2026 Newmar Supreme Aire 4129

New Super C in Perry, Iowa, 50220

$801,084.00
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New 2026 Newmar Supreme Aire 4129 available in Perry, Iowa
2026 Newmar Supreme Aire 4129 - New Super C For Sale by McKee RV in Perry, Iowa features Slideout
2026 Supreme Aire 4129 by Newmar from McKee RV in Perry, Iowa
New 2026 Newmar Supreme Aire 4129 available in Perry, Iowa

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

General

MSRP

$678,580

Dimensions

Height

13' 2"

Height (interior)

6' 11"

Length

41' 11"

Width

8' 5"

Weights

Dry Weight

37,000 lbs

GVWR

41,000 lbs

Payload Capacity

4,000 lbs

Capacities

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/Transmission

Engine Manufacturer

Detroit

Engine Model

DD13

Fuel Type

Diesel

Transmission Spec

Detriot DT-12 12-Speed

Exterior

# Awnings

1

# Axles

3

# Doors

3

# Slides

4

Chassis

Freightliner® Cascadia 525Hp Single Axle Chassis

Electrical

# A/C

2

A/C Spec

15K BTU Penguin™ HEat Pump Air Conditioners

*MFG Specs are for base unit. Certain options may change specifications listed. Please consult dealer for more details. Data is provided by a 3rd party. RVUSA.com cannot guarantee the accuracy of the data presented.

2026 Newmar Supreme Aire 4129 Literature


Seller Info

McKee RV

400 First Street
Perry, IA 50220

Member Since 2015

See 423 Reviews

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

Email Seller

Request More Info on this 2026 Newmar Supreme Aire 4129 Offered for sale by McKee RV
McKee RV
McKee RV

400 First Street
Perry, IA 50220

Phone: Click to Call

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New 2026 Newmar Supreme Aire 4129 available in Perry, Iowa
2026 Newmar Supreme Aire 4129 - New Super C For Sale by McKee RV in Perry, Iowa features Slideout
2026 Supreme Aire 4129 by Newmar from McKee RV in Perry, Iowa
New 2026 Newmar Supreme Aire 4129 available in Perry, Iowa