Newmar Essex 4583

Name: Newmar Essex 4583
Brand: Newmar

Class Abuilt 2021–21Better build tierScarce on the used market

WHAT ONE COSTS

—price not published

The maker never published an MSRP for this floorplan. Unknown is not cheap — treat any asking price against comparable models, not against zero.

THE SPECS

Length44.8 ft

Height (incl. A/C)13.3 ft

Width8.5 ft

Interior height6.9 ft

GVWR54,000 lb

Dry weight47,000 lb

Cargo capacity7,000 lb

Sleeps4

Slide-outs3

Fresh water105 gal

Grey water80 gal

Black water60 gal

Air conditioning45,000 BTU

Fuel150 gal

Engine / chassisCummins X15 605 hp diesel pusher

GeneratorCummins Onan 12.5 kW diesel

A missing row means the maker never published that figure — unknown, not zero.

WHERE PEOPLE SLEEP

1× Rear king bed(Permanent)72×80
1× Hide-a-bed sofa(Convertible)—

HOW IT'S BUILT — 4/5

WallsLaminated fiberglass

FrameSteel

RoofWalk-on

UnderbellyEnclosed

Newmar (Better tier): Newmar

YEAR BY YEAR — WHAT CHANGED

2021Introduced
2022Discontinued

FINDING ONE

Scarce — months of watching; be ready to fly and drive it home. Why: only one model year. Estimated from build volume and production span — not a count of live listings.

THE READ

One-year-only 2021 plan.

OTHER ESSEX FLOORPLANS

4501 · 54,000 lb · sleeps 4 4503 · 54,000 lb · sleeps 4 4507 · 54,000 lb · sleeps 4 4513 · 54,000 lb · sleeps 4 4518 · 54,000 lb · sleeps 4 4519 · 54,000 lb · sleeps 4 4521 · 54,000 lb · sleeps 5 4531 · 54,000 lb · sleeps 4 4533 · 54,000 lb · sleeps 4 4534 · 54,000 lb · sleeps 4 4536 · 54,000 lb · sleeps 4 4537 · 54,000 lb · sleeps 4 4542 · 52,000 lb · sleeps 4 4543 · 54,000 lb · sleeps 4 the whole line →

Is the 4583 your #1 — or just a spec sheet?

These are the facts. Whether it beats the other six thousand rigs for you depends on what you care about — set your priorities as sliders and watch the whole market re-rank around them. Nothing gets hidden, everything gets explained.

Rank it against your setup →

Data compiled from manufacturer spec sheets, retrieved 2026-07.