Newmar Essex 4542

Name: Newmar Essex 4542
Brand: Newmar

Class Abuilt 2012–13Better build tierScarce on the used market

WHAT ONE COSTS

$335,600est. used (2013, 13 yr old)

Sticker was $720,386 in 2013. Out of production since 2013, so the used market is the only way to buy one. Estimate assumes a 2013 unit.

THE SPECS

Length44.9 ft

Height (incl. A/C)12.9 ft

Width8.5 ft

Interior height7.0 ft

GVWR52,000 lb

Dry weight41,500 lb

Sleeps4

Slide-outs3

Fresh water105 gal

Grey water65 gal

Black water45 gal

Air conditioning45,000 BTU

Fuel150 gal

Engine / chassisCummins ISX 500 hp diesel pusher · Spartan K2

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

2012Introduced
2014Discontinued

FINDING ONE

Scarce: months of watching; be ready to fly and drive it home. Why: only 2 model years; 13 years out of 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

Early-2010s Essex on the Spartan K2 with a 52,000 lb rating.

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 4543 · 54,000 lb · sleeps 4 4544 · 54,000 lb · sleeps 4 the whole line →

Find one for sale

Live listings for the 4542 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 4542 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.