Fifth Wheel
Keystone RV Montana 3901rk
Compare specs across all model years (2023–2025)
3
Model Years
4
Sleeps
42' 4"
Length
17,200
Avg GVWR
Our Recommendation
Which Year Should You Buy?
2025 Montana 3901rk
Best Choice
Highest Mint Score (31.2). Most recent model year with latest updates.
What Changed Year-Over-Year
2024
2025
Weight Increase
GVWR increased from 16,800 to 18,000 lbs (1,200 lbs heavier).
All Model Years
Best Value
2025
2025 Keystone RV Montana 3901rk
31.2
18,000 lbs GVWR
2,975 lbs Hitch
42' 4"
Sleeps 4
↑ 1,200 lbs heavier than 2024
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2024
2024 Keystone RV Montana 3901rk
30.4
16,800 lbs GVWR
2,975 lbs Hitch
42' 4"
Sleeps 4
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2023
2023 Keystone RV Montana 3901rk
30.4
16,800 lbs GVWR
2,975 lbs Hitch
42' 4"
Sleeps 4
Original model year
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Can Your Vehicle Tow the Montana 3901rk?
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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