Toy Hauler
Grand Design RV Momentum 397th
Compare specs across all model years (2016–2025)
10
Model Years
8
Sleeps
44' 2"
Length
19,950
Avg GVWR
Our Recommendation
Which Year Should You Buy?
2021 Momentum 397th
Best Choice
Highest Mint Score (30.9).
What Changed Year-Over-Year
2024
2025
More Compact
Length changed from 45' 11" to 44' 2".
2023
2024
Length Increased
Length changed from 44' 2" to 45' 11".
2022
2023
Length Increased
Length changed from 43' 1" to 44' 2".
All Model Years
2025
2025 Grand Design RV Momentum 397th
28.4
20,000 lbs GVWR
3,375 lbs Hitch
44' 2"
Sleeps 9
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2024
2024 Grand Design RV Momentum 397th
27.1
20,000 lbs GVWR
3,570 lbs Hitch
45' 11"
Sleeps 9
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2023
2023 Grand Design RV Momentum 397th
26.9
20,000 lbs GVWR
3,570 lbs Hitch
44' 2"
Sleeps 9
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2022
2022 Grand Design RV Momentum 397th
28.4
20,000 lbs GVWR
3,375 lbs Hitch
43' 1"
Sleeps 9
↑ Sleeps 2 more than 2021
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Best Value
2021
2021 Grand Design RV Momentum 397th
30.9
20,000 lbs GVWR
3,375 lbs Hitch
43' 1"
Sleeps 7
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2020
2020 Grand Design RV Momentum 397th
30.4
20,000 lbs GVWR
3,375 lbs Hitch
44' 9"
Sleeps 7
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2019
2019 Grand Design RV Momentum 397th
30.9
20,000 lbs GVWR
3,375 lbs Hitch
43' 3"
Sleeps 7
↓ Sleeps 2 fewer than 2018
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2018
2018 Grand Design RV Momentum 397th
29.4
20,000 lbs GVWR
3,375 lbs Hitch
43' 3"
Sleeps 9
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2017
2017 Grand Design RV Momentum 397th
29.4
20,000 lbs GVWR
3,375 lbs Hitch
43' 3"
Sleeps 9
↑ 500 lbs heavier than 2016
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2016
2016 Grand Design RV Momentum 397th
30.1
19,500 lbs GVWR
3,400 lbs Hitch
43' 3"
Sleeps 9
Original model year
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Can Your Vehicle Tow the Momentum 397th?
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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