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2027 Newmar Mountain Aire 4551 Crimson Slate

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    Description

    2027 Newmar Mountain Aire 4551 Crimson Slate

    2027 Mountain Aire

    Luxurious.  Adventurous. Dependable.

    Experience unrestricted luxury in the 2027 Mountain Aire, where the perfect balance of power, size, and premium amenities transforms every journey. With a 525 HP Cummins diesel engine, multiple length options, and exclusive features like Comfort Drive™ and a 38' passive tag axle, this coach delivers exceptional maneuverability, stability, and confidence to go farther than ever before. Thoughtfully designed for comfort without compromise, the Mountain Aire offers spacious living, refined entertaining, and Newmar’s trusted.

    Explore the Mountain Aire Difference

    The 2027 Mountain Aire elevates luxury motor coaching through refined detail and cutting-edge technology. Perfectly engineered for those who seek uncompromising comfort and proven durability wherever the journey leads. Download the brochure to explore more.

    LUXURY WITHOUT LIMITATIONS

    Where Power and Comfort Converge
    Elevate every moment with expertly crafted décor, immersive entertainment features, and striking exterior graphics that make the 2027 Mountain Aire unforgettable inside and out. Refined finishes, elegant furnishings, and advanced media integration create a sophisticated living space designed for both relaxation and entertaining. Outside, bold, modern graphics complemented by Newmar's exclusive full-paint Masterpiece Finish™, ensure you arrive in style, turning heads at every destination.

    Finishes & Décors
    Make a statement everywhere you travel with our exclusive Full-Paint Masterpiece™ Finish exterior. Inside, discover thoughtful design enhancements including Italian leather furnishings and optional theater seating with adjustable headrests, plus Newmar's renowned hardwood cabinetry available in both suede and high-gloss finishes that create a sophisticated home away from home on every adventure.

    Comfort & Sophistication
    Experience exceptional driving confidence with Comfort Drive™ Adaptive Steering and the STAR Foundation’s rock-solid stability. Stay seamlessly connected through the 15" high-resolution glass dash display, the ATC control system with Bluetooth® connectivity to the Newmar App, and Starlink® Internet System that keeps you online wherever the journey takes you.

    World Class Entertainment
    Enjoy world‑class entertainment wherever the journey takes you. Samsung® LED TVs paired with premium audio create an immersive experience throughout the coach, while the optional exterior entertainment center extends the enjoyment outdoors. With the Starlink Internet System, streaming your favorite shows, staying connected, or enjoying on‑demand content is seamless—even in remote destinations—bringing premium entertainment and powerful connectivity together like never before.

    Features May Include:

    Cockpit

    • Industry-First Comfort Drive™ Adaptive Steering
    • Heated Driver and Passenger Seats with Power Lumbar and Recline, Footrest
    • Mobileye® Lane Tracking and Lane Departure System
    • OnGuard™ Collision Mitigation Adaptive Cruise System with Adjustable Following Distance Control
    • Xite Dash Radio with Apple CarPlay®, 9" Dual Monitors with Nav-N-Go Navigation System 
    • Passenger Side Monitor
    • Driver & Passenger Wireless Charging Mats
    • Doorbell Camera System at Entrance Door Connected to Remote App

    Cabin

    • Opposing 87 in Hide-A-Bed Sofa and 68 in Jack-Knife Sofa in Italian Leather
    • Italian Leather Powered Theater Seating with Adjustable Headrests (Optional)
    • 50 in Samsung® 4K LED TV on Televator
    • Maple Cabinet Doors in High Gloss or Suede Finish
    • Three 15K BTU Heat Pump Air Conditioners
    • ATC Control Panel Connects via Bluetooth to Newmar App
    • Starlink Internet Service (Subscription Required)
    • Pet Package (Optional)

    Galley & Dinette

    • Italian Leather Euro Booth Dinette (Two Additional Dinette Optional Available)
    • Samsung® Refrigerator with Icemaker
    • All-Electric Flush Mount Induction Cooktop
    • 30 in Stainless Steel Convection Microwave
    • Super Polished Solid-Surface Countertops
    • Pantry With Large Drawer for Pots and Pans
    • Dishwasher with Wood Panel Front (Optional)

    Bedroom

    • King-Size Bed with Plush Pillow Top Mattress
    • 43 in Samsung® LED TV
    • Shirt Wardrobe
    • Dresser
    • Built In Safe

    Bathroom

    • Bath and a Half Floor Plan
    • 50 in x 34 in Shower with Skylight
    • Super-Polished Solid-Surface Countertop
    • Aqua Miser® Shower System
    • Vanity with Dual Sinks and In-Mirror Lights
    • Chinook Dual Loop Heat Continuous Hot Water
    • Large Wardrobe with Adjustable Shelves
    • Stacked Two-Piece Splendide® Washer and Dryer

    Exterior & Storage

    • Industry-Exclusive Full-Paint Masterpiece Finish with Clearcoat and Cut and Buff
    • Exterior RGB LED Lights Below Perimeter of Unit
    • Self Close Baggage Doors
    • Girard® Dual Nova Side Awnings, Slideout Covers, Entrance Door & Power Window Awnings
    • Exterior Entertainment Center with Samsung® 4K LED TV & Bose® Soundbar
    • 3.0 Cu. Ft. Dometic® Freezer on Pullout Tray in Exterior Compartment
    • Onyx Package (Optional)
    • Four Flexible 120W Solar Panels on Roof (Optional)

    Exterior
    STANDARD

    • Entrance Door Assist Handle
    • Mud Flaps
    • Undercoating
    • Rear Protective Tow Guard with Stainless Newmar Name Cutout
    • Rear Hitch for Towing Car
    • Convex Chrome Exterior Mirrors with Defrost, Remote Control, Turn Signal Indicators and Side View Cameras
    • Stainless Steel Exterior Trim Pieces and Entrance Door Kick Panel
    • Hydraulic Leveling Jacks
    • Front Cap Beta Fusion Protection
    • Power Chrome Baggage Door Locks, Keyless Entrance Door with Touchpad and Door Bell
    • Storage Bins in Pegboard Compartment
    • Illuminated Newmar Badge on Front Grill
    • Baggage Door Close Assist

    OPTIONAL

    • Windshield Temporary Protection (For Transport Only)
    • Stainless Steel Trim Kit For Exterior Compartment Doors
    • 40 x 90 Powered Storage Tray, Bay 2
    • 43 x 56 Non-Powered Storage Tray, Bay 3
    • Flag Pole Bracket
    • Onyx Package with Black Aluminum Powder Coat Trim Kit for Exterior Compartment Doors
    • 42 x 91 Non-Powered Storage Tray, Bay 2
    • 24 x 58 Powered Storage Tray, Bay 2
    • 24 x 56 Non-Powered Storage Tray, Bay 3
    • 24 x 58 Powered Storage Tray, Bay 3
    • 24 x 56 Non-Powered Storage Tray, Bay 2
    • 26 x 91 Non-Powered Storage Tray, Bay 2
    • 43 x 56 Non-Powered Storage Tray, Bay 4
    • 42 x 91 Non-Powered Storage Tray, Bay 3
    • 40 x 90 Powered Storage Tray, Bay 3
    • 26 x 90 Powered Storage Tray, Bay 2

    Construction
    STANDARD

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

    Chassis
    STANDARD

    • Anti-Lock Braking System
    • Back-Up Alarm
    • Cruise Control
    • Aluminum Wheels
    • Recessed Fuel Fills with Cross Over to Fill from Either Side
    • Electronic Chassis Information Center in Dash
    • Air Leveling Control System
    • Electronic Stability Control
    • Battery Disconnect for Chassis Battery
    • Glass Dash Instrument Panel
    • Automatic On/Off Headlights
    • Push Button Engine Start
    • Tire Pressures Monitoring on Chassis
    • Auto Rain Sense Wipers
    • Seat Belt Warning Indicator in Dash Display
    • Cockpit Seat Occupancy Sensors
    • Cockpit Seat Belts Latch Sensors
    • Comfort Drive™ Adaptive Steering with Power Column and Adjustable Control
    • Spartan® K3, Tag Axle, 525 HP, 45' Mountain Aire (This is the Standard Chassis)
    • OnGuard™ Collision Mitigation Adaptive Cruise System with Adjustable Following Distance Control
    • Spartan® K3, Tag Axle, 525 HP, 41' Mountain Aire (This is the Standard Chassis)
    • Mobileye® Lane Tracking and Departure System
    • Valid Digital Glare Free Dash on Spartan® Chassis
    • Nine Function Steering Wheel with Switch Pod in Center on Spartan® Chassis
    • Valor Generation 3 TPMS System on Spartan® Chassis
    • Spartan® K3, Tag Axle, 525 HP, 38' Mountain Aire (This is the Standard Chassis)

    OPTIONAL

    • Curt Spectrum Integrated Brake Control on Spartan® Chassis
    • Blind Spot Detection
    • Spartan® K3, Tag Axle, Tag Axle, 525 HP, Onyx Package, California Compliance
    • Spartan® K3, Tag Axle, 525 HP, 41' Mountain Aire, Onyx Package
    • Spartan® K3, Tag Axle, 525 HP, 41' Mountain Aire
    • Spartan® K3, Tag Axle, 525 HP, 45' Mountain Aire
    • Spartan® K3, Tag Axle, 525 HP, 38' Mountain Aire, Onyx Package
    • Spartan® K3, Tag Axle, Tag Axle, 525 HP, California Compliance
    • Spartan® K3, Tag Axle, 525 HP, 45' Mountain Aire (This is the Standard Chassis)
    • Spartan® K3, Tag Axle, 525 HP, 45' Mountain Aire, Onyx Package
    • Spartan® K3, Tag Axle, 525 HP, 38' Mountain Aire

    Windows, Awnings & Vents
    STANDARD

    • Power Window on Driver Side
    • One-Piece Tinted Windshield
    • Skylight Above Shower (Not Available on Rear Bath Floor Plans)
    • Frameless Double-Pane Tinted Safety-Glass Windows
    • Large Non-Ventilated Living Room and Dinette Windows
    • Kitchen Window
    • Fantastic Vent with Rain Sensor in Kitchen, Bathroom and Enclosed Stool Room
    • Girard® Dual Nova Side Awnings, Slideout Covers, Entrance Door and Power Window Awnings
    • Fantastic Vent with Hardwood Louver Cover in Kitchen

    Air Conditioning & Heating
    STANDARD

    • Dash Heater and Air Conditioner
    • Sensors Wall Mounted for Heating and Air Conditioning
    • Air Conditioning Drainage System for Roof
    • Driver and Passenger Dash Overhead Ventilation System
    • Three 15K BTU Heat Pump Air Conditioner with Remote Control Thermostat on 41' and 45' Floor Plans
    • Two 15K BTU Heat Pump Air Conditioner with Remote Control Thermostat on 38' Floor Plans
    • Chinook Dual Loop Heat with Continuous Hot Water
    • Electric Radiant Heat Installed Below Floor Tile

    Electrical
    STANDARD

    • Exterior Security Lights, One Installed on Each Side
    • Recessed Docking Lights
    • Lights in Wardrobes
    • Interior Courtesy Lights
    • Emergency Engine Start Switch
    • Cable TV Connection
    • Midship Side Turn Signals
    • 12V Recept Auxiliary on Dashboard
    • Engine Block Heater
    • 10W Solar Panel to Charge Chassis Battery
    • Power Rewind Reel with 50' Cord
    • LED Lights Recessed in Ceiling and Underneath Overhead Cabinets
    • Energy Management System
    • Automatic Generator Start on Low Battery or Temperature Setting
    • Multiplex Electrical Wiring System
    • Slideout Switch Manually Operated
    • Battery Disconnect Switch for House Battery
    • 3000W Pure Sine Inverter
    • Accent Lights in Feature Ceiling, Lambrequins, Slideout Fascia Trim
    • USB Outlet at Dinette and Bedroom Night Stand
    • LED Lights in Exterior Storage Compartments on Automatic Switches
    • LED Lights Installed Under Door Side Slideouts
    • LED Lights in Pullout Pantry, Kitchen and Bathroom Base Cabinets
    • 50 Amp Electrical Service with Flexible Cord and Automatic Transfer Switch
    • Solar Prep with 6 Gauge Wire Ran from Roof to House Battery Compartment
    • Multiplex Lighting Control System
    • USB Outlet at Dash for Driver Use
    • Transfer Switch with Surge Protector
    • 110V/USB Recept at Head of Each Bunk Area (Floor Plan Specific)
    • Spare Fuses in Chassis Fuse Panel
    • Spare Fuses in House Fuse Panel
    • Wireless Charging Mat Built into Passenger Console
    • Dimmable Reading Lights at Head of Bed Feature Adjustable Arm
    • Wireless Phone Charger Pad in Driver Area
    • LED Lights Installed Under Off-Door Side Slideouts
    • Eight 6V AGM House Batteries
    • 110V Recept in Bed Overhead with Two Pass Through Ports
    • 10.1" Multiplex Monitor System in Center of Coach with Interior Lighting and HVAC Controls
    • Generator Start/Stop Function on Touchscreen in Water Bay Compartment
    • Dash Radio, Cameras and Monitors to Power Up from Both House Batteries and Ignition
    • Newmar App
    • 12.5 kW Cummins Onan® Diesel Generator on 41' and 45' Floor Plans
    • 10 kW Cummins Onan® Diesel Generator on 38' Floor Plans

    OPTIONAL

    • Four 120W Solar Panels Flexible on Roof
    • Exterior RGB LED Lights Below Perimeter of Unit
    • 640 AHR Lithionics® Lithium Ion Battery System with Two 3000W Pure Sine Inverters (UL Approved)
    • 960 AHR Lithionics® Lithium Ion Battery System with Two 3000W Pure Sine Inverters (UL Approved)

    Plumbing & Bath
    STANDARD

    • Exterior Shower Located on Off-Door Side
    • Sewage Holding Tank Rinse
    • Power Reel for Water Hose
    • Demand Water System
    • Water Filter for Entire Unit
    • Fold-Down Shower Seat (Floor Plan Specific)
    • Auto Fill for Fresh Water Tank
    • Hot Water Line to Generator Area
    • Bladder Tank for Water Pump System
    • Shower Soap Dispenser
    • Shower Tiled Walls and Floors with Glass Door
    • Grey Holding Tank Rinse
    • Dometic® 321 China Bowl or Macerator China Bowl Stool
    • Aqua Miser® Shower System

    OPTIONAL

    • Assist Handle in Shower
    • RV Sanicon Turbo System

    Cabinets & Furniture
    STANDARD

    • Super Polished Solid-Surface Countertop in Kitchen, Undermounted Stainless Steel Sink and Sink Covers
    • Lifts on Bed Top
    • Molded Silverware Divider Tray
    • Heated Driver and Passenger Seats with Power Lumbar, Recline, Footrest and Standard Width Passenger Seat
    • Plush Pillow Top Mattress
    • Pullout Pantry Shelves (See Floor Plans for Availability)
    • Super Polished Solid-Surface Countertop in Bathroom and Bedroom
    • Concealed Cabinet Door Hinges
    • Cabinet Drawers With Dovetail Sides With Self Closing Full Extension Ball Bearing Guides
    • Power Incline Retractable Bed Base with Air Mattress on 3825 Floor Plan
    • Flush Cooktop with Cover that Matches Countertop
    • Side Hide-A-Bed Sofa with Memory Foam Mattress on Most Floor Plans
    • Full-Height Wardrobe (Floor Plan Specific)
    • Euro Booth Dinette with Two Table Leaves and Two Folding Chairs
    • Mesh Cell Phone Holder at Each Bunk Bed (Floor Plan Specific)
    • Soft-Close Cabinet Doors (Side Hinge Doors Only)
    • Push-to-Release Pantry Drawer Slides
    • Italian Leather Sofa and Front Seats with Integrated Seat Belts
    • Driver Seat with Vibration For Mobileye® System
    • Pantry with Space for Serving Trays/Bakeware
    • Driver and Passenger Seats with Power Headrest

    OPTIONAL

    • Air Mattress
    • Queen-Size Passenger Seat
    • Combo Desk Dinette with Buffet Table, Two Fixed and Two Folding Chairs
    • Front Overhead Cabinets Replaces TV
    • Two Ottomans (Not Available with Theater Seating)
    • Two Recliners with Reading Lights and Lampstand Replaces Hide-A-Bed Sofa and 62" Trifold Replaces Jackknife Sofa
    • Convertible Dinette with Two Fixed and Two Folding Chairs that Face to Window or Fore/Aft Seating (Excludes Floor Plan 4545)
    • 84" Powered Theater with Adjustable Headrests Seating Replaces Hide-A-Bed Sofa
    • 74" Powered Theater with Adjustable Headrests Seating Replaces Hide-A-Bed Sofa
    • Power Extenda Flex Dinette
    • 74" Powered Theater Seating (Replaces Jackknife Sofa)
    • Two Recliners with Reading Lights And Lampstand Replaces Side Hide-A-Bed Sofa, 68" Trifold Sofa Replaces Jackknife Sofa
    • 87" Powered Theater with Adjustable Headrests Seating Replaces Hide-A-Bed Sofa

    Appliances
    STANDARD

    • Air Horns
    • Central Vacuum with Tool Kit
    • All-Electric Induction Flush Mount Cooktop
    • Storage Shelf Above Freezer
    • Stacked Two-Piece Splendide® Washer and Dryer
    • 3.0 Cu. Ft. Dometic® Freezer on Pullout Tray in Exterior Compartment
    • 30" Stainless Steel Convection Microwave with Air Fryer Feature
    • Samsung® Refrigerator with Icemaker

    OPTIONAL

    • Beverage Center in Pantry
    • Dishwasher with Wood Panel Front

    Interior
    STANDARD

    • Fitted Bedspread and Accent Pillows
    • Interior Passage Hardwood Raised Panel Doors
    • Interior Assist Handle at Main Entry Door
    • Auto Motion Power Window Shades and Lambrequins
    • Auto Motion Power Shade at Windshield and Power Shades at Driver and Passenger Side Windows
    • Safe Located in Wardrobe
    • Tile Floor in Kitchen, Bathroom, Bedroom and Living Areas
    • Designer Feature Ceiling with Cathedral Ceiling and Added Height (Rear Bath Floor Plans)
    • Handle Flush on Swinging Bath Doors
    • Waste Basket in Kitchen Base Under Sink
    • Maximized Shoe Storage Shelves Recessed in Rear of Wardrobe (Floor Plan Specific)

    OPTIONAL

    • Pet Package: Food and Splash-Proof Water Pet Bowls, Retractable Pet Gate, Exterior Pet Lead Connection Point (Large and Small Pet Options)

    Audio, Video & Accessories
    STANDARD

    • Satellite Dish Prep on Roof
    • TV Jack and 110V Recept in Door-Side Exterior Storage Compartment
    • Infrared Repeater System to Operate Audio/Video Components
    • Cat 6 TV Cables
    • Xite HD 360 Camera System with Grid Lines and Tri-View Rear Camera
    • WiFiRanger Denali/Spruce LTE
    • Doorbell Camera System at Entrance Door Connected to Remote App
    • 10 BC Fire Extinguisher, Carbon Monoxide, Smoke Detectors
    • Starlink Internet System
    • 43" Samsung® 4K LED TV in Front Overhead
    • Samsung® LED TV in Living and Bedroom Areas (TV Sizes Vary per Floor Plan)
    • 50" Samsung® 4K LED TV on Televator in Living Area
    • Xite Dash Radio with Apple CarPlay®, 10" Dual Monitor with Nav-N-Go Navigation System
    • Exterior Entertainment Center with 43" Samsung® 4K LED TV and Soundbar
    • Bose® 500 Subwoofer
    • Bose® 900 Sound Touch Soundbar in Livingroom

    OPTIONAL

    • SiriusXM® Radio Capability with Antenna (Subscription Required)
    • Extra Monitor on Passenger Side
    • WiFi Everest System with Aspen Interior Router
    • Starlink Performance Internet System (Subscription Required)
    • Two Camera Rear Prep for Use with Stacker Trailer
    • Universal Toll Module
    • Winegard® Rayzar Automatic Digital TV Antenna

    Info

    Industry

    RV

    Make

    Newmar

    Model

    Mountain Aire 4551

    Trim

    Crimson Slate

    Year

    2027

    MSRP

    N/A

    Category

    Motorhome

    Subcategory

    Class A Diesel


    Specs

    Shower

    50 in x 34 in Shower with Skylight

    Sleeps

    5

    Length

    44 ft 10 in

    GVWR

    54000 lbs

    Fuel Capacity

    150 gal

    Fuel Type

    Diesel

    Interior

    Width: 95.5 in | Height: 83 in

    Beds

    Bed Size: King

    Furnace

    50000 btu

    Water Heater

    Chinook Dual Loop Heat Continuous Hot Water

    Washer/Dryer

    Stacked Two-Piece Splendide Washer and Dryer

    TVs

    43 in Samsung 4K LED TV in Front Overhead | 50 in Samsung 4K LED TV on Televator in Living Area | Exterior Entertainment Center with 43 in Samsung 4K LED TV and Soundbar

    Air Conditioner

    Two 15K BTU Heat Pump Air Conditioners

    Refrigerator

    Samsung Refrigerator with Icemaker

    Cooktop

    All-Electric Recessed-Mount Induction Cooktop

    Slides

    No. of Slides: 3

    Width (Ext)

    101.5 in

    Height (Ext)

    13 ft 02 in

    GCWR

    69000 lbs

    Torque

    1695 lb/ft

    Wheelbase

    294+TAG

    Axle Wt (GAWR) - Rear

    20000 lbs

    Axle Wt (GAWR) - Front

    20000 lbs

    Tires

    Tire Brand: Michelin

    Grey Water

    80.00 gal

    Black Water

    60.00 gal

    DEF Tank

    15 gal

    Fresh Water

    105.00 gal

    Floorplan

    4

    Chassis

    Spartan K3 Tag Axle