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Newmar Essex 4521

Class Abuilt 2023– (in production)Better build tierPatient search on the used market
WHAT ONE COSTS
$1,112,000MSRP today

Still in production. A used 2023 would run roughly $656,100.

THE SPECS
Length44.8 ft
Height (incl. A/C)13.3 ft
Width8.5 ft
Interior height6.9 ft
GVWR54,000 lb
Dry weight46,100 lb
Cargo capacity7,900 lb
Sleeps5
Slide-outs3
Fresh water105 gal
Grey water80 gal
Black water60 gal
Air conditioning45,000 BTU
Fuel150 gal
Engine / chassisCummins X15 605 hp diesel pusher · Freightliner tag-axle
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)—
  • 1× Dinette(Convertible)—
HOW IT'S BUILT: 4/5
WallsLaminated fiberglass
FrameSteel
RoofWalk-on
UnderbellyEnclosed

Newmar (Better tier): Newmar

YEAR BY YEAR: WHAT CHANGED
YEARSGVWRDRYMSRP
202354,000 lb47,600 lb$1,111,950
202454,000 lb47,200 lb$1,111,950
202554,000 lb46,700 lb$1,063,500
2026–54,000 lb46,100 lb$1,111,950
  • 2023Introduced
  • 2026UVW 46,100 lb, MSRP $1,111,950
FINDING ONE

Patient search: weeks of watching, and probably some travel. Why: still in production; priced at the top of its maker’s range. Estimated from build volume and production span, not a count of live listings.

OUR TAKE

Bath-and-a-half couples plan and the current entry point into the Essex.

OTHER ESSEX FLOORPLANS
4501 · 54,000 lb · sleeps 44503 · 54,000 lb · sleeps 44507 · 54,000 lb · sleeps 44513 · 54,000 lb · sleeps 44518 · 54,000 lb · sleeps 44519 · 54,000 lb · sleeps 44531 · 54,000 lb · sleeps 44533 · 54,000 lb · sleeps 44534 · 54,000 lb · sleeps 44536 · 54,000 lb · sleeps 44537 · 54,000 lb · sleeps 44542 · 52,000 lb · sleeps 44543 · 54,000 lb · sleeps 44544 · 54,000 lb · sleeps 4the whole line →
Find one for sale

Live listings for the 4521 on the big marketplaces. Each search opens pre-filled with this exact floorplan:

RV Trader ↗Camping World ↗FB Marketplace ↗Google ↗

Inventory varies by site and day. Slim pickings? search the whole Essex line ↗

Is the 4521 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, switch on your hard limits, and watch the whole market re-rank around them. Every exclusion explained, every margin shown.

See where it ranks for you →

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