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Newmar King Aire 4540

Class Abuilt 2026– (in production)Better build tierScarce on the used market
WHAT ONE COSTS
$1,717,100MSRP today

Still in production. A used 2023 would run roughly $1,013,100.

THE SPECS
Length44.9 ft
Height (incl. A/C)13.3 ft
Width8.5 ft
Interior height7.1 ft
GVWR54,000 lb
Dry weight49,950 lb
Cargo capacity4,050 lb
Sleeps7
Slide-outs3
Fresh water105 gal
Grey water80 gal
Black water60 gal
Air conditioning45,000 BTU
Fuel165 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
  • Rear king bed(Permanent)72×80
  • Bunks(Permanent)
  • Hide-a-bed sofa(Convertible)
  • Dinette(Convertible)
HOW IT'S BUILT: 4/5
WallsLaminated fiberglass
FrameSteel
RoofWalk-on
UnderbellyEnclosed

Newmar (Better tier): Newmar

YEAR BY YEAR: WHAT CHANGED
  • 2026Introduced as the line's first bunk floor plan
FINDING ONE

Scarce: months of watching; be ready to fly and drive it home. Why: only one model year; 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 only bunk plan ever offered in the King Aire — a million-dollar coach that sleeps seven.

OTHER KING AIRE FLOORPLANS
Find one for sale

Live listings for the 4540 on the big marketplaces. Each search opens pre-filled with this exact floorplan:

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

Is the 4540 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.