New 2022 Supreme Aire 4590 Motor Home Super C - Diesel

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Supreme Aire 4590 Description

Newmar Supreme Aire Super C diesel motorhome 4590 highlights:

  • Bath and a Half
  • Bunk Beds
  • Master Suite
  • Whirlpool Refrigerator
  • Exterior Shower
  • Rear Cap Storage


Comfort and convenience is what you will find all throughout this motorhome! From the bath and a half to the exterior shower and emergency exit. The kids or guests can sleep on the 30" x 72" bunk beds with drawers below and you can sleep on the king bed slide in the master suite, plus the 74" jackknife sofa can also transform into an extra sleeping space. Once you have prepared your best meals with the recessed two burner induction cooktop and even the stainless steel 30" convection microwave, you can head to the hide-a-leaf dinette to enjoy it there comfortably then play a card game. The full rear bathroom has a 40" x 30" shower with a seat for you to clean up in after a long day of traveling, as well as a wardrobe with a safe and drawers and an area that is prepped to add an optional washer and dryer for clean clothes throughout your entire trip!


Each one of these Newmar Supreme Aire Super C diesel motorhomes are built with an industry-exclusive full-paint Masterpiece Finish exterior! They are powered by a hefty 505HP 12.8L Detroit DD13 diesel engine with a 1850 lb./ft. of torque and held together by a Freightliner M-2 112 chassis. A 12.5 kW Cummins diesel generator powers the units and the Nav-N-Go navigation system that comes with the new 9" Xite dash monitor system will keep you right on track. An industry-first innovation that Newmar has included is a pass-through basement storage to hold all of your outdoor gear. The full air-ride cab is exclusive to the Newmar Super C motorhomes and the plushier air-ride captain's chairs with 12V lumbar control welcomes you with comfort. Every model comes with stylish appointments and many conveniences, come find the perfect one for you today!

Supreme Aire 4590 Specifications

Sleeps 6
Slides 3
Length 44 ft 11 in
Ext Width 8 ft 6 in
Ext Height 13 ft 2 in
Int Height 6 ft 11 in
Interior Color Avalon, Beckford, Hamden, Ibis
Exterior Color Avalon, Beckford, Hamden, Ibis
Hitch Weight 30000 lbs
Gross Weight 58000 lbs
Dry Weight 43100 lbs
Cargo Weight 14900 lbs
Fresh Water Capacity 150 gals
Grey Water Capacity 60 gals
Black Water Capacity 40 gals
Furnace BTU 50000 btu
Generator 12.5 kW Onan Diesel
Fuel Type Diesel
Engine 12.8L Detroit DD13
Chassis Freightliner M-2 112
Horsepower 505 hp
Fuel Capacity 100 gals
Wheelbase 309 in
Number Of Bunks 2
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 30"
Number of Awnings 2
Axle Weight Front 18000 lbs
Axle Weight Rear 20000 lbs
Axle Weight Tag 20000 lbs
Water Heater Type Demand
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

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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.