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We do our best to keep listing details accurate, but pricing, specifications, and availability come from third-party sources and can change without notice. We can't guarantee accuracy, so please confirm the details with the dealer before making any decisions. See something inaccurate? Contact us.

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    1. Home
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    3. 2026 Forest River Sandpiper 3900HBLR

    2026 Forest River Sandpiper 3900HBLR

    NewFifth wheel|Stock #J048450|Located at RV Dynasty in Bunker Hill, IN
    $62,995$63,995
    Save $1,000
    RV Envy

    2026 Forest River Sandpiper 3900HBLR

    New · Fifth wheel

    $62,995$63,995Save $1,000

    RV Dynasty

    10001 S Us Highway 31

    Bunker Hill, IN 46914

    (855) 284-3486

    Stock #J048450

    2026 Forest River Sandpiper 3900HBLR floor plan

    Specifications

    Length42 ft 9 in
    Dry weight13,284 lbs
    Sleeps4 people
    Slideouts3

    Full specifications

    AC BTU30000 btu
    Available BedsKing
    Awning Info12' and 18' Electric with LED Light Strip
    Axle Count2
    Black Water Capacity104 gals
    Cargo Capacity2801 lbs
    Cooktop Burners3
    Dry Weight13284 lbs
    Ext Height13 ft 4 in
    Ext Width8 ft
    Fresh Water Capacity50 gals
    Furnace BTU40000 btu
    GVWR16085 lbs
    Grey Water Capacity136 gals
    Hitch Weight2085 lbs
    LP Tank Capacity30 lbs
    Length42 ft 9 in
    Number of Awnings1
    Number of LP Tanks2
    Refrigerator Type12V Stainless
    Shower TypeWalk-In Shower
    Sleeps4
    Slides3
    TV InfoLR 50" Flat Screen TV
    Tire Size16"
    Washer/Dryer AvailableYes
    Water Heater Capacity60000 gal
    Water Heater TypeOn Demand Tankless

    Options and equipment may differ from those listed. We do our best to ensure accuracy, but please confirm all details with the dealer before purchase.

    Get more info

    2026 Sandpiper 3900HBLR

    2026 Sandpiper 3900HBLR
    I'm interested in
    Preferred contact method
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    The dealer sees only your first name and general area, not your full name, email, or phone. You'll chat through RV Envy and can share your info anytime.

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    Dealer information

    RV Dynasty

    10001 S Us Highway 31
    Bunker Hill, IN 46914
    (855) 284-3486

    No Fees

    HIGHLAND INTERIOR!!!

    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!

    No Fees

    HIGHLAND INTERIOR!!!

    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!

    Specifications

    Length

    42 ft 9 in

    Dry weight

    13,284 lbs

    Sleeps

    4 people

    Slideouts

    3

    Specifications

    Length

    42 ft 9 in

    Dry weight

    13,284 lbs

    Sleeps

    4 people

    Slideouts

    3

    Unit features & options

    • Automatic Electric Level-Up System
    • 2" Towing and Accessory Hitch (Where Available)
    • 7,000lb axles with Anti-lock Braking System
    • Goodyear Radial Tires w/ anti-lock brakes
    • Lippert auto adjust brakes
    • Rich Solar 200W roof mounted solar panel with controller and battery
    • Quad MORryde step above with strut (Where Available)
    • Color matched high gloss gel coated colored exterior fiberglass
    • Painted two tone aerodynamic fiberglass front cap with improved turning radius
    • Underbelly Armor
    • Tire Pressure Monitoring System
    • Spare tire
    • Large, tinted windows with 80/20 UV prohibitor
    • Electric awning with LED light strip
    • Prepped for Lippert On-The-Go Ladder
    • Power front jacks with spring loaded pins
    • Automotive-style fender skirts
    • Hitch light
    • Porch light with interior switch
    • 30 lb. double LP tanks with auto change over
    • Rain gutters with extra long drip spouts (Prevents black streaking)
    • Insulated heavy duty slam lock baggage doors
    • Exterior foldable grab handle
    • Unobstructed pass through storage area

    Unit features & options

    • Automatic Electric Level-Up System
    • 2" Towing and Accessory Hitch (Where Available)
    • 7,000lb axles with Anti-lock Braking System
    • Goodyear Radial Tires w/ anti-lock brakes
    • Lippert auto adjust brakes
    • Rich Solar 200W roof mounted solar panel with controller and battery
    • Quad MORryde step above with strut (Where Available)
    • Color matched high gloss gel coated colored exterior fiberglass
    • Painted two tone aerodynamic fiberglass front cap with improved turning radius
    • Underbelly Armor
    • Tire Pressure Monitoring System
    • Spare tire
    • Large, tinted windows with 80/20 UV prohibitor
    • Electric awning with LED light strip
    • Prepped for Lippert On-The-Go Ladder
    • Power front jacks with spring loaded pins
    • Automotive-style fender skirts
    • Hitch light
    • Porch light with interior switch
    • 30 lb. double LP tanks with auto change over
    • Rain gutters with extra long drip spouts (Prevents black streaking)
    • Insulated heavy duty slam lock baggage doors
    • Exterior foldable grab handle
    • Unobstructed pass through storage area

    Full specifications

    As provided in the original listing

    AC BTU30000 btu
    Available BedsKing
    Awning Info12' and 18' Electric with LED Light Strip
    Axle Count2
    Black Water Capacity104 gals
    Cargo Capacity2801 lbs
    Cooktop Burners3
    Dry Weight13284 lbs
    Ext Height13 ft 4 in
    Ext Width8 ft
    Fresh Water Capacity50 gals
    Furnace BTU40000 btu
    GVWR16085 lbs
    Grey Water Capacity136 gals
    Hitch Weight2085 lbs
    LP Tank Capacity30 lbs
    Length42 ft 9 in
    Number of Awnings1
    Number of LP Tanks2
    Refrigerator Type12V Stainless
    Shower TypeWalk-In Shower
    Sleeps4
    Slides3
    TV InfoLR 50" Flat Screen TV
    Tire Size16"
    Washer/Dryer AvailableYes
    Water Heater Capacity60000 gal
    Water Heater TypeOn Demand Tankless

    Full specifications

    As provided in the original listing

    AC BTU30000 btu
    Available BedsKing
    Awning Info12' and 18' Electric with LED Light Strip
    Axle Count2
    Black Water Capacity104 gals
    Cargo Capacity2801 lbs
    Cooktop Burners3
    Dry Weight13284 lbs
    Ext Height13 ft 4 in
    Ext Width8 ft
    Fresh Water Capacity50 gals
    Furnace BTU40000 btu
    GVWR16085 lbs
    Grey Water Capacity136 gals
    Hitch Weight2085 lbs
    LP Tank Capacity30 lbs
    Length42 ft 9 in
    Number of Awnings1
    Number of LP Tanks2
    Refrigerator Type12V Stainless
    Shower TypeWalk-In Shower
    Sleeps4
    Slides3
    TV InfoLR 50" Flat Screen TV
    Tire Size16"
    Washer/Dryer AvailableYes
    Water Heater Capacity60000 gal
    Water Heater TypeOn Demand Tankless

    Price history

    Days listed

    362

    Price drops

    5

    Total price reduction

    -$10,000

    Sign in to see 5 price changes

    Price history

    Days listed

    362

    Price drops

    5

    Total price reduction

    -$10,000

    Sign in to see 5 price changes

    Get more info

    2026 Sandpiper 3900HBLR

    2026 Sandpiper 3900HBLR
    I'm interested in
    Preferred contact method
    EmailPhone callText message

    The dealer sees only your first name and general area, not your full name, email, or phone. You'll chat through RV Envy and can share your info anytime.

    We'll add you to our weekly newsletter too, but you can unsubscribe at anytime.