Newmar Essex 4551

Name: Newmar Essex 4551
Brand: Newmar
Price: 1113200 USD

Class Abuilt 2019– (in production)Better build tierPatient search on the used market

WHAT ONE COSTS

$1,113,200MSRP today

Still in production. A used 2023 would run roughly $656,800.

THE SPECS

Length44.8 ft

Height (incl. A/C)13.3 ft

Width8.5 ft

Interior height6.9 ft

GVWR54,000 lb

Dry weight46,500 lb

Cargo capacity7,500 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× 87 in. side 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

YEARS	GVWR	DRY	MSRP
2019	54,000 lb	47,300 lb	$1,113,150
2023–24	54,000 lb	47,200 lb	$1,113,150
2025	54,000 lb	47,100 lb	$1,063,500
2026–	54,000 lb	46,500 lb	$1,113,150

2019Introduced
2022Chassis moved from Spartan K3 to Freightliner
2026MSRP $1,113,150

FINDING ONE

Patient search: weeks of watching, and probably some travel. Why: 8-year production run; 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

The longest-running plan in the modern Essex — eight straight model years and still built.

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 →

Find one for sale

Live listings for the 4551 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 4551 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.