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SOLD! - Used 2021 Forest River Sierra C-Class 3770FL

  • Corpus Christi,TX
  • Stock # 9AR606
2021 Forest River Sierra C-Class 3770FL RV Photo 1
2021 Forest River Sierra C-Class 3770FL RV Floorplan Photo
2021 Forest River Sierra C-Class 3770FL RV Photo 3
2021 Forest River Sierra C-Class 3770FL RV Photo 2
2021 Forest River Sierra C-Class 3770FL RV Photo 4
  • Sleeps 6
  • 4 Slides
  • 11,554 lbs
  • Front Entertainment
  • Front Living
  • Rear Bedroom


2021 Forest River Sierra C-Class 3770FL Floorplan Photo


  • Front Entertainment
  • Front Living
  • Rear Bedroom

See us for a complete list of features and available options!

All standard features and specifications are subject to change.

All warranty info is typically reserved for new units and is subject to specific terms and conditions. See us for more details.


  • Sleeps 6
  • Slides 4
  • Ext Width 96
  • Ext Height 160
  • Hitch Weight 2,175
  • GVWR 14,175
  • Fresh Water Capacity 50
  • Grey Water Capacity 82
  • Black Water Capacity 52
  • Tire Size 16
  • Furnace BTU 35,000
  • Axle Count 2
  • Available Beds Queen
  • Refrigerator Size 10.7
  • Cooktop Burners 3
  • Shower Type Shower w/Seat
  • Number of Awnings 1
  • Dry Weight 11,554
  • Cargo Weight 2,621
  • Tire Size 16
  • TV Info LR 50"" Pop-Up Flat Screen TV
  • VIN 4X4FSEP20MJ049606


Forest River Sierra C-Class fifth wheel 3770FL highlights:

  • Front Cap with View
  • Front Living/Entertainment
  • 50" Pop-Up Flat Screen
  • Rear Bedroom
  • Four Slide Outs
  • Pass-Through Storage


Spacious, luxurious and beautiful are just a few adjectives you will be thinking each time you take this fifth wheel on the road.  The separate living area up front offers an entertainment center, a 50" pop-up flat screen TV with a fireplace below plus opposing slide outs with tri-fold hide-a-bed sofas, and theater seating near by. The grandkids will love sleeping here also.  The middle kitchen offers stainless steel appliances, a ceiling fan, a free standing dinette, and a pantry to make your famous meals to keep everyone fed.  And you can use the exterior bumper mount swivel gas grill to make a few items.  Everyone will have easy access to the full bathroom which includes a shoe box and a walk-in shower with a seat.  After you get cleaned up you can fall asleep on your own queen bed with plenty of storage for your clothing in the wardrobes and dresser. 


Any Sierra C-Class fifth wheel by Forest River is built with the best materials for the long haul giving you a solid foundation and include comfort and luxury throughout.  A few of the construction features include a welded aluminum-framed, vacuum bonded laminated superstructure, a full enclosed underbelly with Underbelly Armor, and a full walk-on roof.  The Signature package comes standard and provides a memory foam mattress, a premium sound bar with DVD and flat screen TV, plus outside there is a Docking station, slam lock baggage doors, and a color matched gelcoated fiberglass exterior.  Don't wait any longer, choose your favorite Sierra C-Class today! 

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