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2020 Newmar Mountain Aire 4551 Class A Diesel Motor Home

Sale Price

$374,399

NADA Retail

$629,515

Condition: Used
Stock Number: 54A
Miles: 53,500

Visit Our Location

3032 E. Main Street,
Mesa, AZ 85213

Overview & Specs

View Additional Specifications  
Length

Length

44' 10"
Width

Width

8' 6"
Height

Height

13" 2"
Height

Weight

54,000
Engine Model

Engine Model

500 Hp Cummins®
Sleeps

Sleeps

4
Fresh Water

Fresh Water

105
Black Water

Black Water

45
Slide Outs

Slide Outs

4+ Slide Outs

Description

2020 Newmar Mountain Aire 4551 – Luxury Diesel Class A Motorhome

The 2020 Newmar Mountain Aire 4551 sets the gold standard for luxury, performance, and style in Class A diesel motorhomes. Powered by a 500HP Cummins engine on a Spartan K3 Tag Axle chassis, this motorhome delivers exceptional performance and comfort for discerning travelers. Every detail of this coach has been thoughtfully designed to create an unparalleled RV experience.

Key Features of the 2020 Newmar Mountain Aire 4551

Power and Performance

  • Engine: 500HP Cummins diesel engine for robust and efficient performance.
  • Transmission: Allison 400 automatic transmission for seamless shifting.
  • Chassis: Spartan K3 Tag Axle chassis provides unmatched stability and smooth handling.
  • Air Leveling System: Ensures a stable and comfortable ride on any terrain.
  • Generator and Inverter:
    • 12.5 kW Cummins Onan diesel generator for reliable power.
    • 3000-watt True Sine inverter for efficient electrical output.
Exterior Highlights
  • Full-Paint Masterpiece Finish: Stunning design with Cut & Buff and Nano Shield Protection on the front cap.
  • Solar Power: Two roof-mounted solar panels plus a 10-watt solar panel for chassis battery charging.
  • Awnings: Two Nova side awnings with LED lighting for outdoor relaxation.
  • Storage: Abundant exterior compartments for all your travel gear.
Interior Features

Spacious Living Area

  • Luxurious furnishings, including an 87″ chaise lounge and a 68″ Dormi sofa.
  • Samsung LED TVs throughout, including a retractable 50″ 4K LED TV in the living area.
  • Bose 300 SoundTouch Soundbar and JBL slimline subwoofer for immersive audio.
  • Designer feature ceiling with elegant touches and radiant tile flooring with electric heat.

Gourmet Kitchen

  • Stainless Steel Whirlpool Refrigerator (19.7 cu. ft.) for ample food storage.
  • 30″ Convection Microwave, two-burner cooktop, and a dishwasher for convenience.
  • Solid surface countertops and a large pantry for efficient meal prep and storage.

Master Suite

  • Spacious bedroom with Bermuda Glazed Maple Hardwood Cabinets and raised panel doors.
  • Comfortable king-sized bed with premium bedding.
  • Ample wardrobe space for all your belongings.

Bath and a Half

  • Aqua Miser Shower System with large tiled walls and glass doors.
  • Dual vanities with solid surface countertops for added convenience.
Entertainment and Technology
  • Entertainment Center: Optional exterior TV and satellite dish prep for outdoor enjoyment.
  • Advanced Technology:
    • Comfort Drive adaptive steering with Passive Steer for effortless handling.
    • STAR foundation for enhanced durability and a quieter ride.
    • Touchscreen controls for seamless system management.
Why Choose the 2020 Newmar Mountain Aire 4551?

The 2020 Newmar Mountain Aire 4551 combines luxurious living, cutting-edge technology, and powerful performance in one exceptional motorhome. Perfect for full-time RVers or long vacations, it delivers a first-class experience wherever you go.

Additional Specifications

General
Manufacturer Newmar
Model Mountain Aire 4551
Year 2020
Category RV – Class A
Subcategory Diesel Pusher
Condition Used
Stock Number 54A
Miles 53500
Operational
Air Conditioning Bt Us 45000
Air Conditioning Type Automatic
Fuel Capacity Gal 150
Fuel Capacity L 567.8
Number Of Black Water Holding Tanks 1
Number Of Fresh Water Holding Tanks 1
Number Of Gray Water Holding Tanks 1
Number Of Propane Tanks 1
Total Black Water Tank Capacity Gal 45
Total Black Water Tank Capacity L 170.3
Total Fresh Water Tank Capacity Gal 105
Total Fresh Water Tank Capacity L 397.5
Total Gray Water Tank Capacity Gal 65
Total Gray Water Tank Capacity L 246.1
Total Propane Tank Capacity Gal 22
Total Propane Tank Capacity Lbs 93.3
Water Heater Pump Power Mode Propane
Water Heater Tank Bypass No
Measurements
Height In 158
Height Mm 4013.2
Interior Height In 83
Interior Height Mm 2108.2
Length Ft 44.83
Length Ft Ft 44
Length Ft In 10
Length In 538
Length M 13.7
Length Mm 13700
Number Of Awnings 2
Power Retractable Awning Yes
Screened Room No
Wheelbase In 246
Wheelbase Mm 6248.4
Width In 101.5
Width Mm 2578.1
Engine Drivetrain
Fuel Type Diesel
Engine Make Cummins
Horsepower 500
Body
Interior Colors Brown, Grey
Sleeping Capacity 4
No Of Slide Outs 4
Chassis Model Spartan K3
Exterior Colors Grey, Burgandy
Front Tire Aspect Ratio 70
Front Tire Full Spec Michelin® XZA: 365/70R 22.5
Front Tire Width 365
Front Wheel Diameter 22.5
Front Wheel Width In 9
Number Of Axles 2
Number Of Rows 1
Number Of Seats 2
Power Adjustable Seat Yes
Rear Tire Aspect Ratio 80
Rear Tire Full Spec Michelin® X Line Energy Z: 315/80R 22.5
Rear Tire Width 315
Rear Wheel Diameter 22.5
Rear Wheel Width In 9
Reclining Seats Yes
Seat Armrests Yes
Seat Material Leather
Seat Type Bucket
Swivel Seats Yes
Tire Brand Michelin®
Wheels Composition Aluminum
Weights
Dry Weight Kg 20865.6
Dry Weight Lbs 46000
G Vwr Kgs 24494.4
G Vwr Lbs 54000
Payload Capacity Kgs 3628.8
Payload Capacity Lbs 8000
Rear Hitch Type Receiver
Size Cm 5.1
Size In 2
Tongue Weight Kgs 680.4
Tongue Weight Lbs 1500
Towing Capacity Kgs 6804
Towing Capacity Lbs 15000