CamperHardlyKnowHer

Newmar Mountain Aire 4372

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 weight37,900 lb
Cargo capacity6,700 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
  • master bedroom bed(Permanent)
  • convertible dinette(Convertible)
  • 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
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

ISL-era 43-footer.

OTHER MOUNTAIN AIRE FLOORPLANS
Is the 4372 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.