Fifth Wheel
Heartland Milestone 370flmb
Compare specs across all model years (2020–2025)
6
Model Years
10
Sleeps
44' 2"
Length
15,417
Avg GVWR
Our Recommendation
Which Year Should You Buy?
2022 Milestone 370flmb
Best Choice
Highest Mint Score (28.4).
What Changed Year-Over-Year
2024
2025
Weight Reduction
GVWR dropped from 15,500 to 15,000 lbs (500 lbs lighter), improving towability.
2020
2021
Length Increased
Length changed from 43' 1" to 44' 7".
All Model Years
2025
2025 Heartland Milestone 370flmb
24.9
15,000 lbs GVWR
2,900 lbs Hitch
44' 2"
Sleeps 10
↓ 500 lbs lighter than 2024
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Check Towing
2024
2024 Heartland Milestone 370flmb
26.4
15,500 lbs GVWR
2,675 lbs Hitch
44' 2"
Sleeps 10
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Check Towing
2023
2023 Heartland Milestone 370flmb
27.9
15,500 lbs GVWR
2,675 lbs Hitch
44' 2"
Sleeps 10
View Full Specs
Check Towing
Best Value
2022
2022 Heartland Milestone 370flmb
28.4
15,500 lbs GVWR
2,675 lbs Hitch
44' 7"
Sleeps 10
View Full Specs
Check Towing
2021
2021 Heartland Milestone 370flmb
27.9
15,500 lbs GVWR
2,675 lbs Hitch
44' 7"
Sleeps 10
View Full Specs
Check Towing
2020
2020 Heartland Milestone 370flmb
27.9
15,500 lbs GVWR
2,675 lbs Hitch
43' 1"
Sleeps 10
Original model year
View Full Specs
Check Towing
Can Your Vehicle Tow the Milestone 370flmb?
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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