New 2026 Newmar Supreme Aire 4129 Motor Home Super C - Diesel

2026 4129 Features and Options

Newmar Supreme Aire Super C diesel motorhome 4129 highlights:

  • Hide-A-Bed Sofa
  • Retracting King Bed
  • Whirlpool Refrigerator
  • Stainless Steel Microwave
  • Bose Sound System

 

This sure is a supreme floorplan is all about giving you a real “home” layout inside a Super C coach. Up front, the living area feels like a true lounge, with seating arranged around the TV on power lift, so you can drop it down for movie night and tuck it away when you just want open windows and conversation. Mid-coach, the galley is set up for real cooking, not just snacking, with handy pantry storage for full-trip groceries and a solid work triangle between the appliances and counter space. Across from the kitchen, the booth dinette gives you a comfortable spot for meals, laptops, or board games, and it can pull double duty as extra sleeping space when you need it. In back, the bedroom centers on a retracting king bed that opens up the room when you’re getting dressed or moving around, then extends for a full, roomy sleep surface at night. Altogether, it is a very livable layout that works as well on a long haul as it does parked for an extended stay.

 

The Newmar Supreme Aire Super C diesel motorhomes continue to raise the bar with even more luxury and innovation you will not find on most other Super C coaches. Built on the Freightliner Cascadia chassis with serious diesel power and heavy-duty towing capability, they are made for confident travel whether your destination is the coast, the mountains, or anywhere in between. Inside, the Supreme Aire feels more like a high-end residence than a motorhome, with refined cabinetry, premium seating options, and a thoughtfully designed living area that can be tailored to how you relax. A sky window above the cockpit brings in natural light when you want it, and the power shade lets you dial it back for movie nights or mid-day naps. Up front, air-ride captain’s chairs, a modern digital dash, and the Xite infotainment system work together to make every mile feel smooth, quiet, and under control.

What Our Customers Are Saying

Amazing Staff

Everyone at RV Leaders & Camping Outlet was awesome! Great buying experience. If anyone is looking to buy a cool camper and wants a smooth buying process, this is the place to go! - Ryan
Price: $689,680
Wade's RV
Location: Wade's RV Glenpool
Stock# SP4129
To get help now on this RV, call and enter the RV ID if prompted.
RV ID: 3579996#
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2026 4129 Specifications
Sleeps 5
Slides 4
Length 41 ft 11 in
Ext Width 8 ft 6 in
Ext Height 13 ft 2 in
Int Height 6 ft 11 in
Interior Color Brighton, Saguaro, Palisades
Exterior Color Blanco, Harding, Laughton, Portage, Seldovia
GVWR 41000 lbs
Dry Weight 37000 lbs
Fresh Water Capacity 150 gals
Grey Water Capacity 85 gals
Black Water Capacity 52 gals
Furnace BTU 50000 btu
Generator 8.0 kW Cummins Onan
Fuel Type Diesel
Engine Cummins DD13
Chassis Freightliner Cascadia 116
Horsepower 525 hp
Fuel Capacity 120 gals
Wheelbase 349 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 30"
Axle Weight Front 18000 lbs
Axle Weight Rear 23000 lbs
Water Heater Type Demand
AC BTU 30000 btu
TV Info LR 50" 4K LED TV on Lift, BR Samsung LED TV, EXT 43" Samsung® 4K LED TV
Awning Info Girard® G2000 Power Side Awning with Wind Sensor
Washer/Dryer Available Yes
Gross Combined Weight 61000 lbs
Shower Type Standard
Electrical Service 50 amp
Solar Wattage 10 watts
For more information Contact Us

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