Fifth Wheel
Forest River RV Sierra 381rbok
Compare specs across all model years (2016–2019)
4
Model Years
8
Sleeps
41' 8"
Length
15,500
Avg GVWR
Our Recommendation
Which Year Should You Buy?
2018 Sierra 381rbok
Best Choice
Lightest GVWR (15,500 lbs) makes it towable by more vehicles. Highest Mint Score (28.4).
What Changed Year-Over-Year
2017
2018
More Compact
Length changed from 42' 6" to 41' 8".
All Model Years
2019
2019 Forest River RV Sierra 381rbok
27.9
15,500 lbs GVWR
2,519 lbs Hitch
41' 8"
Sleeps 8
View Full Specs
Check Towing
Best Value
2018
2018 Forest River RV Sierra 381rbok
28.4
15,500 lbs GVWR
2,519 lbs Hitch
41' 8"
Sleeps 8
View Full Specs
Check Towing
2017
2017 Forest River RV Sierra 381rbok
28.1
15,500 lbs GVWR
2,519 lbs Hitch
42' 6"
Sleeps 8
View Full Specs
Check Towing
2016
2016 Forest River RV Sierra 381rbok
27.9
15,500 lbs GVWR
2,519 lbs Hitch
42' 6"
Sleeps 8
Original model year
View Full Specs
Check Towing
Can Your Vehicle Tow the Sierra 381rbok?
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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