Newmar · Class A · 4531

2025 Newmar King Aire · 4531

Floor plan 4531 as listed by RVGuide.com, a third-party specification guide.

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

Price when new
$1,639,200
Length
44.92 ft
Chassis
Spartan K3
Engine
Cummins · 605 hp

About the price: MSRP listed by RVGuide.com for the 2025 King Aire 4531. This is RVGuide.com's suggested list price, re-checked on its pages on October 5, 2026. RVGuide.com does not date the figure or say what it covers, and it was not checked against a Newmar document.

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
2025
Variant
4531
Chassis maker
Spartan
Chassis
K3
Engine maker
Cummins
Engine
Not documented
Displacement (L)
15
Horsepower
605
Torque (lb-ft)
Not documented
Transmission
Allison automatic, 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 2025

4531

Other 2025 records

Notes

Every value on this record comes from RVGuide.com, not from a Newmar document. RVGuide.com lists length as 539 inches and height as 160 inches. It also lists GVWR 54,000 lb, dry weight 49,800 lb, a 292-inch wheelbase, and torque of 2,646 Nm at 1,150 rpm (about 1,950 lb-ft). It describes the engine as a Cummins inline-six diesel pusher without a model name.

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 Facts are checked against these sources; tell us if you find one that is out of date.

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2025 Newmar King Aire · 4531: specifications | Motorcoach.direct