Line photo: Newmar publishes one photo for the King Aire line, so it may show another floorplan. Windows and slides can differ from the 4531 described here.

Newmar · Class A · 2027

Newmar King Aire 4531

Newmar's flagship sits at around $1,755,000 and rides on a Spartan K3 tag-axle chassis with a Cummins X15. The 4531 is a couples and entertaining plan with a spa-style bath and midship half bath, a lithium house bank, and a built-in washer and dryer.

Approx. price: ~$1,754,560; maker starting price for the line
Length: 44.9 ft
Sleeps: 5

Specifications

Size

Exterior length: 44.9 ft
Exterior height: 13.3 ft
Sleeps: 5
Slide-outs: 4

Tanks and power

Fresh water: 105 gal
Gray water: 80 gal
Black water: 60 gal
Factory solar: 10 W
House battery: 4 house batteries, 2560 Ah total (standard)
Generator: Cummins Onan 12.5 kW

Chassis

Chassis: Spartan
Engine: Cummins 15.0L, 605 hp; Allison 6-speed
Fuel: Diesel

Standard equipment named by the maker

Spartan K3 tag-axle chassis
Cummins X15 15.0L 605 hp, Allison 4000 MH
2,560 Ah lithium house batteries
Spa-style bath, midship half bath
Built-in washer/dryer; optional fireplace
20,000-lb hitch
King bed, 1.5 baths
Washer/dryer: Yes

Weights

2027 maker figures

GVWR: 54,000 lb
Dry weight (UVW): 49,900 lb
Occupant + cargo (OCCC): 4,100 lb
Towing capacity: 20,000 lb

4,100 lb between brochure dry weight and GVWR. Water (8.3 lb a gallon), food, gear, propane and dealer-added options all come out of it.

What these weights mean →

Size, to scale

051015202530354045 ft

Newmar King Aire 4531 · 44.9 ft long · 13′4″ tall

Drawn to one scale from each camper's listed length and, where the maker publishes it, its exterior height. Outlines are typical for the camper type, not traced from this model. The figure is a 6 ft person. The dashed blue line is 25 ft, the length about 93% of national park campgrounds accept.