Rear window, loft, desk, bunk beds, bunkhouse
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2025 Forest River Sierra 4003MB
UsedStock #2732687
Listing price
2025 Sierra 4003MB
Other floor plans with a similar body style, feature mix, and price range, prioritizing other manufacturers and brands.
Length
42 ft 9 in
Dry weight
12,609 lbs
Sleeps
3
Slideouts
4
What sets the 4003MB apart from most bunkhouse fifth wheels is its rear living area anchored by a rear window, putting the couch and TV at the scenic end of the rig while bunk beds and a loft stay tucked in the middle. The front bedroom earns its keep with a King bed, east/west orientation, and a washer/dryer prep. Details that lean hard into full-time or extended-trip living. A kitchen island with solid surface countertops, a farmhouse sink, and a hidden pantry give the cook's space a residential feel, and the outdoor kitchen means meal prep doesn't have to stay inside. Forest River's Sierra line backs it all up with 7,000 lb. axles with ABS, four-point electric leveling, and a 200W solar panel already on the roof.
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There may be room for price negotiation.
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Camping World
Lincoln, NE
Sells faster than 0% of US RV dealers
Compared with 1,318 dealers nationwide
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