New 2026 Forest River RV Sandpiper 3900HBLR Fifth Wheel

Virtual Tour
2026 3900HBLR Features and Options

Forest River Sandpiper 3900HBLR Fifth Wheel

The Forest River Sandpiper 3900HBLR delivers residential luxury and thoughtful design for extended stays or full-time RV living. With a spacious rear living room, bath and a half layout, and premium finishes throughout, this fifth wheel offers comfort without compromise.

Key Highlights

  • King Bed Slide Out

  • L-Shaped Sofa with Chaise Lounge

  • Butler Pantry

  • Bath and a Half

 

Step inside to a wide-open rear living area designed for relaxation and entertaining. The L-shaped sofa with chaise lounge pairs perfectly with the entertainment center and cozy fireplace, creating a true residential feel. A hidden pantry, desk with chair, and additional shelving provide convenient storage and workspace options.

 

The kitchen is both stylish and functional, featuring a beautiful island with a waterfall edge, overhead cabinetry, 3 burner cooktop/oven combo, microwave, and 12V refrigerator. The butler pantry adds extra storage for kitchen essentials, keeping your main cooking space clean and organized. Just off the living area, the convenient bath and a half includes washer and dryer prep, making longer stays even more practical.

 

The bedroom retreat offers a king bed slide out, along with a small dresser and a tall dresser with TV hookup. The adjoining walk-in bathroom closet features a one-piece fiberglass shower, dual sinks, medicine cabinet, linen closet, and multiple shelves for organized storage. Outside, two awnings — one 12’ and one 18’ — provide generous shaded outdoor living space.


Sandpiper Construction Highlights
Sandpiper fifth wheels are built to deliver the perfect balance of size, space, and luxury, featuring:

  • Cambered powder coated frame with rust prohibitor

  • Fully enclosed underbelly for protection against the elements

  • Power front jacks with spring-loaded pins

  • Large tinted windows with 80/20 UV prohibitors

  • 60k BTU on-demand water heater

  • Porcelain foot flush toilet(s)

  • Tire pressure monitor system

  • Electric leveling system

  • Stainless steel kitchen package

  • Solid surface kitchen countertops

  • Beachside Sundance Congoleum linoleum

  • Recessed residential lighting


At The Great Outdoors RV Company in Greeley, Colorado, we proudly offer luxury fifth wheels like the Sandpiper 3900HBLR because they provide residential comfort, premium construction, and long-term value. As a family-owned dealership serving Northern Colorado and beyond, we carefully select models designed to elevate your camping experience for years to come.

What Our Customers Are Saying

Great Service!

Our propane stopped working while on a trip from Kansas City to Alaska. I stopped at Eastside and they were very helpful. A Tech even took time to help me make sure I did need a new regulator. We were able to make the repair and get back on the road. - Mark
Price: $102,418
You Save: $14,423
Sale Price: $87,995
The Great Outdoors RV Co.
Location: Greeley, CO
Stock# 3624


2026 3900HBLR Specifications
Sleeps 3
Slides 3
Length 42 ft 9 in
Ext Width 8 ft
Ext Height 13 ft 4 in
Int Height 7 ft
Hitch Weight 2085 lbs
GVWR 16085 lbs
Dry Weight 13284 lbs
Cargo Capacity 2801 lbs
Fresh Water Capacity 50 gals
Grey Water Capacity 136 gals
Black Water Capacity 104 gals
Furnace BTU 40000 btu
Available Beds King
Refrigerator Type 12V
Refrigerator Size 16 cu ft
Cooktop Burners 3
Number of Awnings 1
Axle Weight 7000 lbs
LP Tank Capacity 30 lbs
Water Heater Type On Demand Tankless
AC BTU 30000 btu
TV Info LR 50" Flat Screen Smart TV
Awning Info 12' and 18' Electric with LED Light Strip
Axle Count 2
Washer/Dryer Available Yes
Number of LP Tanks 2
Shower Type Standard
Electrical Service 65 amp
VIN 4X4FSAR24TJ048804
For more information Contact Us
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