Skip to Main Content Skip to Main Navigation Skip to Footer

Shop RVs
Browse All RVs for Sale Find RVs by Type Find RVs by Make Find RVs by State Find RVs by City Advanced RV Search Find My Dream RV Find Vintage RVs for Sale Find Consignment RVs for Sale
RENT AN RV
Browse Rentals Near Me Find Rentals by Location
View Specs
Find Dealers
Find Local Dealers Find Dealers by State
Research
RV Research RV Parts RV Service RV Tow Guide RV Loan Calculator RV Newcomers Guide RV Storage
Finance & Insurance

Financing & Insurance
RV Financing RV Insurance RV Extended Warranties
GET QUOTE
Financing Insurance Warranties Roadside Assistance Tire & Wheel Coverage Windshield Insurance
Lifestyle
Forums Campgrounds Shows & Events Clubs & Magazines
Resources

RESEARCH
RV Research RV Parts RV Service RV Tow Guide RV Loan Calculator RV Newcomers Guide RV Storage

FINANCING & INSURANCE
RV Financing RV Insurance RV Extended Warranties
GET QUOTE
Financing Insurance Warranties Roadside Assistance Tire & Wheel Coverage Windshield Insurance

LIFESTYLE
Forums Campgrounds Shows & Events Clubs & Magazines
Advertise
Sell My RV!
Login
- Dealer Login
- MyRVUSA

Skip to Filter Skip to Sorting and Pagination Skip to Item Listings

Your Search
Remove Selection

Make
Forest River34
- Model
- Sierra34

Type
Fifth Wheel34

Floorplan Layout
Two Entry/Exit Doors5
Kitchen Island4
Outdoor Kitchen4
Rear Bedroom4
Front Bedroom2
Front Entertainment2
Front Kitchen2
Rear Living Area2
Front Bath1
Front Living Area1
Mid Bunk1
Rear Bath1
Mid Kitchen1
Two Bedrooms1
Bunkhouse1
Mid Living Area1
Mid Bath1

Keyword

Year
To

Price
To

Length
To

Fuel Type
N/A34

# of Slideouts

Dry Weight
To

Hitch Weight
To

Mileage
To

Sleeping Capacity
To

State

Distance
of

Attributes
Units with Pictures
Units with Videos
Units with Price

Skip back up to listing page navigation

»
RVs for Sale »
Forest River »
Sierra

View Used Forest River Sierra RVs for Sale

34 listings match your search

Research Specs for Forest River Sierra

Any
Price High to Low
Make - A - Z
Make - Z - A
Year - Newest
Year - Oldest
Length - Short to Long
Length - Long to Short
Dry Weight - Light to Heavy
Dry Weight - Heavy to Light
Distance - Nearest
Distance - Farthest
Newly Listed

12
24
48
96

1
2

Call Dealer
Compare this RV with others

Used 2018 Forest River Sierra 378FB available in Ocala, Florida

Optimum RV - Ocala

Used 2018 Forest River Sierra 378FB

$46,878

~~$65,831~~

Ocala, FL (0 mi)

Call Dealer
Compare this RV with others

Used 2020 Forest River Sierra 379FLOK available in Tyler, Texas

Blue Compass RV Tyler

Used 2020 Forest River Sierra 379FLOK

$35,900

Tyler, TX (0 mi)

Call Dealer
Compare this RV with others

Used 2022 Forest River Sierra 391FLRB available in Tallahassee, Florida

Optimum RV - Tallahassee

Used 2022 Forest River Sierra 391FLRB

$52,998

~~$55,500~~

Tallahassee, FL (0 mi)

Call Dealer
Compare this RV with others

Used 2022 Forest River Sierra 38FKOK available in Benson, North Carolina

Blue Compass RV South Raleigh - Benson

Used 2022 Forest River Sierra 38FKOK

$59,995

Benson, NC (0 mi)

Call Dealer
Compare this RV with others

Used 2019 Forest River Sierra 387MKOK available in Ocala, Florida

Optimum RV - Ocala

Used 2019 Forest River Sierra 387MKOK

$33,878

~~$48,565~~

Ocala, FL (0 mi)

Call Dealer
Compare this RV with others

Used 2021 Forest River Sierra 38FKOK available in Lexington, South Carolina

Blue Compass RV Columbia - Lexington

Used 2021 Forest River Sierra 38FKOK

$54,900

Lexington, SC (0 mi)

Call Dealer
Compare this RV with others

Used 2022 Forest River Sierra 38FKOK available in Zephyrhills, Florida

Optimum RV - Zephyrhills

Used 2022 Forest River Sierra 38FKOK

$39,900

~~$79,995~~

Zephyrhills, FL (0 mi)

Call Dealer
Compare this RV with others

Used 2024 Forest River Sierra 3990FL available in Bonne Terre, Missouri

Optimum RV - Bonne Terre

Used 2024 Forest River Sierra 3990FL

$68,995

~~$101,127~~

Bonne Terre, MO (0 mi)

Call Dealer
Compare this RV with others

Used 2023 Forest River Sierra 3370RLS available in Tallahassee, Florida

Optimum RV - Tallahassee

Used 2023 Forest River Sierra 3370RLS

$49,873

Tallahassee, FL (0 mi)

Call Dealer
Compare this RV with others

Used 2021 Forest River Sierra 38FKOK available in Zephyrhills, Florida

Optimum RV - Zephyrhills

Used 2021 Forest River Sierra 38FKOK

$44,900

~~$65,995~~

Zephyrhills, FL (0 mi)

Call Dealer
Compare this RV with others

Used 2018 Forest River Sierra 384QBOK available in Zephyrhills, Florida

Optimum RV - Zephyrhills

Used 2018 Forest River Sierra 384QBOK

Zephyrhills, FL (0 mi)

Call Dealer
Compare this RV with others

Used 2024 Forest River Sierra 3370RLS available in Duncan, South Carolina

Blue Compass RV Spartanburg - Duncan

Used 2024 Forest River Sierra 3370RLS

$49,900

Duncan, SC (0 mi)

Call Dealer
Compare this RV with others

Used 2020 Forest River Sierra 384QBOK available in Newfield, New Jersey

Crossroads Trailer Sales, Inc. - Newfield

Used 2020 Forest River Sierra 384QBOK

$39,900

Newfield, NJ (0 mi)

Call Dealer
Compare this RV with others

Used 2024 Forest River Sierra 4003MB available in Depew, Oklahoma

Calvin Country RV - Depew

Used 2024 Forest River Sierra 4003MB

$79,995

Depew, OK (0 mi)

Call Dealer
Compare this RV with others

Used 2019 Forest River Sierra 378FB available in Aransas Pass, Texas

Pop RVs - Aransas Pass

Used 2019 Forest River Sierra 378FB

$40,000

Aransas Pass, TX (0 mi)

Call Dealer
Compare this RV with others

Used 2015 Forest River Sierra 360PDEK available in West Union, South Carolina

National Vehicle - West Union

Used 2015 Forest River Sierra 360PDEK

$22,000

West Union, SC (0 mi)

Call Dealer
Compare this RV with others

Used 2021 Forest River Sierra 391FLRB available in Williamsburg, Michigan

Pop RVs - Williamsburg

Used 2021 Forest River Sierra 391FLRB

$48,500

~~$66,000~~

Williamsburg, MI (0 mi)

Call Dealer
Compare this RV with others

Used 2024 Forest River Sierra 3550BH available in Ivyland, Pennsylvania

National Vehicle - Ivyland

Used 2024 Forest River Sierra 3550BH

$53,000

Ivyland, PA (0 mi)

Call Dealer
Compare this RV with others

Used 2024 Forest River Sierra 391FLRB available in Dummer, New Hampshire

Pop RVs - Dummer

Used 2024 Forest River Sierra 391FLRB

$83,400

Dummer, NH (0 mi)

Call Dealer
Compare this RV with others

Used 2020 Forest River Sierra 38FKOK available in West Columbia, South Carolina

Pop RVs - West Columbia

Used 2020 Forest River Sierra 38FKOK

$46,900

~~$55,900~~

West Columbia, SC (0 mi)

Call Dealer
Compare this RV with others

Used 2018 Forest River Sierra 38FKOK available in Brandenburg, Kentucky

Pop RVs - Brandenburg

Used 2018 Forest River Sierra 38FKOK

$38,900

Brandenburg, KY (0 mi)

Call Dealer
Compare this RV with others

Used 2018 Forest River Sierra 379FLOK available in Murray, Utah

Parris RV - Murray

Used 2018 Forest River Sierra 379FLOK

$39,995

Murray, UT (0 mi)

Call Dealer
Compare this RV with others

Used 2021 Forest River Sierra 384QBOK available in Pueblo, Colorado

Pop RVs - Pueblo

Used 2021 Forest River Sierra 384QBOK

$55,600

Pueblo, CO (0 mi)

Call Dealer
Compare this RV with others

Used 2025 Forest River Sierra 3800RK available in Rice, Texas

Rendel RV - Rice

Used 2025 Forest River Sierra 3800RK

$63,900

Rice, TX (0 mi)

Any
Price High to Low
Make - A - Z
Make - Z - A
Year - Newest
Year - Oldest
Length - Short to Long
Length - Long to Short
Dry Weight - Light to Heavy
Dry Weight - Heavy to Light
Distance - Nearest
Distance - Farthest
Newly Listed

12
24
48
96

1
2

Find your perfect Forest River Sierra rv for sale from the search results below. Contact a member to gain further information. Let our member network help you find your dream unit so you can further enjoy the rv lifestyle!

Top Sierra Units by State

California Florida Michigan South Carolina Texas Washington Louisiana Pennsylvania Alabama Colorado Indiana Kentucky

Research Specs for Forest River Sierra

Some text as placeholder. In real life you can have the elements you have chosen. Like, text, images, lists, etc.

About RVUSA

About RVUSA

About RVUSA
Testimonials
Advertise With Us
Contact RVUSA

Additional Info

Additional Info

Site Map
RSS
Affiliate Sites
Do Not Sell My Data

Contact Us

Contact Us

MyRVUSA Login
Dealer Login
Sell Your Unit
Privacy & Terms
Satisfaction Guarantee

Customer Service

© 1995-2026, RVUSA, a subsidiary of NetSource Media. All Rights Reserved.

Modal title

Modal body text goes here.