2025 King Aire 4521
Current price
$1,204,995
This unit has seen 3 price adjustments. RV Envy Pro lets you see the full price history.
Current price
$1,204,995
This unit has seen 3 price adjustments. RV Envy Pro lets you see the full price history.
Newmar King Aire 4521 Class A Diesel Motorhome - Luxury That Travels With You
Experience the ultimate in luxury RV travel with the Newmar King Aire 4521 Class A diesel motorhome. Designed for travelers who expect exceptional comfort, premium craftsmanship, and impressive space, the King Aire 4521 delivers a first-class experience from the driver's seat to the bedroom. With a full-wall slide, two additional slides, a bath and a half, and upscale residential features throughout, this coach makes every journey feel like a luxury retreat.
Key Features
Bath and a half
Visionary tri-fold sofa
Swivel cab seats
King bed slide out
Kitchen pantry
Full-wall slide
Euro booth dinette
50" x 34" shower with seat
Samsung two-piece stacked washer and 220 volt dryer
19.8 cu. ft. refrigerator with 36" French door
Wolf induction cooktop
Viking convection microwave
Lithium ion battery system
12.5 kW Cummins Onan diesel generator
Step inside and discover an incredible amount of living space created by the full-wall slide and two additional slides. The main living area offers a Visionary tri-fold sofa and comfort lounge, providing comfortable seating and additional sleeping space when needed. The Euro booth dinette creates a welcoming place for meals, morning coffee, or relaxing with family and friends.
The kitchen is ready for serious cooking with an all-electric Wolf induction cooktop, stainless steel Viking convection microwave, and 19.8 cu. ft. refrigerator featuring a 36" French door and internal ice maker. A convenient pantry provides additional storage for groceries and kitchen essentials.
Retreat to the spacious bedroom and enjoy the comfort of the king bed slide out. After a restful night, the rear bath makes getting ready for the day easy with a 50" x 34" shower with a seat, large sink with dual faucets, wardrobe with sliding doors, and Samsung stacked washer and 220 volt dryer. A second bathroom adds even more convenience for you and your guests.
The King Aire is built on a Spartan K3 tag axle chassis with Newmar's exclusive STAR Foundation for enhanced strength, durability, handling, and driving confidence. Swivel cab seats, Italian leather captain's chairs, Comfort Drive adaptive steering, an Xite dash radio, and wireless charging mats make the journey just as enjoyable as the destination.
Inside, luxury surrounds you with auto motion power shades, tile flooring, European-style hardwood cabinets, super polished quartz countertops, and full-tiled shower walls and floor. Electric radiant heat beneath the main floor tile adds another layer of comfort.
Advanced technology includes a lithium ion battery system, 12.5 kW Cummins Onan diesel generator, doorbell and camera system, and passive entry system. With traditional or contemporary exterior design options, four interior decor choices, and four hardwood stain options, you can customize your King Aire to match your personal style.
Why Choose Campers Inn of Louisville
At Campers Inn of Louisville, we are committed to helping you find an RV that fits your travel dreams and lifestyle. Our knowledgeable team, wide selection, competitive pricing, and dedication to customer service make the RV buying process simple and enjoyable. Our commitment continues after the sale with service and support you can trust.
The Newmar King Aire 4521 is more than a motorhome. It is a luxury destination on wheels, combining residential comfort, advanced technology, premium craftsmanship, and confident diesel performance for unforgettable adventures.
Campers Inn RV of Louisville
812-282-7718
Options:
Newmar King Aire 4521 Class A Diesel Motorhome - Luxury That Travels With You
Experience the ultimate in luxury RV travel with the Newmar King Aire 4521 Class A diesel motorhome. Designed for travelers who expect exceptional comfort, premium craftsmanship, and impressive space, the King Aire 4521 delivers a first-class experience from the driver's seat to the bedroom. With a full-wall slide, two additional slides, a bath and a half, and upscale residential features throughout, this coach makes every journey feel like a luxury retreat.
Key Features
Bath and a half
Visionary tri-fold sofa
Swivel cab seats
King bed slide out
Kitchen pantry
Full-wall slide
Euro booth dinette
50" x 34" shower with seat
Samsung two-piece stacked washer and 220 volt dryer
19.8 cu. ft. refrigerator with 36" French door
Wolf induction cooktop
Viking convection microwave
Lithium ion battery system
12.5 kW Cummins Onan diesel generator
Step inside and discover an incredible amount of living space created by the full-wall slide and two additional slides. The main living area offers a Visionary tri-fold sofa and comfort lounge, providing comfortable seating and additional sleeping space when needed. The Euro booth dinette creates a welcoming place for meals, morning coffee, or relaxing with family and friends.
The kitchen is ready for serious cooking with an all-electric Wolf induction cooktop, stainless steel Viking convection microwave, and 19.8 cu. ft. refrigerator featuring a 36" French door and internal ice maker. A convenient pantry provides additional storage for groceries and kitchen essentials.
Retreat to the spacious bedroom and enjoy the comfort of the king bed slide out. After a restful night, the rear bath makes getting ready for the day easy with a 50" x 34" shower with a seat, large sink with dual faucets, wardrobe with sliding doors, and Samsung stacked washer and 220 volt dryer. A second bathroom adds even more convenience for you and your guests.
The King Aire is built on a Spartan K3 tag axle chassis with Newmar's exclusive STAR Foundation for enhanced strength, durability, handling, and driving confidence. Swivel cab seats, Italian leather captain's chairs, Comfort Drive adaptive steering, an Xite dash radio, and wireless charging mats make the journey just as enjoyable as the destination.
Inside, luxury surrounds you with auto motion power shades, tile flooring, European-style hardwood cabinets, super polished quartz countertops, and full-tiled shower walls and floor. Electric radiant heat beneath the main floor tile adds another layer of comfort.
Advanced technology includes a lithium ion battery system, 12.5 kW Cummins Onan diesel generator, doorbell and camera system, and passive entry system. With traditional or contemporary exterior design options, four interior decor choices, and four hardwood stain options, you can customize your King Aire to match your personal style.
Why Choose Campers Inn of Louisville
At Campers Inn of Louisville, we are committed to helping you find an RV that fits your travel dreams and lifestyle. Our knowledgeable team, wide selection, competitive pricing, and dedication to customer service make the RV buying process simple and enjoyable. Our commitment continues after the sale with service and support you can trust.
The Newmar King Aire 4521 is more than a motorhome. It is a luxury destination on wheels, combining residential comfort, advanced technology, premium craftsmanship, and confident diesel performance for unforgettable adventures.
Campers Inn RV of Louisville
812-282-7718
Options:
Length
44 ft 11 in
Dry weight
49,200 lbs
Sleeps
5 people
Slideouts
3
Odometer
31,000 miles
Length
44 ft 11 in
Dry weight
49,200 lbs
Sleeps
5 people
Slideouts
3
Odometer
31,000 miles
As provided in the original listing
As provided in the original listing
