2021 Newmar Mountain Aire 4551

  • 2021 Newmar Mountain Aire 4551

Newmar Mountain Aire Class A diesel motorhome 4551 highlights:

Two Sink Vanity
Bath and a Half
Hide-A-Leaf Dinette
Pull Out Cabinet
Designer Feature Ceiling
Wireless Charging Mat

There is plenty of entertainment for everyone with this Mountain Aire diesel motorhome! From the three Samsung LED TV's throughout, the Boss 300 Sound Touch sound bar, and the JBL slimline subwoofer to the optional exterior entertainment center and satellite dish prep on the roof. After you have grabbed your favorite snack from the large pantry and favorite drink from the Whirlpool 19.7 cu. ft. refrigerator, you can head outdoors and enjoy some fresh air while you relax underneath one of the two Nova side awnings or stay inside and relax on either the 87" chaise lounge or the 68" Dormi sofa. You might even like to add a few options to customize your RV to enhance the already luxurious and comfortable coach.

You will be creating your own classic beauty when you select Newmar's Mountain Aire Class A diesel motorhome for your traveling home. This luxury coach tells the world that you have arrived, and you have impeccable taste! Powered by a 500 Hp Cummins® engine atop a Freightliner or Spartan chassis you can go just about anywhere. They are also built on an ultra-durable STAR foundation for a quieter ride and come standard with the Comfort Drive adaptive steering with Passive Steer technology. Inside each model you will find an impressive living space including fantastic entertainment features like a retractable Samsung 50" 4K LED TV, a Bose 300 SoundTouch soundbar, and a Sony Blue-ray player. You will also love the appealing refreshed tile floor with radiant electric heat, and the elegant decorative touch of the designer feature ceiling. It's time you do traveling the right way with one of these Mountain Aire Class A diesel motorhomes!

About these values
TypeClass A
Stock IDON ORDER 779073
StatusComing Soon
UVW45,300 lbs
CCC8,700 lbs
GVWR54,000 lbs
GCWR69,000 lbs
Length (ft,in)44' 10"
Width (ft,in)8' 6"
Height (ft,in)13' 2"
Fresh Tank105 gal
Gray Tank65 gal
Black Tank45 gal
Fuel Cap150 gal
EngineCummins ISX 11.9L 500hp
Can Tow7,500 lbs


Tag Axle Chassis
Air Leveling System
Aluminum Framed
Full Body Paint
Back-Up Alarm
Tri-View Rear Camera
Keyless Entry
50-Amp Service
3k Watt Inverter
Diesel Generator
Triple 15k A/C Units
Hydronic Zone Heat
Continuous Hot Water
Water Filtration
LED Lighting
Tile Flooring
Entertainment System
Solid Surface Counter
Flush Gas Cooktop
Convection Microwave
Cedar Wardrobe
Glass Shower Door
Bath Skylight
Power Vent

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Notice:  Terms and payment amounts are not an offer or extension of credit. Actual terms and payments will vary based on an applicants credit history and financial resources.

Floorplan for STOCK#ON ORDER 779073
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