New 2025 Sierra 3990FL Fifth Wheel

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Sierra 3990FL Description

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Sierra 3990FL Specifications

Sleeps 8
Slides 5
Length 43 ft 6 in
Ext Width 8 ft
Ext Height 13 ft 4 in
Hitch Weight 2825 lbs
GVWR 15375 lbs
Dry Weight 12439 lbs
Cargo Capacity 2936 lbs
Fresh Water Capacity 50 gals
Grey Water Capacity 80 gals
Black Water Capacity 50 gals
Tire Size 16"
Furnace BTU 40000 btu
Available Beds King
Refrigerator Type 12V
Refrigerator Size 17 cu ft
Cooktop Burners 3
Number of Awnings 1
LP Tank Capacity 30 lbs
Water Heater Capacity 60000 gal
Water Heater Type On Demand Tankless
AC BTU 30000 btu
TV Info LR 50" Flat Screen TV
Awning Info 20' Electric w/LED Light Strip
Axle Count 2
Washer/Dryer Available Yes
Number of LP Tanks 2
Shower Type Shower w/Seat

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ManuFacts

Customer Satisfaction is Our #1 Priority.

 

At Forest River, Inc., your needs, interests, budget, and lifestyle are at the forefront of everything we do. This affects every step from design, to the manufacturing floor, and on to you, our Customer. Whatever your need—recreation, transportation, or cargo hauling—we strive to bring quality products within reach of everyone. It’s not just a slogan: “Customer Satisfaction is Our #1 Priority.”

 

In 1996, Forest River founder Peter Liegl had a vision. He foresaw an RV company dedicated to helping people experience the joy of the outdoors by building better recreational vehicles. After purchasing certain assets of Cobra Industries, the Company started manufacturing pop-up tent campers, travel trailers, fifth wheels and park models. Continually growing, Forest River now operates multiple manufacturing facilities throughout the United States producing Class A, B and C motorhomes, travel trailers, fifth wheels, toy haulers, pop-up tent campers, truck campers, park model trailers, destination trailers, cargo trailers, commercial vehicles, buses, pontoons, and mobile restroom trailers.

 

Our large production capacity enables us to fill our customers' orders promptly without cutting corners or rushing through production procedures. This ensures that each Forest River product is conscientiously built and undergoes thorough, detailed inspection before it's shipped to the customer. This guarantees that every family who desires quality recreation will find a Forest River product that serves their needs, interests, budget, and lifestyle.