Fifth Wheel
Keystone RV Montana 3720rl
Compare specs across all model years (2015–2020)
6
Model Years
5
Sleeps
39' 7"
Length
16,772
Avg GVWR
Our Recommendation
Which Year Should You Buy?
2018 Montana 3720rl
Best Choice
Highest Mint Score (31.9).
What Changed Year-Over-Year
2017
2018
Capacity Change
Sleeping capacity changed from 6 to 4.
All Model Years
2020
2020 Keystone RV Montana 3720rl
31.6
16,750 lbs GVWR
2,765 lbs Hitch
39' 7"
Sleeps 4
View Full Specs
Check Towing
2019
2019 Keystone RV Montana 3720rl
31.4
16,800 lbs GVWR
2,810 lbs Hitch
39' 7"
Sleeps 4
View Full Specs
Check Towing
Best Value
2018
2018 Keystone RV Montana 3720rl
31.9
16,810 lbs GVWR
2,810 lbs Hitch
39' 7"
Sleeps 4
↓ Sleeps 2 fewer than 2017
View Full Specs
Check Towing
2017
2017 Keystone RV Montana 3720rl
30.9
16,810 lbs GVWR
2,810 lbs Hitch
39' 7"
Sleeps 6
View Full Specs
Check Towing
2016
2016 Keystone RV Montana 3720rl
30.4
16,730 lbs GVWR
2,730 lbs Hitch
39' 7"
Sleeps 6
View Full Specs
Check Towing
2015
2015 Keystone RV Montana 3720rl
29.4
16,730 lbs GVWR
2,730 lbs Hitch
39' 7"
Sleeps 6
Original model year
View Full Specs
Check Towing
Can Your Vehicle Tow the Montana 3720rl?
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.

Leave the Noise Behind.
Reconnect Outdoors.
Our mission is to help people make well-informed RV buying decisions, so they can leave the noise and screens behind, reconnect with family, and create unforgettable memories in the great outdoors.
Free tools. No sales pressure. Just better decisions.