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Stock Number: 054029F
Exterior Length: 43 ft 6 in
Sleeps: 8
Number of Slide Outs: 5
Condition: New
Exterior Color: White
Description: New 2025 Forest River RV Sierra 3990FL
Details: NO HIDDEN FEES!!! WE DO NOT CHARGE PDI OR FREIGHT FEES!!! LET US HELP YOU SAVE MONEY!!! Forest ...
Updated: Wednesday, September 02, 2026 09:46 AM
Location: Bryan, Texas
Seller: T&S RV & Sport - Bryan
Stock Number: 81646
Exterior Length: 43 ft 6 in
Sleeps: 8
Number of Slide Outs: 5
Condition: New
Number of Axles: Tandem
Description: New 2025 Forest River RV Sierra 3990FL
Details: Forest River Sierra fifth wheel 3990FL highlights: Full and Half Lofts King Bed Walk-In Shower ...
Updated: Tuesday, September 01, 2026 09:57 AM
Location: Chesapeake, Virginia
Seller: Camper Liquidators-Chesapeake
Stock Number: FSI205
Exterior Length: 43 ft 5 in
Condition: New
VIN: 4X4FSES22VJ055612
Description: 2027 Forest River Sierra 4002FB 2027 Forest River Sierra 4002FB is built for families and luxury travelers seeking a spacious fifth-wheel with prem...
Updated: Saturday, August 22, 2026 11:04 AM
Location: Murrieta, California
Seller: Giant RV-Murrieta
Stock Number: FSI201
Sleeps: 6
Number of Slide Outs: 4
Condition: New
VIN: 4X4FSES28TJ055479
Description: 2026 Forest River Sierra 4002FB The 2026 Forest River Sierra 4002FB is a large, residential-style fifth wheel designed for families or multi-group ...
Updated: Friday, August 14, 2026 11:03 AM
Location: Montclair, California
Seller: Giant RV-Montclair
Stock Number: FSI199
Exterior Length: 43 ft 5 in
Sleeps: 6
Condition: New
VIN: 4X4FSES23TJ055034
Description: 2026 Forest River Sierra 4002FB The 2026 Forest River Sierra 4002FB is a spacious and residential-style fifth wheel designed for families, guests, ...
Updated: Wednesday, August 26, 2026 07:04 PM
Location: Downey, California
Seller: Giant RV-Downey
Stock Number: 219246
Exterior Length: 43 ft 5 in
Sleeps: 6
Number of Slide Outs: 4
Condition: New
Exterior Color: BEIGE
Description: New 2026 Forest River RV Sierra 4002FB
Details: Forest River Sierra fifth wheel 4002FB highlights: Two Bedrooms Two Full Bathrooms Loft Kitchen I...
Updated: Thursday, September 03, 2026 07:53 AM
Location: Conroe, Texas
Seller: Fun Town RV-Conroe
Stock Number: T89501
Condition: New
VIN: 4X4FSES27TJ054680
Description: AI Generated Description The Forest River Sierra 4002FB stands out with a substantial GVWR of fifteen thousand five hundred pounds, paired with a d...
Updated: Thursday, September 03, 2026 08:35 AM
Location: Claremore, Oklahoma
Seller: Ron Hoover RV & Marine - Tulsa
Stock Number: 348071
Exterior Length: 3 ft 7 in
Sleeps: 6
Number of Slide Outs: 4
Condition: New
Exterior Width: 8 in
Description: NEW 2026 FOREST RIVER SIERRA 4002FB – 348071
**Forest River Sierra fifth wheel 4002FB highlights:**
- Two Bedrooms
- Two Full Bathrooms...
Updated: Monday, August 17, 2026 10:16 AM
Location: Mesa, Arizona
Seller: General RV Colorado
Stock Number: 93397
Exterior Length: 42 ft 9 in
Sleeps: 8
Number of Slide Outs: 4
Condition: New
Exterior Color: BEIGE
Description: New 2026 Forest River RV Sierra 4003MB
Details: Forest River Sierra fifth wheel 4003MB highlights: Kitchen Island Four Slides Pass-Through Storag...
Updated: Thursday, September 03, 2026 08:35 AM
Location: Texarkana, Texas
Seller: Ron Hoover RV & Marine - Texarkana
Stock Number: 91506
Exterior Length: 42 ft 9 in
Sleeps: 8
Number of Slide Outs: 4
Condition: New
Exterior Color: BEIGE
Description: New 2026 Forest River RV Sierra 4003MB
Details: Forest River Sierra fifth wheel 4003MB highlights: Kitchen Island Four Slides Pass-Through Storag...
Updated: Thursday, September 03, 2026 08:35 AM
Location: San Antonio, Texas
Seller: Ron Hoover RV & Marine - San Antonio
Stock Number: 84404
Exterior Length: 42 ft 9 in
Sleeps: 8
Number of Slide Outs: 4
Condition: New
Exterior Color: BEIGE
Description: New 2026 Forest River RV Sierra 4003MB
Details: Forest River Sierra fifth wheel 4003MB highlights: Kitchen Island Four Slides Shower with a Seat ...
Updated: Thursday, September 03, 2026 08:35 AM
Location: Slaton, Texas
Seller: Ron Hoover RV & Marine - Lubbock
Stock Number: 38984
Exterior Length: 43 ft 5 in
Sleeps: 6
Number of Slide Outs: 4
Condition: New
Number of Axles: Tandem
Description: New 2026 Forest River RV Sierra 4002FB
Details: The following is a list of Additional Options besides the Standard Features come with the unit are...
Updated: Wednesday, August 05, 2026 08:25 AM
Location: Turlock, California
Seller: Best RV Center
Stock Number: 50W110
Exterior Length: 43 ft
Sleeps: 6
Number of Slide Outs: 4
Condition: New
Exterior Color: GREY/WHITE
Description: SIERRA
(2026) These Typical Features, Vary by Model
Living SpacesPower Awning with LED Strip LightingMORryde Step Above Quad Entry StepFoldable Ent...
Updated: Monday, September 07, 2026 03:06 AM
Location: Sturgeon Bay, Wisconsin
Seller: Kunes RV of Door County
Stock Number: 220074
Exterior Length: 43 ft 5 in
Sleeps: 6
Number of Slide Outs: 4
Condition: New
Exterior Color: BEIGE
Description: New 2026 Forest River RV Sierra 4002FB
Details: Forest River Sierra fifth wheel 4002FB highlights: Two Bedrooms Two Full Bathrooms Loft Kitchen I...
Updated: Thursday, September 03, 2026 07:53 AM
Location: Anna, Illinois
Seller: Fun Town RV-Cleburne
Stock Number: 219232
Exterior Length: 43 ft 5 in
Sleeps: 6
Number of Slide Outs: 4
Condition: New
Exterior Color: BEIGE
Description: New 2026 Forest River RV Sierra 4002FB
Details: Forest River Sierra fifth wheel 4002FB highlights: Two Bedrooms Two Full Bathrooms Loft Kitchen I...
Updated: Thursday, September 03, 2026 07:53 AM
Location: Crystal River, Florida
Seller: Fun Town RV - Nature Coast
Stock Number: 214866
Exterior Length: 43 ft 5 in
Sleeps: 6
Number of Slide Outs: 4
Condition: New
Exterior Color: BEIGE
Description: New 2026 Forest River RV Sierra 4002FB
Details: Forest River Sierra fifth wheel 4002FB highlights: Two Bedrooms Two Full Bathrooms Loft Kitchen I...
Updated: Friday, September 04, 2026 06:03 PM
Location: Crystal River, Florida
Seller: Fun Town RV - Nature Coast
Stock Number: 220075
Exterior Length: 42 ft 9 in
Sleeps: 8
Number of Slide Outs: 4
Condition: New
Exterior Color: BEIGE
Description: New 2026 Forest River RV Sierra 4003MB
Details: Forest River Sierra fifth wheel 4003MB highlights: Kitchen Island Four Slides Pass-Through Storag...
Updated: Thursday, September 03, 2026 07:53 AM
Location: Conroe, Texas
Seller: Fun Town RV-Conroe
Stock Number: 220076
Exterior Length: 42 ft 9 in
Sleeps: 8
Number of Slide Outs: 4
Condition: New
Exterior Color: BEIGE
Description: New 2026 Forest River RV Sierra 4003MB
Details: Forest River Sierra fifth wheel 4003MB highlights: Kitchen Island Four Slides Pass-Through Storag...
Updated: Thursday, September 03, 2026 07:53 AM
Location: Edinburgh, Indiana
Seller: Fun Town RV - Indianapolis
Stock Number: 218183
Exterior Length: 43 ft 5 in
Sleeps: 6
Number of Slide Outs: 4
Condition: New
Exterior Color: BEIGE
Description: New 2026 Forest River RV Sierra 4002FB
Details: Forest River Sierra fifth wheel 4002FB highlights: Two Bedrooms Two Full Bathrooms Loft Kitchen I...
Updated: Thursday, September 03, 2026 07:53 AM
Location: Edinburgh, Indiana
Seller: Fun Town RV - Indianapolis
Stock Number: C1033
Exterior Length: 43 ft 5 in
Sleeps: 6
Number of Slide Outs: 4
Condition: New
Exterior Color: WHITE
Description: New 2026 Forest River RV Sierra 4002FB
Details: TAKE A VIDEO TOUR Forest River Sierra fifth wheel 4002FB highlights: Two Bedrooms Two Full Bath...
Updated: Friday, September 04, 2026 10:35 AM
Location: Clute, Texas
Seller: Camp EZ RV - Clute
Stock Number: 219247
Exterior Length: 43 ft 5 in
Sleeps: 6
Number of Slide Outs: 4
Condition: New
Exterior Color: BEIGE
Description: New 2026 Forest River RV Sierra 4002FB
Details: Forest River Sierra fifth wheel 4002FB highlights: Two Bedrooms Two Full Bathrooms Loft Kitchen I...
Updated: Thursday, September 03, 2026 07:53 AM
Location: Jackson, Michigan
Seller: Fun Town RV - Jackson
Stock Number: 9543
Exterior Length: 43 ft 5 in
Sleeps: 6
Number of Slide Outs: 4
Condition: New
Exterior Color: White
Description: Introducing the 2026 Forest River RV Sierra 4002FB, a new fifth-wheel designed for adventure and comfort. With a spacious layout that comfortably s...
Updated: Thursday, September 03, 2026 06:08 AM
Location: Wabash, Indiana
Seller: Zoomers RV
Stock Number: 50W109
Exterior Length: 42 ft
Sleeps: 8
Number of Slide Outs: 4
Condition: New
Exterior Color: GREY/WHITE
Description: SIERRA
(2026) These Typical Features, Vary by Model
Living SpacesPower Awning with LED Strip LightingMORryde Step Above Quad Entry StepFoldable Ent...
Updated: Monday, September 07, 2026 03:06 AM
Location: Sturgeon Bay, Wisconsin
Seller: Kunes RV of Door County
Stock Number: N054832
Exterior Length: 42 ft 9 in
Condition: New
Exterior Color: WHITE
VIN: 4X4FSES24TJ054832
Description: Sales_pitch: The RV for sale is a New 2026 Sierra Fifth Wheel by Forest River RV that and much more. This Sierra 4003mb Fifth Wheel is...
Updated: Sunday, September 06, 2026 08:01 AM
Location: Ponchatoula, Louisiana
Seller: Berryland Campers - Ponchatoula
Stock Number: 9561
Exterior Length: 42 ft 9 in
Sleeps: 8
Number of Slide Outs: 4
Condition: New
Exterior Color: White
Description: Introducing the 2026 Forest River RV Sierra 4003MB, a fifth-wheel designed for families and adventure seekers alike. With a generous length of 42.7...
Updated: Thursday, September 03, 2026 06:09 AM
Location: Wabash, Indiana
Seller: Zoomers RV
