Unit Specs
- Stock #488735
- Year2021
- ManufacturerNewmar
- Make Newmar
- ModelMountain Aire
- Floorplan4551
- Type Diesel Pusher
- Secondary Type Diesel Pusher
- ConditionUsed
- Mileage24,000 miles
- Length45' 0"
- Width8' 0"
- Height13' 0"
- Price $440,000.00
- Need to know your payment? Use our RV Loan Calculator!
- ChassisSpartan
- Engine ManufacturerCummins
- Engine ModelX12
- Fuel TypeDiesel
- Sleeps4
- Water Capacity (Fresh)105 gal
- Water Capacity (Grey)80 gal
- Air Conditioners3
- A/C Spec15,000 BTU
- Slideouts3
- # Axles3
Looking to buy a 2021 Newmar Mountain Aire Diesel Pusher RV?
Stock #488735 -
2021 Newmar Mountain Aire 4551 with three slide-outs and a tag axle! Cummins X12 diesel power!
Incredible Luxury RV at a fraction of the cost!
This 2021 Newmar Mountain Aire 4551 is a top-tier luxury Class A diesel pusher built on a Spartan K3 tag axle chassis with a 500-horsepower Cummins engine.
Be prepared for a smooth and safe drive with Newmar's exclusive adaptive steering, Mobileye lane tracking, electronic stability control, and adaptive cruise control.
You will wow your campground neighbors with the full-paint exterior featuring a high-gloss shine and Beta-Fusion protection.
The basement storage features power-sliding cargo trays for easy gear loading.
Inside this RV, the bath-and-a-half provides space for everyone.
The heated porcelain tile floors are split into three distinct zones, giving you warm floors throughout, and the three 15M Penguin heat pump central air conditioners and wall-mounted sensors will maintain the temperature to your preferences.
The residential refrigerator, convection microwave, dishwasher, and washer and dryer allow you to extend your trips.
The three TVs inside the RV allow for maximum entertainment, and an additional exterior TV is great for tailgating.
This is legendary luxury at an incredible value.
This listing is new to market. Any reasonable offer may be accepted. Submit an offer today!
Reason for selling is not using.
You have questions? We have answers. Call us at (941) 200-1030 to discuss this RV.
Selling your RV has never been easier. At Pop RVs, we literally sell thousands of units every year all over the country. Call (855) 273-7188 and we'll get started selling your RV today.
2021 Newmar Mountain Aire 4551 with three slide-outs and a tag axle! Cummins X12 diesel power!
Incredible Luxury RV at a fraction of the cost!
This 2021 Newmar Mountain Aire 4551 is a top-tier luxury Class A diesel pusher built on a Spartan K3 tag axle chassis with a 500-horsepower Cummins engine.
Be prepared for a smooth and safe drive with Newmar's exclusive adaptive steering, Mobileye lane tracking, electronic stability control, and adaptive cruise control.
You will wow your campground neighbors with the full-paint exterior featuring a high-gloss shine and Beta-Fusion protection.
The basement storage features power-sliding cargo trays for easy gear loading.
Inside this RV, the bath-and-a-half provides space for everyone.
The heated porcelain tile floors are split into three distinct zones, giving you warm floors throughout, and the three 15M Penguin heat pump central air conditioners and wall-mounted sensors will maintain the temperature to your preferences.
The residential refrigerator, convection microwave, dishwasher, and washer and dryer allow you to extend your trips.
The three TVs inside the RV allow for maximum entertainment, and an additional exterior TV is great for tailgating.
This is legendary luxury at an incredible value.
This listing is new to market. Any reasonable offer may be accepted. Submit an offer today!
Reason for selling is not using.
You have questions? We have answers. Call us at (941) 200-1030 to discuss this RV.
Selling your RV has never been easier. At Pop RVs, we literally sell thousands of units every year all over the country. Call (855) 273-7188 and we'll get started selling your RV today.
2021 Newmar Mountain Aire 4551 Features
-
Electrical
Air Conditioning, Generator -
Exterior
Awning, Leveling Jacks, Slideout
2021 Newmar Mountain Aire Brochure 1
Call:
941-281-3122
Stock #: 488735
Seller Info
![Pop RVs]()
Unit Specs
- Stock #488735
- Year2021
- ManufacturerNewmar
- Make Newmar
- ModelMountain Aire
- Floorplan4551
- Type Diesel Pusher
- Secondary Type Diesel Pusher
- ConditionUsed
- Mileage24,000 miles
- Length45' 0"
- Width8' 0"
- Height13' 0"
- Price $440,000.00
- Need to know your payment? Use our RV Loan Calculator!
- ChassisSpartan
- Engine ManufacturerCummins
- Engine ModelX12
- Fuel TypeDiesel
- Sleeps4
- Water Capacity (Fresh)105 gal
- Water Capacity (Grey)80 gal
- Air Conditioners3
- A/C Spec15,000 BTU
- Slideouts3
- # Axles3
Looking to buy a 2021 Newmar Mountain Aire Diesel Pusher RV?
Unit Location
- City Parker
- State Colorado
- Zip 80134
Email Seller
Request More Info on this 2021 Newmar Mountain Aire 4551 Offered for sale by Pop RVs
Want S'more?
Sign up for the RVUSA Happy Camper Newsletter!
Everything about RV life delivered directly to your inbox. The hottest RVs, tips & tricks, recipes, travel destinations, new gadgets & much more!
Related Searches:
Similar Units From Pop RVs
Recent stories from our Blog
Related Rental Searches:
Similar Units for Rent
2021 Newmar Mountain Aire 4551 Gallery