Class A
Newmar Essex 4578
Compare specs across all model years (2020–2023)
4
Model Years
9
Sleeps
44' 10"
Length
54,000
Avg GVWR
Our Recommendation
Which Year Should You Buy?
2020 Essex 4578
Best Choice
Highest Mint Score (30.1). Most powerful engine (605 HP).
What Changed Year-Over-Year
2021
2022
Capacity Change
Sleeping capacity changed from 10 to 8.
2020
2021
Capacity Upgrade
Sleeping capacity increased from 8 to 10 with layout improvements.
All Model Years
2023
2023 Newmar Essex 4578
29.1
54,000 lbs GVWR
44' 10"
Sleeps 8
605 HP
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2022
2022 Newmar Essex 4578
28.6
54,000 lbs GVWR
44' 10"
Sleeps 8
605 HP
↓ Sleeps 2 fewer than 2021
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2021
2021 Newmar Essex 4578
27.6
54,000 lbs GVWR
44' 10"
Sleeps 10
605 HP
↑ Sleeps 2 more than 2020
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Best Value
2020
2020 Newmar Essex 4578
30.1
54,000 lbs GVWR
44' 10"
Sleeps 8
605 HP
Original model year
View Full Specs
Tip: Click a year to see the full specs, tow guidance, and recommended gear for that model year.
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