2026 Newmar Supreme Aire 4129
New Super C in Perry, Iowa, 50220





Unit Specs
- Stock #6145
- Year2026
- ManufacturerNewmar
- Make Newmar
- ModelSupreme Aire
- Floorplan4129
- Floorplan LayoutBath and a Half
Rear Bath - Type Super C
- ConditionNew
- Length41' 0"
- VIN1FVAHTDV4TLWH5065
- Price $801,084.00
- Need to know your payment? Use our RV Loan Calculator!
- ChassisFreightliner Cascadia 116
- Engine Model12.8L Detroit DD13
- Fuel TypeDiesel
- Interior ColorSable / Summit - Saguaro
- Exterior ColorPortage
- Sleeps4
- Water Capacity (Fresh)150 gal
- Water Capacity (Black)52 gal
- Water Capacity (Grey)85 gal
- Slideouts3
- Tow/Hitch Weight20000 lbs
Newmar Supreme Aire Super C diesel motorhome 4129 highlights:
- Freightliner Cascadia 116
- Detroit DD13 - 500Hp / 1,850 lb-ft Of Torque
- DT12 Transmission
- Onyx Package
- Theater Seats
- Booth Dinette
- In Floor Heat
- Dishwasher
- Stacker Washer / Dryer
- 960 Ahr Lithium Ion Battery W/2 3,000W Pure Sine Inverters
- Starlink
- Power Shades
- Carefree Window Awning Package
You will feel right at home in this motorhome! The full rear bathroom has a 40" x 32" shower with a seat to freshen up in each morning, a wardrobe and a safe, and a Splendide two-piece stacked washer and dryer. Inside the master suite is a king bed slide for more interior space, a dresser with shirt wardrobes on either side, and a Samsung LED TV. The half bathroom is conveniently next to the kitchen so you can get back to preparing dinner on the all electric flush mount induction cooktop. The hide-a-leaf dinette is a comfortable place to enjoy meals and play card games.
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 525HP 12.8L Detroit DD13 diesel engine with a 1850 lb./ft. of torque and held together by a Freightliner Cascadia 116 chassis. A 8 kW Cummins diesel generator powers the units and the Nav-N-Go navigation system that comes with the 12.3" Xite dash monitor system will keep you right on track, and the Detroit Assurance Safety System will make the drive that much easier. This system includes object detection, intelligent high beams, pedestrian detection, and more safety features for your peace of mind. 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!
- Bath and a Half
- Rear Bath
2026 Newmar Supreme Aire 4129 Features
-
Exterior
Slideout
2026 Newmar Supreme Aire 4129 Specifications
MSRP
$678,580
Height
13' 2"
Height (interior)
6' 11"
Length
41' 11"
Width
8' 5"
Dry Weight
37,000 lbs
GVWR
41,000 lbs
Payload Capacity
4,000 lbs
Fuel Capacity
120 gal
Refrigerator Capacity
19 cu ft
Sleep Capacity
5
Water Capacity - Black
52 gal
Water Capacity - Fresh
150 gal
Water Capacity - Grey
85 gal
Engine Manufacturer
Detroit
Engine Model
DD13
Fuel Type
Diesel
Transmission Spec
Detriot DT-12 12-Speed
# Awnings
1
# Axles
3
# Doors
3
# Slides
4
Chassis
Freightliner® Cascadia 525Hp Single Axle Chassis
# A/C
2
A/C Spec
15K BTU Penguin™ HEat Pump Air Conditioners
2026 Newmar Supreme Aire 4129 Literature
Unit Specs
- Stock #6145
- Year2026
- ManufacturerNewmar
- Make Newmar
- ModelSupreme Aire
- Floorplan4129
- Floorplan LayoutBath and a Half
Rear Bath - Type Super C
- ConditionNew
- Length41' 0"
- VIN1FVAHTDV4TLWH5065
- Price $801,084.00
- Need to know your payment? Use our RV Loan Calculator!
- ChassisFreightliner Cascadia 116
- Engine Model12.8L Detroit DD13
- Fuel TypeDiesel
- Interior ColorSable / Summit - Saguaro
- Exterior ColorPortage
- Sleeps4
- Water Capacity (Fresh)150 gal
- Water Capacity (Black)52 gal
- Water Capacity (Grey)85 gal
- Slideouts3
- Tow/Hitch Weight20000 lbs
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Request More Info on this 2026 Newmar Supreme Aire 4129 Offered for sale by McKee RV
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