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Toy Hauler

Grand Design RV Momentum M-Class 351ms

Grand Design RV Momentum M-Class 351ms

Compare specs across all model years (2022–2025)

4
Model Years
7
Sleeps
40' 6"
Length
17,150
Avg GVWR
Our Recommendation
Which Year Should You Buy?
2022 Momentum M-Class 351ms Best Choice

Lightest GVWR (16,800 lbs) makes it towable by more vehicles. Highest Mint Score (30.6).

View 2022 Full Specs & Tow Guide →

What Changed Year-Over-Year

2024 2025

Weight Increase

GVWR increased from 17,000 to 18,000 lbs (1,000 lbs heavier).

2023 2024

Weight Increase

GVWR increased from 16,800 to 17,000 lbs (200 lbs heavier).

2022 2023

Tank Capacity Change

Fresh water capacity changed from 155 to 140 gallons.

All Model Years

Can Your Vehicle Tow the Momentum M-Class 351ms?

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.

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Tip: Click a year to see the full specs, tow guidance, and recommended gear for that model year.

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