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Condition: New
Exterior Length: 42 ft
Sleeps: 8
Number of Slide Outs: 4
Gross Vehicle Weight: 15,500 lb
Fresh Water Tank Capacity: 50 gal
Description: SIERRA
(2026) These Typical Features, Vary by Model
Living SpacesPower Patio Awning with LED Strip LightingMORryde Step Above Quad Entry StepFoldab...
Updated: Friday, October 23, 2026 11:08 am
Location: Baraboo, Wisconsin, USA
Seller: Kunes Scenic RV
Condition: New
Exterior Length: 36 ft 10 in
Sleeps: 8
Number of Slide Outs: 4
Gross Vehicle Weight: 15,500 lb
Stock Number: TJ055147
Description: FOREST RIVER SIERRA 4003MB (FIFTH WHEEL) SPECIFICATIONS: HITCH WEIGHT TBD GVWR TBD UVW TBD CCC TBD EXTERIOR LENGTH TBD EXTERIOR HEIGHT TBD EXTER...
Updated: Saturday, October 24, 2026 12:08 am
Location: Sweetwater, Texas, USA
Seller: Family RV Center - Sweetwater
Condition: New
Exterior Length: 42 ft 9 in
Sleeps: 8
Number of Slide Outs: 4
Number of Axles: Tandem
Fresh Water Tank Capacity: 50 gal
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: Friday, October 23, 2026 11:09 am
Location: Wabash, Indiana, USA
Seller: Zoomers RV
