Used 2025 Newmar King Aire 4521 Motor Home Class A - Diesel

2025 Newmar King Aire, formerly owned and customized for NASCAR legends Jimmy Johnson and Richard Petty. This is more than a motor coach — it’s a rolling VIP suite with championship pedigree.
Bath and Half Master Suite
2025 4521 Features and Options

Built on a robust Spartan K3 chassis and powered by a high-performance Cummins diesel engine, the 2025 Newmar King Aire 4521 offers exceptional power, stability, and driving confidence for cross-country adventures. Advanced suspension and steering systems provide a smooth, refined ride, while state-of-the-art safety features help make every journey as comfortable as it is secure.

Inside, the custom King Aire 4521 showcases Newmar’s renowned attention to detail with handcrafted cabinetry, premium finishes, designer furnishings, and sophisticated décor. The spacious floorplan creates an inviting atmosphere for extended travel, full-time RV living, or luxury vacationing. Expansive slide-outs maximize interior space, creating a residential feel that rivals upscale homes and luxury resorts.

The gourmet kitchen is thoughtfully designed for travelers who appreciate fine dining on the road. High-end appliances, solid-surface countertops, abundant storage, and premium fixtures provide both beauty and functionality. Whether preparing a quick breakfast or entertaining guests, the kitchen delivers exceptional convenience and style.

The elegant living area offers plush seating, advanced entertainment systems, and panoramic windows that fill the coach with natural light. Premium materials and carefully curated design elements create a relaxing environment perfect for unwinding after a day of exploration. Multiple entertainment options make it easy to enjoy movies, sporting events, or streaming content from virtually anywhere.

The private master suite elevates luxury RV travel with a spacious bedroom, premium king-size bed, extensive wardrobe storage, and refined residential touches throughout. The spa-inspired bathroom features upscale fixtures, premium finishes, and a spacious shower designed to provide a relaxing retreat wherever your travels take you.

Technology is seamlessly integrated throughout the 2025 Newmar King Aire 4521. Advanced control systems allow convenient management of lighting, climate, entertainment, and coach functions. High-end connectivity features support remote work, streaming, and staying connected while traveling across the country.

Luxury extends beyond the interior with beautifully crafted exterior features designed for premium outdoor living. Generous storage compartments accommodate travel essentials, recreational gear, and personal belongings, while exterior entertainment and comfort features enhance every campsite experience.

The custom 2025 Newmar King Aire 4521 represents the ultimate combination of luxury, innovation, and performance in the world of Class A diesel motorhomes. Whether you're planning extended cross-country journeys, seasonal travel, luxury RV resort stays, or full-time motorhome living, this exceptional coach delivers an unmatched level of comfort and sophistication.

If you are searching for a luxury motorhome, premium Class A diesel coach, Newmar King Aire for sale, luxury RV for full-time travel, or a high-end recreational vehicle built for extraordinary adventures, this custom 2025 Newmar King Aire 4521 stands among the finest motorhomes available today. Contact LazyDays powered by Camper's Inn to learn more about this remarkable luxury RV and begin your next chapter of elevated travel.

Options:
  • Lithium Power Package
What Our Customers Are Saying

Great Experience

What a great experience. Absolutely streamlined process of my trade in. I was in and out in just around an hour or so. The staff was super helpful. Cory gave me a walkthrough of my new unit, very knowledgeable staff. I highly recommend this group! - Alex
Price: $1,721,381
You Save: $521,386
Sale Price: $1,199,995
Campers Inn
Location: Tampa, FL
Stock# 113054


2025 4521 Specifications
Sleeps 5
Slides 3
Length 44 ft 11 in
Ext Width 8 ft 6 in
Ext Height 13 ft 4 in
Int Height 7 ft 2 in
Hitch Weight 20000 lbs
GVWR 54000 lbs
Dry Weight 49200 lbs
Cargo Capacity 4800 lbs
Fresh Water Capacity 105 gals
Grey Water Capacity 80 gals
Black Water Capacity 60 gals
Furnace BTU 85000 btu
Generator 12.5kw
Fuel Type Diesel
Miles 31000
Engine Cummins X15
Chassis Spartan K3 Tag Axle
Horsepower 605 hp
Fuel Capacity 165 gals
Wheelbase 292 in
Available Beds King
Torque 1950 ft-lb
Refrigerator Type Viking Stainless Steel w/French Door and Internal Ice Maker
Refrigerator Size 19.8 cu ft
Convection Cooking Yes
Cooktop Burners 2
Shower Size 50" x 34"
Number of Awnings 2
Axle Weight Front 20000 lbs
Axle Weight Rear 20000 lbs
Axle Weight Tag 14000 lbs
Water Heater Type Oasis
AC BTU 45000 btu
TV Info LR 55" 8K QLED on Power Lift, Cab 43" 4K QLED, BR 50" 4K LED, Ext. 43" 4K QLED
Awning Info Girard Nova Side w/Window Sensor, Remote Control & LED Lights
Washer/Dryer Available Yes
Gross Combined Weight 74000 lbs
Shower Type Shower w/Seat
Electrical Service 50 amp
Solar Wattage 400 watts
VIN 4VZVU1R14SC095853
For more information Contact Us
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