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Class C

Newmar Supreme Aire 4509

Newmar Supreme Aire 4509

Compare specs across all model years (2023–2025)

3
Model Years
6
Sleeps
44' 11"
Length
56,000
Avg GVWR
Our Recommendation
Which Year Should You Buy?
2023 Supreme Aire 4509 Best Choice

Highest Mint Score (31.6). Best living space layout.

View 2023 Full Specs & Tow Guide →

What Changed Year-Over-Year

2023 2024

More Power

Horsepower changed from 505 to 525 HP.

All Model Years

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

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