Fifth Wheel
Keystone RV Cougar 333mks
Compare specs across all model years (2013–2018)
6
Model Years
6
Sleeps
38' 1"
Length
12,127
Avg GVWR
Our Recommendation
Which Year Should You Buy?
2018 Cougar 333mks
Best Choice
Highest Mint Score (29.9). Most recent model year with latest updates.
What Changed Year-Over-Year
2017
2018
Weight Increase
GVWR increased from 12,090 to 12,380 lbs (290 lbs heavier).
2016
2017
Length Increased
Length changed from 36' 8" to 37' 8".
All Model Years
Best Value
2018
2018 Keystone RV Cougar 333mks
29.9
12,380 lbs GVWR
1,980 lbs Hitch
38' 1"
Sleeps 6
↑ 290 lbs heavier than 2017
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2017
2017 Keystone RV Cougar 333mks
29.1
12,090 lbs GVWR
1,980 lbs Hitch
37' 8"
Sleeps 6
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2016
2016 Keystone RV Cougar 333mks
29.4
12,090 lbs GVWR
1,690 lbs Hitch
36' 8"
Sleeps 6
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2015
2015 Keystone RV Cougar 333mks
29.1
12,090 lbs GVWR
1,690 lbs Hitch
36' 8"
Sleeps 6
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2014
2014 Keystone RV Cougar 333mks
29.6
12,055 lbs GVWR
1,655 lbs Hitch
36' 8"
Sleeps 6
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2013
2013 Keystone RV Cougar 333mks
29.6
12,055 lbs GVWR
1,655 lbs Hitch
36' 8"
Sleeps 6
Original model year
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Can Your Vehicle Tow the Cougar 333mks?
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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