CamperHardlyKnowHer

Newmar Mountain Aire 4360

Class Abuilt 2014–14Better 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
Length43.8 ft
Height (incl. A/C)12.8 ft
Width8.5 ft
Interior height7.0 ft
GVWR44,600 lb
Dry weight37,300 lb
Cargo capacity7,300 lb
Sleeps5
Fresh water105 gal
Grey water65 gal
Black water45 gal
Engine / chassisCummins ISL 450 hp diesel, Spartan tag axle, 288"+tag wheelbase

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

WHERE PEOPLE SLEEP
  • 1× master bedroom bed(Permanent)—
  • 1× convertible dinette(Convertible)—
  • 1× sofa sleeper(Convertible)—
HOW IT'S BUILT — 4/5
WallsLaminated fiberglass
FrameSteel
RoofWalk-on
UnderbellyEnclosed

Newmar (Better tier): Newmar Mountain Aire

YEAR BY YEAR — WHAT CHANGED
  • 2014Introduced
  • 2015Dropped when the line moved to the 53,000 lb chassis
FINDING ONE

Scarce — months of watching; be ready to fly and drive it home. Why: only one model year; 12 years out of production. Estimated from build volume and production span — not a count of live listings.

THE READ

From the lighter 44,600 lb ISL generation of Mountain Aire, before the 500 hp ISX era.

OTHER MOUNTAIN AIRE FLOORPLANS
3823 · 54,000 lb · sleeps 53825 · 54,000 lb · sleeps 44002 · 54,000 lb · sleeps 54018 · 54,000 lb · sleeps 54118 · 54,000 lb · sleeps 54361 · 44,600 lb · sleeps 54364 · 44,600 lb · sleeps 54369 · 44,600 lb · sleeps 54372 · 44,600 lb · sleeps 54501 · 53,000 lb · sleeps 54503 · 53,000 lb · sleeps 54513 · 54,000 lb · sleeps 54519 · 54,000 lb · sleeps 54521 · 54,000 lb · sleeps 5the whole line →
Is the 4360 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 dealer and aggregator listings, retrieved 2026-07.