Used 2017 Forest River Sierra 378FB
Oklahoma City, OKFun Town RVDirections
About this RV
Stepping inside this Sierra 378FB fifth wheel by Forest River you will find triple slide outs, a rear living area, and a front bathroom with his/her sinks! To the left of the entrance there is a slide with a free-standing dinette and an entertainment center with a fireplace below the entertainment center. Along the opposite side of the fifth wheel the slide has a tri-fold hide-a-bed sofa, large pantry, three burner range, and refrigerator. In the middle of the kitchen you will find an island with a double kitchen sink. Along the rear wall there is a nice comfortable sofa. Before you step up the stairs there is a convenient half bath off of the kitchen. At the top of the stairs, you will immediately enter into the bedroom. There is a slide out with a queen bed or you can choose an optional king bed. Across from the bed there is a dresser with a TV box. In the front bathroom you will find a walk-in shower with seat, an area that has been prepped for a washer and a dryer, two sinks with double mirrors above the sinks, and a toilet. Along the front wall of the fifth wheel there is a large wardrobe with shelves.
Specifications as listed by the dealer
- Type
- Fifth wheel
- Condition
- Used
- Year
- 2017
- Make
- Forest River
- Model
- Sierra 378FB
- Stock number
- 220813A
- VIN
- 4X4FSEP24HJ043362
- Slide-outs
- 3
- Hitch weight
- 2,096 lb
- Sleeps
- 5
- Length
- 42 ft 7 in
- Ext Width
- 8 ft
- Ext Height
- 13 ft 2 in
- Int Height
- 7 ft
- GVWR
- 15,500 lbs
- Dry Weight
- 12,455 lbs
- Cargo Capacity
- 3,045 lbs
- Fresh Water Capacity
- 60 gals
- Grey Water Capacity
- 134 gals
- Black Water Capacity
- 52 gals
- Tire Size
- 16"
- Furnace BTU
- 35,000 btu
- Available Beds
- Queen
- Refrigerator Type
- Stainless
- Refrigerator Size
- 9 cu ft
- Cooktop Burners
- 3
- Number of Awnings
- 1
- Axle Weight
- 7,000 lbs
- LP Tank Capacity
- 30
- Water Heater Capacity
- 10 gal
- Water Heater Type
- DSI
- AC BTU
- 15,000 btu
- TV Info
- LR 40" LED TV, Ext. TV
- Awning Info
- 20'
- Axle Count
- 2
- Washer/Dryer Available
- Yes
- Number of LP Tanks
- 2
- Shower Type
- Shower w/Seat
Features
- Color match high gloss gel coated colored exterior fiberglass
- Painted two tone aerodynamic fiberglass front cap with improved turning radius
- Entrance door(s) with integrated night shade
- Docking station: easy winterization, hot and cold spray port, black tank flush, pull valves for tanks
- Enclosed and heated dump valves
- Large tinted windows with 80/20 UV prohibitor
- Hickory Springs® radius triple steps with 9" riser (no pinched fingers)
- Dometic® "One-Touch" electric awning with LED light strip
- Power front jacks with spring loaded snap pins
- 16" Radial tires (E-Rated)
- Automotive-style fender skirts
- Hitch light
- Exterior kitchen (per floorplan)
- Porch light with interior switch
- 30 lb double LP tanks with auto change over
- Roof ladder
- 2 LED lighted exterior speakers
- 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 with cable jacks and 110V outlet
- Two (2) spray ports with 25' hose (one on each side)
- Upgraded aluminum rims
- 7,000 lb axles
- Friction hinge entry door
- One Touch" Dometic® electric awning w/LED light strip
- 15" Radial tires-D Rated
- Exterior refrigerator (per floorplan)
- 30 lb. double LP tanks with auto change over
- 2 exterior speakers
- Unobstructed pass-through storage area
- 4,400 Lb. axles
- 84" interior height with 6' 4" slide heights
- Stainless steel appliances
- Beauflor® rustic wood plank linoleum
- Decorative backsplash
- Four color coordinated interiors (Mink, Merlot, Pebble, Beachwood)
- Soft close full-extension drawer glides
- Stone cast under mounted kitchen sink
- Washer/dryer prep
Questions about this 2017 Forest River Sierra 378FB
Is it still for sale?
Fun Town RV’s website listed it for sale on November 5, 2026. RV Shift checks dealers’ websites about once a day, so ask the dealer to be sure.
What does it take to tow it?
RV Finder’s estimate: it needs a vehicle rated to tow about 13,700 lb, with a fifth-wheel hitch. That is its 12,455 lb dry weight plus 1,200 lb for water and gear, rounded up to the next 100 lb. RV Finder shows whether it is within your vehicle’s published rating, from the maker’s own towing guide, and checks tongue weight and payload too. Confirm your numbers in your owner’s manual and on the sticker in the driver’s door jamb. Check it in RV Finder
How do I ask the dealer about it?
Use the Check availability form on this page. Your message comes to RV Shift and we pass it to Fun Town RV. You can also call Fun Town RV at (833) 386-8696.
Listing and photos: Fun Town RV. Details come from the dealership and can change; confirm them before you buy.