Used 2018 Keystone Cougar Half-Ton Series 21RBSWE

Beaverton, ORCurtis Trailers

Sleeps4
Length26' 3"
Dry weight5,380 lb
Slide-outs1

Questions about this 2018 Keystone Cougar Half-Ton Series 21RBSWE

What does it cost?

Curtis Trailers lists it at $17,994.

Is it new or used?

Used. It is a 2018 model.

Is it still for sale?

Curtis Trailers’s website listed it for sale on October 31, 2026. RV Shift checks dealers’ websites about once a day, so ask the dealer to be sure.

Where is it?

At Curtis Trailers in Beaverton, OR. See all 32 RVs Curtis Trailers lists on RV Shift.

How many people does it sleep?

The dealer lists it as sleeping 4.

How long is it?

26' 3", with 1 slide-out, as the dealer lists it.

How much does it weigh?

The dealer lists a dry weight (empty) of 5,380 lb and a hitch weight of 590 lb.

What does it take to tow it?

RV Finder’s estimate: it needs a vehicle rated to tow about 6,600 lb. That is its 5,380 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 Curtis Trailers.

About this RV

Many conveniences of home fit nicely in this Cougar 1/2 Ton series travel trailer by Keystone RV. This unit features a single slide for added space and sleeping for four. As you enter model 21RBSWE you will find a closet/pantry to the left of the door for convenient storage. Straight ahead there is a rear corner bath which provides a neo-angled shower, toilet, and sink. Prepare and cook food easily in the kitchen provided with counter space, a three burner range, double kitchen sink, and a refrigerator. Plus there is storage space available in the overhead cabinets for dishes, along with lower cupboards and drawers for larger items and silverware, plus more. The u-shaped dinette slide offers seating for everyone during mealtime besides opening up the foot traffic space from the back to the front while the slide is fully extended. It can also be quickly transformed into sleeping space for two at night if needed. You can choose optional theater seating for two in place of the dinette if you like. The front offers a space with a king size bed including overhead storage. There are also bedside wardrobes to keep things neat and tidy while you camp.

Specifications as listed by the dealer

Type
Travel trailer
Condition
Used
Year
2018
Make
Keystone
Model
Cougar Half-Ton Series 21RBSWE
Stock number
49353
VIN
4YDT21R20JC503316
Sleeps
4
Slides
1
Length
26 ft 3 in
Ext Width
8 ft
Ext Height
11 ft 1 in
Interior Color
Brown
Hitch Weight
590 lbs
Dry Weight
5,380 lbs
Cargo Capacity
1,820 lbs
Fresh Water Capacity
60 gals
Grey Water Capacity
76 gals
Black Water Capacity
38 gals
Tire Size
ST225/75R15D
Available Beds
King
Refrigerator Type
2 Door
Refrigerator Size
8 cu ft
Cooktop Burners
3
Number of Awnings
1
Water Heater Capacity
16.2 gal
Water Heater Type
Gas/Electric
AC BTU
15,000 btu
TV Info
LR LCD
Awning Info
Power
Axle Count
2
Shower Type
Neo-Angled

Features

  • Laminated Side Walls with 5 Sided Aluminum Superstructure
  • Full Size Spare Tire
  • Cabinet Doors with Residential Hardware
  • 15" Aluminum Wheels with 10 Ply “E” Rated Tires
  • LED Interior and Exterior Lighting
  • Friction Hinge Entry Door
  • 3/8" Walkable Roof Decking
  • Fiberglass Front Cap W/ Hitch Vision & LED Lights
  • Cougar Vintage Maple Glazed Hardwood
  • 12,000 BTU Rapid Recovery 6 Gallon Rapid Recovery Gas/Electric Water Heater
  • Battery Disconnect Switch
  • Easy Care Aluma-Tread Folding Triple Entry Step
  • 8 Cubic ft. Refrigerator
  • 21" Drop in Range w/ Piezo Ignition and Glass Stove Top Cover
  • Folding Exterior Bike/ Storage Rack with 225LB Capacity
  • Upgraded Road Armour Suspension Kit (Fifth Wheels)
  • Microwave
  • Foil Wrap Seamless Galley and Lavatory Counter tops
  • Gourmet Stainless Steel Under Mount Sink with Upgraded Chef's Faucet with Sprayer
  • Cougar Quick Camp Multifunction Remote (Fifth Wheels)
  • 15,000 BTU Ducted Air Conditioner
  • Dual 30LB LP Tanks
  • 35K BTU Ducted Furnace
  • 50 Amp Service, Pre-Wired and Braced for Ducted Bedroom Air Conditioner Option (Fifth Wheels)
  • Forced-Air Heated and Enclosed Underbelly
  • Enclosed Dump Valves
  • Astrofoil Insulated Slide Floors
  • Carbon monoxide detector
  • LP sensor
  • Manual backup on all main slide outs
  • Fire extinguisher
  • Smoke detector
  • Spare tire and Carrier
  • Electric Rear Stabilizing Jacks (Mandatory 22RBS)
  • Dual Pane Frameless Windows
  • Electric 4 Point Leveling System (Fifth Wheels)
  • Automatic Leveling System (Mandatory All Travel Trailer Models Except 22RBS)
  • 13.5 BTU Bedroom A/C (Ducted) With Thermostat (Fifth Wheels)
  • 13.5 BTU A/C (Bedroom, Non-Ducted) 50 Amp Required (Travel Trailers)
  • Free Standing Dinette and Chairs

Listing and photos: Curtis Trailers. Details come from the dealership and can change; confirm them before you buy.