Newmar Mountain Aire Motor Home Class A - Diesel

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The Mountain Aire Class A diesel motorhome by Newmar offers luxury from the exterior with the industry-exclusive full-paint Masterpiece finish to the tile floor offering radiant electric heat and the classic kitchen appointments! 


Each coach is built exclusively on the Spartan K3 tag axle chassis with 500 HP and 1,695 lb./ft. of torque making it easy to travel up hills and while towing.  The Comfort Drive adaptive steering and standard Mobileye lane tracking, the electronic stability control and OnGuard collision mitigation technology among other features provide safety on the road. Traveling with your own master suite, designer feature ceiling and cathedral ceiling with added height on rear bath coaches, and loads of technology including audio and video entertainment, you will never want to go back home.


If you are looking for solitude, moments of calm, function and luxury, choose the Mountain Aire Class A diesel motorhome by Newmar and start receiving what you seek! 

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Motor Home Class A - Diesel

  1. Bath and a Half, Rear Bath
    • Length: 41 ft 10 in
    • Weight: 44100 lbs
    • Slides: 3
    • Sleeps: 6
  2. Bath and a Half, Rear Bath
    • Length: 41 ft 10 in
    • Weight: 43100 lbs
    • Slides: 3
    • Sleeps: 6
  3. Floorplan - 2017 Newmar Mountain Aire 4533
    Bath and a Half, Rear Bath
    • Length: 44 ft 10 in
    • Weight: 45500 lbs
    • Slides: 3
    • Sleeps: 6
  4. Bunkhouse, Bath and a Half
    • Length: 44 ft 10 in
    • Weight: 45500 lbs
    • Slides: 3
    • Sleeps: 7
  5. Bath and a Half, Rear Bath
    • Length: 44 ft 10 in
    • Weight: 45500 lbs
    • Slides: 3
    • Sleeps: 6
  6. Bath and a Half, Rear Bath
    • Length: 44 ft 10 in
    • Weight: 45300 lbs
    • Slides: 3
    • Sleeps: 6

    1 Available Now!

  7. Walk-Thru Bath, Rear Bedroom
    • Length: 44 ft 10 in
    • Weight: 45200 lbs
    • Slides: 4
    • Sleeps: 6
Showing 1 - 7 of 7
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Mountain Aire Features:

Standard Features (2021)



  • Full-Paint Masterpiece™ Finish with Cut & Buff and Beta-Fusion Protection on Front Cap
  • Convex Exterior Mirrors with Remote Control, Defrost, Turn Signals and Side-view Cameras
  • Chrome Power Baggage Door Locks, Keyless Entrance Door with Touch Pad and Doorbell
  • Entrance Door with Automatic Step
  • Rear Hitch for Towing Car
  • Assist Handle at Entrance Door
  • Mud Flaps
  • Rear Protective Tow Guard with Stainless Steel Newmar Name Cutout
  • Undercoating
  • Hydraulic Leveling Jacks
  • Stainless Steel Exterior Trim Pieces and Entrance Door Kick Panel
  • Hammock Backer
  • Storage Bins in Pegboard Compartment


  • Patio Hammock Package
  • Stainless Steel Trim Kit for Exterior Compartment Doors
  • Flagpole Bracket
  • Large Storage Tray with Access from One Side
  • Pass-through Storage Tray with Access from Either Side
  • Power Pass-through Storage Tray with Access from Either Side


  • Fiberglass Roof and Intergrated Gutter Rail
  • Gelcoated Fiberglass Exterior Sidewalls, Front and Rear Caps
  • Aluminum-Frame Sidewalls & Roof Construction,16" on Center
  • 5/8" Foam Insulation Laminated in Sidewalls & Ceiling
  • Polar Pak R19 Batten Insulation on Roof
  • Automatic Mechanical Lock Arms on Non Hydraulic Slideout Rooms-Paddle Style
  • Egress Door with Ladder System


  • Spartan® K3 Tag Axle 500 Hp on 41’ Floor Plans
  • Phone and Radio Controls on Steering Wheel on Spartan® Chassis
  • Air Leveling System
  • Aluminum Wheels
  • Electronic Chassis Information Center in Dash
  • Electronic Stability Control
  • Cruise Control
  • Comfort Drive™ Steering with Power Column &Adjustable Control
  • Recessed Fuel Fills with Crossover to Fill from Either Side
  • Back-Up Alarm
  • Anti-Lock Braking System
  • Chassis Battery Disconnect
  • Automatic Headlights On/Off
  • Push Button Engine Start
  • Glass Dash Instrumental Panel
  • OnGuard™ Collision Mitigation Adaptive Cruise System with Adj. Following Distance Control on Spartan® Chassis
  • Tire Pressure Monitoring on Tag Axle Chassis
  • Mobileye® Lane Tracking and Lane Departure Warning System
  • Spartan® K3, Tag Axle, 500 Hp, 45’ Mountain Aire


  • Curt Spectrum Integrated Brake Control on Spartan® Chassis

Mechanical and Electrical

Windows, Awnings, and Vents

  • Frameless Double-Pane Tinted Safety Glass Windows
  • Fan-Tastic® Vent with Rain Sensor in Kitchen, Bathroom and Enclosed Stool Room
  • Hardwood Louvered Cover on Fantastic® Vent in Kitchen
  • Skylight Above Shower*
  • Girard Package-Two Nova Side Awnings, Slideout Covers, Entrance Door & Power Window Awnings
  • One Piece Tinted Windshield
  • Driver Side Power Window
  • Large Non-Ventilated Living Room and Dinette Windows


  • Bunk Windows*
  • Kitchen Window

Air Conditioning and Heating

  • Three 15M Penguin™ Heat Pump Central Air Conditioners with Remote Control Thermostat
  • Hydronic Zone Diesel Heat with Continuous Hot Water
  • Dash Heater and Air Conditioner
  • Driver & Passenger Dash Overhead Ventilation System
  • Wall Mounted Sensors for Heating and Air Conditioning
  • Roof Air Conditioning Drainage System
  • Electric Radiant Heat Installed Below Main Floor Tile


  • 12.5 Kw Cummins Onan® Diesel Generator
  • 50 Amp Electrical Service with Flexible Cord with Automatic Transfer Switch
  • Six 6-Volt House Batteries
  • Battery Disconnect Switch for House Battery
  • 10 Watt Solar Panel to Charge Chassis Battery
  • 3000 Watt True Sine Inverter
  • 12 Volt Auxiliary Receptacle on Dashboard
  • Emergency Engine Start Switch
  • Engine Block Heater
  • Energy Management System
  • Exterior Security Lights
  • Mid-ship Side Turn Signals
  • LED Lights Recessed in Ceiling and Underneath Overhead Cabinets
  • Accent Lights in Feature Ceiling, Slideout Fascia Trim, Lambrequins
  • LED Lighting in Pull-Out Pantry, Kitchen and Bathroom Base Cabinets
  • LED Lights in Exterior Storage Compartments on Automatic Switches
  • LED Lights Installed Under Door Side Slideouts
  • Lights in Wardrobes
  • Manually Operated Hold-To-Run Slideout Switch
  • Automatic Generator Start on Low Battery or Temperature Setting
  • Cable TV Connection
  • Interior Courtesy Lights
  • USB Charger at Dinette & Bedroom Nightstand
  • USB Outlet at Dash for Driver Use
  • Power Rewind Wheel with 50’ Cord*
  • Recessed Docking Lights
  • KIB Touch Screen Interior Light and Shade Controls
  • Secondary Multiple Touch Screen in Bedroom
  • Silverleaf® Multiplex Electrical Wiring System
  • Solar Prep with Six Gauge Wire from Roof to House Battery
  • Spare Fuses in Chassis and House Fuse Panels
  • Wireless Phone Charger Pad in Driver Area
  • Wireless Charging Mat Built into Passenger Console
  • 110 Volt Recept in Bed Overhead with Two Pass-Through Ports
  • 110 Volt/USB Outlet at Head of Each Bunk*
  • Dimmable with Adjustable Aim Reading Lights at Head of Bed
  • Transfer Switch with Surge Protector


  • LED Strip Lighting Installed Under Off Door Side Slideouts
  • Four Flexible 100 Watt Solar Panels on Roof


  • Demand Water System
  • Sewage Holding Tank Rinse
  • Dometic® 321 China Bowl Stool or Macerator Stool*
  • Aqua Miser Shower System
  • Tiled Shower Walls and Floors with Glass Door
  • Soap Dispenser in Shower
  • Fold-Down Shower Seat
  • Water Filter for Entire Unit
  • Exterior Shower
  • Auto Fill for Fresh Water Tank
  • Power Water Hose Reel
  • Hot Water Line to Generator Area*


  • Assist Handle in Shower
  • RV Sanicon Turbo System


Cabinets and Furniture

  • Bermuda Glazed Maple Hardwood Cabinets with Raised Panel Doors with Matte Finish
  • Concealed Hinges on Cabinet Doors
  • Super Polished Solid Surface Countertop in Kitchen with Undermounted Stainless Steel Sink and Sink Covers
  • Lifts on Bed Top
  • Passenger Seat Workstation
  • Super Polished Solid Surface Countertop in Bathroom and Bedroom
  • Pull-Out Pantry Shelves
  • Soft Close Cabinet Doors*
  • Drawers with Dovetail Sides with Self-Closing Full Extension Ball Bearing Guides
  • Villa Ultraleather® Sofa and Driver/Passenger Seats with Integrated Seat Belts
  • Driver Seat with Vibration for Haptic Feedback
  • Heated Front Seats with Power-Lumbar, Recline, Footrest & Queen Sized Passenger Seat
  • Push-to-release Drawer Slides in Pantry
  • Plush Pillow Top Mattress
  • Cedar Paneling in Bedroom Wardrobe
  • Extended Rotation Concealed Hinge for Washer/Dryer Cabinet Door
  • Side Folding Hide-A-Bed Sofa with Memory Foam Mattress*
  • Chaise Lounge-Off Door Side, Dormi Sofa-Door Side*
  • Chaise Lounge-Off Door Side, Hide-A-Bed Sofa with Memory Foam Mattress-Door Side*
  • Full Height Wardrobes Beside Lav*
  • Mesh Cell Phone Holder at Each Bunk Bed*
  • Molded Silverware Divider Tray


  • Carmel Glazed Maple Hardwood Cabinets with Raised Panel Doors with High Gloss or Matte Finish
  • Bermuda Glazed Hardwood Cabinets with Raised Panel Doors-High Gloss
  • Wicker Glazed Maple Cabinets with Raised Panel Doors-High Gloss or Matte Finish
  • Sable Maple Hardwood Cabinets with Raised Panel Doors-High Gloss or Matte Finish
  • Dinette with Rollaway Table
  • Buffet/Dinette with Rollaway Table, Two Fixed/Two Folding Chairs
  • Sleep Number® R5 Radius Corner Air Mattress
  • Power Extenda Flex Dinette
  • Buffet Dinette
  • Combination Desk/Dinette with Rollaway Table, Two Fixed/Two Folding Chairs
  • Combination Desk/Dinette with Buffet Table, Two Fixed/Two Folding Chairs
  • Power Incline Retracting Bed Base with Sleep Number® R5 Air Mattress
  • Power Incline Head of Bed with Sleep Number® R5 Air Mattress
  • Euro Booth Dinette and Two Folding Chairs
  • Two Recliners with Lampstand and Reading Lights
  • 74” Hide-A-Bed with Two Ottomans and Jackknife Sofa
  • 84” Hide-A-Bed with Two Ottomans and Jackknife Sofa
  • 87” Power Extenda L with Chaise Lounge
  • 87” Side Folding Hide-A-Bed with Two Ottomans and Jackknife Sofa
  • Chaise Lounge/Euro Booth Dinette Ensemble with Two Table Leaves & Two Folding Chairs
  • Fireplace with 50” 4K TV on Lift
  • Powered Theater Seating 87” with Reading Lights and Lighted Cup Holders


  • Stainless Steel 30” Convection Microwave with Recessed Three-Burner Gas Cooktop
  • Air Horns
  • Whirlpool® 19.7 Refrigerator
  • Splendid Two-Piece Stacked Washer/Dryer
  • Dometic® 2.47 Cf. Freezer on Pull-out Tray in Exterior Baggage Compartment*
  • Dometic® 3.0 Cf Freezer on Pull-out Tray in Exterior Baggage Compartment*
  • Flush Gas Cooktop Cover of Matching Countertop Material
  • Fireplace in Living Area*
  • Central Vacuum with Tool Kit


  • All Electric Recessed Mount Induction Cooktop and 8 AGM Batteries
  • Dishwasher in Drawer with Stainless Steel Front


  • Designer Feature Ceiling and Cathedral Ceiling with Added Height on Rear-bath Floor Plans*
  • Lighted Mirror in Bathrooms
  • Tile Floor in Kitchen, Bathroom, Bedroom and Living Area
  • Auto Motion Power Shades and Lambrequins
  • Auto Motion Power Shades for Windshield and Driver/Passenger Side Windows
  • Hardwood Window Sills
  • Hardwood Raised Panel Interior Passage Doors
  • Flush Handles on Swinging Bath Doors
  • Interior Assist Handle at Main Entry Door
  • Quilted Bedspread with Accent Pillow
  • Safe Located in Bedroom Wardrobe
  • Wastebasket in Kitchen Base Under Sink
  • Maximized Shoe Storage Shelves Recessed in Rear of Wardrobe


Audio and Video

  • Samsung® LED TV and Sony® Blu-ray Disc Player in Living and Bedroom Areas* (TV Sizes Vary Per Floor Plan)
  • Samsung® 43” 4K LED TV in Front Overhead
  • Samsung® 50” 4K LED TV on Televator in Living Area*
  • Bose® 500 Subwoofer
  • Bose® 700 SoundTouch Soundbar in Living Room
  • Xite Dash Radio, 10” Dual Monitor with Rand McNally Navigation
  • Xite HD 360 Camera System with Predictive Grid Lines and Tri-View Rear Camera
  • Rear-view Color Monitor System with Audio
  • Winegard Rayzar Automatic Digital TV Antenna
  • Satellite Dish Prep on Roof
  • Two Bedroom Radio Speakers
  • TV Jack and 110 Volt Recept in Door Side Exterior Storage Compartment
  • Cat 6 TV Cables
  • Infrared Repeater System to Operate Audio/Visual Components
  • WiFiRanger SkyPro Pack Router
  • 10 Bc Fire Extinguisher, Smoke Detector, Propane and Carbon Monoxide Detector
  • Remote Navigation Programming via SD Card


  • Sirius Satellite Radio Capability (Does Not Include Monthly Subscription)
  • Exterior Entertainment Center in Sidewall with Samsung® 43” 4K LED TV and Soundbar
  • Exterior Entertainment Center in Storage Compartment with Samsung® 43” 4K LED TV & Soundbar
  • Winegard Automatic In-motion Dome Satellite Dish
  • Winegard Automatic Open Face Satellite Dish
  • Winegard Automatic Open Face SWM Satellite Dish
  • Winegard Cellular In-motion Wifi
  • Two 19” Skyworth TV/DVD Monitors at Each Bunk*
  • Extra Monitor on Passenger Side
  • Rear Camera (2) Prep for Use with Stacker Trailer
  • WiFiRanger SkyPro LTE Cellular Router
  • Universal Toll Module

See us for a complete list of features and available options!

All standard features and specifications are subject to change.

All warranty info is typically reserved for new units and is subject to specific terms and conditions. See us for more details.


Newmar is a company built around the Christian faith, specifically the beginning of the Mennonite faith in 1525 under the guidance of Ulrich Zwingli, and the founding of the Amish fellowship under Jacob Amman in 1693.


At Newmar, we believe that a motor coach is more than just a vehicle, it’s a passport to countless hours of fun and a lifelong memories taken from quality time spent with family and friends.


For over 50 years, we’ve applied our principles to the creation of motor coaches that have allowed people all over the world to live the RV lifestyle. And we’ll continue to so for countless generations to come. It’s why we take pride in every rivet, weld, and mechanical function.