floor plans

    Forest River Sierra 2990TRIK

    MSRP$55,724
    Forest River Sierra 2990TRIK floor plan
    Max weight

    9,729 lbs

    Length

    32 ft 10 in

    Sleeps

    4

    Forest River Sierra 321RL

    MSRPTBD

    3 units available

    Forest River Sierra 321RL floor plan
    Max weight

    10,669 lbs

    Length

    35 ft

    Sleeps

    4

    Forest River Sierra 3330BH

    MSRP$81,692

    1 unit available

    Forest River Sierra 3330BH floor plan

    RV Envy's expert take

    We like: Separate bunkhouse with bathroom, Two full bathrooms, Booth dinette, Bathroom accessible with slides in, Bathroom accessible from hall and master bedroom, Direct access to bathroom from outside

    Consider: Tight bathrooms, Minimal storage

    Max weight

    13,769 lbs

    Length

    38 ft 3 in

    Sleeps

    10

    Forest River Sierra 3370RLS

    Rear window

    MSRPTBD

    6 units available

    Forest River Sierra 3370RLS floor plan
    Max weight

    13,560 lbs

    Length

    36 ft 4 in

    Sleeps

    4

    Forest River Sierra 33RLIK

    MSRPTBD

    1 unit available

    Forest River Sierra 33RLIK floor plan
    Max weight

    15,500 lbs

    Length

    35 ft 7 in

    Sleeps

    6

    Forest River Sierra 343RSOK

    MSRPTBD
    Forest River Sierra 343RSOK floor plan
    Max weight

    15,500 lbs

    Length

    34 ft 8 in

    Sleeps

    6

    Forest River Sierra 3440BH

    MSRP$83,532

    1 unit available

    Forest River Sierra 3440BH floor plan
    Max weight

    14,075 lbs

    Length

    40 ft 5 in

    Sleeps

    6

    Forest River Sierra 345RLOK

    MSRPTBD
    Forest River Sierra 345RLOK floor plan
    Max weight

    15,500 lbs

    Length

    35 ft 3 in

    Sleeps

    6

    Forest River Sierra 354RET

    MSRPTBD
    Forest River Sierra 354RET floor plan
    Max weight

    15,500 lbs

    Length

    34 ft 11 in

    Sleeps

    6

    Forest River Sierra 3550BH

    Bath and a half, bunkhouse, loft, two bedrooms, bathroom with entry door

    MSRPTBD

    2 units available

    Forest River Sierra 3550BH floor plan
    Max weight

    15,500 lbs

    Length

    43 ft 6 in

    Sleeps

    8

    View all Sierra floor plans →
    Forest River Sierra 4002FB overview
    • Rear bath
    • Front bedroom
    • Loft
    • Two full baths
    • Desk
    • Two bedrooms
    • Bathroom with entry door
    Forest River Sierra 4002FB exterior

    Key facts

    Length
    43 ft 5 in
    Max weight
    15,500 lbs
    Sleeps
    6

    Specs

    Dimensions

    Forest River Sierra 4002FB floor plan
    Forest River Sierra 4002FB floor plan

    Key facts

    Length
    43 ft 5 in
    Max weight
    15,500 lbs
    Sleeps
    6

    AI summary

    Four slides open up a floor plan that genuinely earns its square footage — a front bedroom with east/west bed orientation and a loft above, a second bedroom toward the rear, and two full baths including one with a dedicated entry door and bathtub. The kitchen is a real highlight: solid surface countertops, a stainless undermount sink, a center island, and a hidden pantry that keeps things tidy, plus a full outdoor kitchen when you want to move the party outside. A desk makes remote work practical, and washer/dryer prep means you can set it up for long hauls or full-timing without major retrofitting. Owners consistently call out the towing balance and storage as standouts, and Forest River has a reputation for working through any warranty issues that come up at delivery.

    Length
    43 ft 5 in
    Height
    13 ft 4 in
    Width
    8 ft
    Slideouts
    4
    Axles
    2

    Tanks & capacities

    Fresh water
    50 gal
    Gray water
    100 gal
    Black water
    100 gal

    Weight & towing

    Dry weight
    12,889 lbs
    GVWR
    15,500 lbs
    Hitch weight
    2,340 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
    6
    Download brochure

    Available years

    2026202520242023
    On this page...