Newmar · Class A · 4531

2026 Newmar King Aire · 4531

Floor plan 4531 as listed on Newmar's 2026 King Aire floor plan page.

Fact-checked. An independent reviewer checked this page against its cited sources.

Price when new
$1,717,120
Length
44.92 ft
Chassis
Spartan K3 (tag axle)
Engine
Cummins X · 605 hp

About the price: Starting price on the floor plan 4531 card of Newmar's 2026 King Aire model page, read October 5, 2026. The page heading shows a lower figure, $1,700,320, and the floor plan's own 2026 page shows $1,754,560. No source explains the differences.

These values describe this model year and configuration. An individual coach can differ, so check it against the coach’s own records. “Not documented” means the encyclopedia does not have that fact yet.

Full specifications

Model year
2026
Variant
4531
Chassis maker
Spartan
Chassis
K3 (tag axle)
Engine maker
Cummins
Engine
X
Displacement (L)
15
Horsepower
605
Torque (lb-ft)
1950
Transmission
Allison 4000 MH, 6-speed
Length (ft)
44.92
Height (ft)
13.33
Width (in)
101.5
Slides
3
Floorplan
4531
Generator maker
Not documented
Generator
Not documented
Generator (kW)
Not documented
Fuel (gal)
165
Fresh water (gal)
105
Gray water (gal)
80
Black water (gal)
60
Luxury systems
Not documented
Intended use
Not documented

Floorplans offered in 2026

4531

Other 2026 records

Notes

Length is listed as 44 ft 11 in and height as 13 ft 4 in. Also listed: GVWR 54,000 lb; GCWR 74,000 lb; approximate unloaded weight 49,980 lb; 15-gallon DEF tank; hitch rating 20,000 lb; sleeps 5; 85,000 BTU furnace; lithium house batteries with 2,560 amp-hours in total. The chassis model (K3) is from the 2026 model page. The floor plan page does not list a generator.

Brochures and sources

Links open the original page. Facts are checked against these sources; tell us if you find one that is out of date.

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2026 Newmar King Aire · 4531: specifications | Motorcoach.direct