Fifth Wheel
Keystone RV Cougar 366rds
Compare specs across all model years (2018–2021)
4
Model Years
8
Sleeps
39' 4"
Length
13,995
Avg GVWR
Our Recommendation
Which Year Should You Buy?
2018 Cougar 366rds
Best Choice
Lightest GVWR (13,990 lbs) makes it towable by more vehicles. Highest Mint Score (31.1).
What Changed Year-Over-Year
2019
2020
More Compact
Length changed from 40' 1" to 39' 4".
All Model Years
2021
2021 Keystone RV Cougar 366rds
30.4
14,000 lbs GVWR
2,400 lbs Hitch
39' 4"
Sleeps 8
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2020
2020 Keystone RV Cougar 366rds
29.9
14,000 lbs GVWR
2,400 lbs Hitch
39' 4"
Sleeps 8
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Check Towing
2019
2019 Keystone RV Cougar 366rds
30.9
13,990 lbs GVWR
1,990 lbs Hitch
40' 1"
Sleeps 8
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Check Towing
Best Value
2018
2018 Keystone RV Cougar 366rds
31.1
13,990 lbs GVWR
1,990 lbs Hitch
40' 1"
Sleeps 8
Original model year
View Full Specs
Check Towing
Can Your Vehicle Tow the Cougar 366rds?
Enter your truck specs to see if any of these model years fit your towing capacity—and which year gives you the most safety margin.
Tip: Click a year to see the full specs, tow guidance, and recommended gear for that model year.
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