New 2026 Forest River RV Sandpiper 3900HBLR
Quick Specifications
Can My Vehicle Tow This RV?
This RV has a GVWR of 16,085 lbs. Use our free towing guide to check your truck or SUV.
Forest River Sandpiper fifth wheel 3900HBLR highlights:
- King Bed Slide Out
- L-Shaped Sofa with Chaise Lounge
- Butler Pantry
- Bath and a Half
It will be easier than ever to enjoy camping trips in this triple slide out fifth wheel, or even go full-time! The combined kitchen and living area features dual opposing slides for ample space, an L-shaped sofa with a chaise lounge, and a fireplace with a hidden pantry behind for snacks! A desk with a chair and a USB port will provide a place to work if you need to send some emails, and the large kitchen island will give you ample room to prep dinner when you get hungry. There are also pendant lights here, along with a waterfall edge and barstools for dining space. The mid-coach half bath includes a toilet, sink, plus washer and dryer prep, giving you the option to make this the perfect laundry room! The master bedroom up front may be your favorite place to unwind in this unit. There is a king bed slide, a small dresser plus a tall dresser, and a TV hookup if you want the option to watch movies in bed. And you'll be wowed by the front master bedroom with its fiberglass shower with a seat, dual bath sinks, and large walk-in closet!
You will find the perfect balance of size, space, features, and luxury with any one of these Forest River Sandpiper fifth wheels! They are constructed with a welded aluminum framed vacuum bonded laminated superstructure, a cambered powder coated frame with rust prohibitor, and a fully enclosed underbelly for added protection against the elements. The large tinted windows come with a 80/20 UV prohibitor or you can choose the optional dual pane windows. Some hassle-free amenities include a 60k BTU on-demand water heater, full coach water filter system, tire pressure monitor system, and an electric leveling system! Inside, you'll enjoy stainless steel appliances, solid surface countertops, Beachside Sundance linoleum, recessed residential lighting, and many more comforts!
Key Highlights
Standard Features
Dimensions
- Overall Length
- 42' 9"
- Exterior Width
- 8'
- Exterior Height
- 13' 4"
Weights
- Dry Weight
- 13,284 lbs
- GVWR
- 16,085 lbs
- Hitch Weight
- 2,085 lbs
- Payload
- 2,801 lbs
Tank Capacities
- Fresh Water
- 50 gal
- Gray Water
- 136 gal
- Black Water
- 104 gal
Living Capacity
- Sleeps
- 4 People
- Slide Outs
- 3
- Awnings
- 1
Climate Systems
- Furnace
- 40,000 BTU
Appliances
- Refrigerator
- 12V Stainless
- Cooktop
- 3 Burner
- Washer/Dryer
- Full Unit
- Shower
- Walk-In Shower
Axles & Tires
- Axles
- 2
- Tire Size
- 16"
Additional Specifications
- Tv Info
- LR 50" Flat Screen TV
- Stock #
- CL048472
- Condition
- New
- Year
- 2026
- Manufacturer
- Forest River RV
- Brand
- Sandpiper
- Model
- 3900HBLR
- Category
- Recreational Vehicles
- Type
- Fifth Wheel
- VIN
- 4X4FSAR25TJ048472
- Location
- Calera, AL
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