2019 Newmar Mountain Aire 4551 - 2019 Mountain Aire 4551
For Sale in , FL.

Price: $390,000
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  • Stock #2019 Mountain Aire 4551
  • Year2019
  • ManufacturerNewmar
  • MakeNewmar
  • ModelMountain Aire
  • Floorplan4551
  • TypeDiesel Pusher
  • ConditionUsed
  • Mileage23,000
  • Length44' 0"
  • VIN4VZVU1E97KC085801
  • Price$390,000.00
  • ChassisFreightliner SL Series
  • Engine ManufacturerCummins
  • Engine ModelI6 Diesel Pusher 11.9L 500HP
  • Fuel TypeDiesel
  • InteriorPallisades
  • ExteriorCustom FBP
  • Sleeps8
  • Water Capacity (Fresh)105 gal
  • Water Capacity (Black)45 gal
  • Water Capacity (Grey)65 gal
  • Air Conditioners1
  • A/C Spec45000, BTU's
  • GVWR54,000 lbs
  • Slideouts3
  • Dry Weight44,900 lbs
  • Payload Capacity9,100 lbs
  • Tow/Hitch Weight15,000 lbs

This One Owner, Custom Ordered, 2019 Mountain Aire 4551 is a Triple Full Wall Slide-Out, Bath and a Half, All Electric Motor Home, powered by a 500hp Cummins ISX Diesel sitting on a Spartan K3 Chassis with a passive steer tag axle, Comfort Drive Steering with the HWH Hydraulic Leveling Control System, and is mated to an Allison MH4000 Transmission.

She looks stunning with her Special Order Full Body Paint, Palisade Interior Decor, Bermuda Glazed Maple Matt HD cabinetry and her Polished Aluminum Wheels.

She has over $63K in Newmar optional features – too many to list but they are included in the MSRP.

Cockpit features include a Power Driver’s Window, Villa Ultraleather Heated Front Seats With Power- Lumbar, Recline, Footrest & Queen Sized Passenger Seat (w/Work Station), SMART 9 Function Steering Wheel, Convex Ext. Chrome Mirrors w/Defrost & Remote Control w/Turn Signal Indicators, Trip Travel Information, Electronic Chassis Information Center In Dash, On Guard Collision Mitigation Active Cruise System, Electronic Speed Control, Rear View Color Monitor System With Audio, HD 360 Camera System, In-Dash Xite Radio/CD Player With Harman/JBL 360 Watt Sound System With Subwoofer, Sirius Radio Capability, 10" Monitor with Rand McNally Navigation, Extra Monitor on Passenger Side, and a Custom Windshield Shade.


The interior has creature comforts like a Designer Ceiling w/Recessed and Accent LED Lights, KIB Touch Screen Interior Light and Shade Controls, Auto Motion Power Patio Awnings, Window Shades & Lambrequins (w/Accent Lights), King Aire Style Heated Tile Floor and London Aire Wall Sconces.


A/V features include a 43” LED TV in Front Overhead, Bose 300 Subwoofer and Bose 300 Touch Sound Bar (w/Rear Satellite Bose Speakers), Sony LED TV & Blu-Ray Disk Player In Living Room (on Televator), Sony LED TV in the Bedroom, TV/Soundbar Exterior Entertainment Center, an Infared A/V Repeater System, a Winegard Auto Open Face Satellite Dish, a Winegard In-Motion Satellite Dish, a Winegard Rayzar Automatic Digital TV Antenna, and Peplink Pepwave WiFi Router, and Prep for Ground Tripod Satellite Dish.


 Furniture is made up of a H-A-B w/Air Mattress, Combination Desk/Dinette w/Buffet Table and Palliser Flicks Power Theatre Seats w/lamp stands and Reading Lights.


The Galley has High Polished Solid Surface Countertops, an Essex Style Single Deep Kitchen Sink, Flush Mounted Removable Induction Cooktop, GE Advantium Convection Microwave, Stainless Steel Whirlpool Residential Refrigerator, Dishwasher in a Drawer, Kitchen Window, Fantastic Vent with Rain Sensor, and Central Vacuum.

Past the ½ bath is the Bedroom with a Power Incline Retracting Bed with Sleep Number R5 Air Mattress, Safe, Overhead Cabinets, a Dresser, a Cedar Wardrobe with Lights, the TV System and a Secondary Silverleaf Multiple Touch Screen.

The Bathroom has High Polished Solid Surface Countertops, Large Tiled Shower Walls w/Glass Door, Fold Down Shower Seat, Assist Handle, Swash 1400 Bidet (in both Bathrooms), Upgraded Moen Bathroom Hardware, and the Whirlpool Stacked Washer and Dryer.

The Owner also installed a PPO Innovations Smart Wet Bay – Wastewater Management System (a self-contained monitoring and auto dumping system).

The coach has a Whole Coach Water Filter System too as well as the RV SaniCon Turbo Macerator System.

Heating and Cooling is provided by (3) 15K BTU Penguin Heat Pump Central Air Conditioners with Remote Control Thermostats and Wall Mounted Sensors and a 50K BTU Oasis Diesel Hydronic Heat and Hot Water System (w/On-Demand Water).

Key technical features include the Energy Management System, a 50 Amp Electrical Service With 50’ Power Rewind Reel And Automatic Transfer Switch w/Surge Protector, 8 - 6 Volt House Batteries, a 3000 Watt True Sine Inverter, a 12.5kW Onan Diesel Generator with Auto Start On Low Battery Or Temperature Setting, Silverleaf Multiplex Electrical Wiring System Remote Internet System), 10 Watt Solar Panel to Charge Chassis Battery, Power Water Hose Reel, and a Hot Water Line to Generator.

Some of the useful/attractive exterior features are an Entrance Door w/Auto Step, Touch Pad and Doorbell, an Egress Door w/Ladder, Recessed Fuel Fills with cross over to fill from either side, Recessed Docking Lights, Battery Slide Out Tray, Power Storage Trays in Bay 2 & 3, Full Pass through Slide Tray, Stainless Steel Trim on Baggage Doors and Chrome baggage door handles, and Automatic Mechanical Lock Arms on Non Hydraulic Slideout Rooms.


 And for those Outdoor Living moments she has two Girard G2000 Power Side Awnings with Wind Sensor, Remote Control & LED Lights, 2 Patio Hammocks, Exterior Sidewall Entertainment Center w/43" LED TV and Bose Soundbar, Dometic 3.77 Cu. Ft Freezer on Slide Out Tray, Dometic Slideout Covers and LED lights under the PS slideouts and a Flag Pole Bracket.


The Owners also added Tyron Safety Bands, and a Hydralift (for Golf Carts or Motorcycles) and had all the Ultraleather recently replaced by Newmar.

She is a beautiful, loaded and meticulously maintained example of a premium luxury coach.  Definitely a coach to seriously consider.

Motor Home Finders

, Florida

CONTACT Motor Home Finders



  • Microwave
  • Oven
  • Refrigerator
  • Stove Top Burner
  • Water Heater


  • Air Conditioning
  • Auxiliary Battery
  • Generator
  • Solar Panels


  • CD Player
  • CO Detector
  • DVD Player
  • GPS Navigation
  • LP Detector
  • Smoke Detector
  • Surround Sound System
  • TV


  • Air Assist Suspension
  • Awning
  • Backup Monitor
  • External Shower
  • Hitch
  • Leveling Jacks
  • Power Entrance Step
  • Power Roof Vent
  • Skylight
  • Slideout
  • Slide-out Awning


  • Central Vacuum
  • Free Standing Dinette w/Chairs
  • King Size Bed
  • Medicine Cabinet
  • Roof Vents
  • Shower
  • Toilet

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