2018 Newmar Mountain Aire 4047 | 40' Tag Axle, 500HP | 2018 Clearance!

New Diesel Pusher in Winter Garden, Florida 34787


Looking for power? This 40' luxury coach sits on a Spartan® K3 chassis with the STAR platform, fueled by a Cummins® 500 horsepower diesel engine, and complemented with an Allison 4000 auto tran. This thing will run!

This custom Mountain Aire is equipped with State of the Art Comfort Drive with the Rear Steer Passive TAG Axle, a 360 degree camera system and the Adaptive Cruise with Collision Avoidance System. Don’t let the 40-foot length fool you. Although this Mountain Aire is compact, having one full-wall slide and two regular slide-outs, there is plenty counter space, cabinet space, and room to sprawl out and relax!

Check out the upgrades below, then give us a call at (844) 335-3010. 

  • Upgraded Climate Control: All electric coach with heated floors, (3) oversized central 15K roof ACs with heat pumps. Hydronic heat!
  • Upgraded Appliances & Electronics: Residential Refrigerator, Induction Cook Top, Central Vacuum, Dishwasher, Washer/Dryer, Basement Freezer. Xite Radio with Navigation, Front 40" TV, Exterior 40" TV and Entertainment, WiFi Ranger Sky3 Router, WiFi Cellular Prep, Multi Dish Prep, Solar Prep, Sirius Prep, Surge Protector.                                                                                                                
  • Upgraded Comforts: Window Awning Pac, Power MCD Shades, Heated Seats, Sleep Number mattress, Docking Lights, LEDs Under Slide, Safe, Keyless Entry with Stainless Steel Trim, (3) Slide Trays.

Luxury Coaches are What We Do!


Independence RV has been at the same location for over 30 years. We're lean and ready to compete for your business by offering the best equipment and the best deals. We are not allowed (by Newmar) to advertise our discount pricing on current inventory, so please contact us for a quote. Toll Free (844) 335-3010

Platinum Service and Parts Center: One of Newmars Top Service Centers. We are a Big Coach Store with Big Coach Master Techs and Big Coach Parts Department.


Parts and Accessories: Bike Lifts, SAT Systems, Towing and Braking Systems, Custom Lighting.


**Request Factory Sticker from Our Sales Department**

      **Listed Equipment is for Most of our Vehicles**


  • Appliances
    DryerEnclosed Water TankIcemakerMicrowaveOvenRefrigeratorResidential RefrigeratorStainless AppliancesStove Top BurnerWasherWater Heater
  • Electrical
    50 Amp ServiceAir ConditioningAuxiliary BatteryBatteriesConverterFantastic FanGeneratorInverterSlide-out Battery TraySolar Panels
  • Equipment
    AM/FM/CDBackup CameraBlu-Ray PlayerCD PlayerCO DetectorDVD PlayerGPS NavigationHeat PumpLED HDTVLP DetectorSatellite PreppedSmoke DetectorSurround Sound SystemTelevator TVTVTV Antenna
  • Exterior
    Air Assist SuspensionAlloy WheelsAutomatic Leveling JacksAwningBackup MonitorBlack Tank FlushCustom PaintDiamond Shield Paint Protection FilmEgress DoorExterior SpeakersExterior StereoExternal ShowerFiberglass SidewallsFull Body PaintHitchKeyless EntryLeveling JacksOutside Entertainment CenterPower AwningPower Entrance StepPower Roof VentRoof VentSide View CamerasSkylightSlideoutSlide-out AwningThermal Pane WindowsTinted Windows
  • Interior/Furnishings
    6-Way Power Driver's SeatAir MattressBath & 1/2Central VacuumDay/Night ShadesFree Standing Dinette w/ChairsGlass Shower DoorHeated FloorKing Size BedMedicine CabinetNon-Smoking UnitPantryRecliner(s)Roof VentsSelf ContainedShowerToilet

Seller Info

Independence RV Sales

12705 W. Colonial Drive

Winter Garden, Florida 34787

877-580-2789 Request More Info

Unit Specs

  • In Stock 
  • Stock #9320
  • Year2018
  • ManufacturerNewmar
  • Make Newmar
  • Model Mountain Aire
  • Floorplan4047 | 40' Tag Axle, 500HP | 2018 Clearance!
  • Floorplan LayoutBath and a Half
  • Type Diesel Pusher
  • ConditionNew
  • Mileage1,161 miles
  • Length40' 10"
  • MSRP$615,241.00
  • Sale Price$439,680.00 Make Offer
  • ChassisSpartan K3
  • Engine ManufacturerCummins
  • Engine ModelISX 11.9L 500HP
  • Fuel TypeDiesel
  • Transmission SpecAllison 4000!
  • Interior ColorHawthorn w/ Essex Features, Bermuda Maple Glazed C
  • Exterior ColorCustom King Aire Ashford. This coach pops!
  • Sleeps4
  • Water Capacity (Fresh)105
  • Water Capacity (Black)45
  • Water Capacity (Grey)65
  • Air Conditioners3
  • A/C Spec15k W/Heat Pumps
  • GVWR54,000 lbs
  • Slideouts3
  • Payload Capacity10300
  • Dry Weight43,700 lbs
  • Tow/Hitch Weight15000
  • # Axles2
  • StatusAvailable

Request More Info

Independence RV Sales

12705 W. Colonial Drive
Winter Garden, Florida 34787

Phone: 407-391-1325
Toll-Free: 877-580-2789
Fax: 407-573-0127