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Used 2021 Newmar Supreme Aire 4573

2021 4573 Features and Options

Newmar Supreme Aire Super C diesel motorhome 4573 highlights:

  • Full and Half Bath
  • Full-Wall Slide
  • 100" Chaise Lounge
  • Dinette/Buffet
  • Large Skylight Window
  • 30,000 LB. Towing Hitch


Start your trail rides waking up from your own king plush pillow top mattress with a bed top lift for ultimate comfort.  The master suite offers a dresser, shirt wardrobes and a Samsung LED TV with Sony Blu-Ray disc player, and easy access to the full bathroom with a seated shower, a stacked washer/dryer and a wardrobe.  Your guests can use the mid-coach half bath after sleeping on the chaise lounge and dormi sofa.  You can dine or work from the dinette which easily pulls out from the wall to seat four people.  The cook will enjoy having a full kitchen to whip up meals including a convection microwave and two-burner induction cooktop, and you might have decided to add the dishwasher drawer option. And the LED lights are recessed in the ceiling and underneath the overhead cabinets, plus you will also find accent lights in the feature ceiling, the slide out fascia and lambrequins,  


With any Newmar Supreme Aire Super C diesel motorhome you will experience power with a 505 HP Cummins diesel engine, safety with the HD 360 camera system making it easy to park anywhere, and lots of storage including in the exterior rear cab.  The full-paint Masterpiece finish with cut and buff and beta fusion protection on the front cap offers a stylish exterior, the decor and cabinet color choices allow you to customize the interior, and the many standard amenities give you comfort, convenience and luxury you are accustom to having. Depending on the coach you choose, you will have two or three 15M Penguin heat pump air conditioners with remote control thermostat, plus each Supreme Aire has electric radiant heat installed below the main floor tile, a 10 watt solar panel to charge the chassis battery, auto motion power shades and lambrequins, hardwood fascia, and many more technology advances and luxury appointments to enjoy each trip you take!     

Location: Baton Rouge, LA
Stock# MA9407
2021 4573 Specifications
Sleeps 6
Slides 3
Ext Width 8 ft 6 in
Ext Height 13 ft 2 in
Int Height 6 ft 11 in
Exterior Color Red
Hitch Weight 30000 lbs
GVWR 58000 lbs
Dry Weight 42950 lbs
Cargo Capacity 15050 lbs
Fresh Water Capacity 150 gals
Grey Water Capacity 60 gals
Black Water Capacity 40 gals
Furnace BTU 50000 btu
Fuel Type Diesel
Miles 8795
Engine Cummins
Chassis Freightliner M-2 112
Horsepower 505 hp
Fuel Capacity 100 gals
Wheelbase 309 in
Available Beds King
Torque 1850 ft-lb
Refrigerator Type Whirlpool
Refrigerator Size 19.7 cu ft
Convection Cooking Yes
Cooktop Burners 2
Shower Size 40" x 32"
Number of Awnings 2
Axle Weight Front 18000 lbs
Axle Weight Rear 20000 lbs
Axle Weight Tag 20000 lbs
Water Heater Type Hydronic Zone Diesel Heat Continuous
AC BTU 45000 btu
TV Info LR 50" 4K LED TV on Lift, BR Samsung LED TV
Awning Info Nova Side
Washer/Dryer Available Yes
Gross Combined Weight 72000 lbs
Shower Type Shower w/Seat
Electrical Service 50 amp
For more information, call us at 225-272-8000 or Contact Us
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Newmar is a company built around the Christian faith, specifically the beginning of the Mennonite faith in 1525 under the guidance of Ulrich Zwingli, and the founding of the Amish fellowship under Jacob Amman in 1693.


At Newmar, we believe that a motor coach is more than just a vehicle, it’s a passport to countless hours of fun and a lifelong memories taken from quality time spent with family and friends.


For over 50 years, we’ve applied our principles to the creation of motor coaches that have allowed people all over the world to live the RV lifestyle. And we’ll continue to so for countless generations to come. It’s why we take pride in every rivet, weld, and mechanical function.

The RV Shop is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes sales tax, registration tags, and delivery fees. Manufacturer pictures, specifications, and features may be used in place of actual units on our lot. Please contact us @225-272-8000 for availability as our inventory changes rapidly. All calculated payments are an estimate only and do not constitute a commitment that financing or a specific interest rate or term is available.

Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. Where an image has a stock image indicator, please confirm specific unit details with your dealer representative.

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