2026 Newmar Mountain Aire 3825

NewClass A|Stock #NMA2602|Located at Holiday World of Alvarado in Katy, TX
$772,794$909,169
Save $136,375

Newmar Mountain Aire Class A diesel motorhome 3825 highlights:

  • Bath and a Half

  • Euro Booth Dinette

  • King Bed

  • Whirlpool Refrigerator

  • Triple Slides

This motorhome has everything you need for a comfortable road trip! The master suite has a king bed slide for a good night's rest across from a dresser with a Samsung LED TV and shirt wardrobes on either side. Attached to the bedroom is your very own full rear bathroom which has a 42" x 35" angled shower next to a wardrobe with drawers and a Splendide washer and dryer next to the vanity sink. The chef will have everything they need to prepare delicious home cooked meals including a stainless steel 30" convection microwave with air fryer feature and a Whirlpool 19.7 cu. ft. refrigerator to keep the perishables fresh, plus the half bathroom is by the kitchen for quick bathroom breaks while cooking. Enjoy your meals at the Euro booth dinette (non-sleeper) and relax on the 74" hide-a-bed sofa while watching your favorite movies on the Samsung LED TV on power lift!

Explore the world in peak luxury with any one of these Newmar Mountain Aire Class A diesel motorhomes! They are exclusively built on a Spartan K3 tag axle chassis with a 525 HP and 1,695 lb./ft. of torque to make them easy to drive. Their industry-exclusive full paint Masterpiece Finish comes in four different color options each of which will turn heads down the highway. Hydraulic leveling jacks make set up quick and easy, and the fiberglass roof with integrated gutter rail will help to keep water away from your unit. The aluminum-frame sidewalls and roof construction are covered by the gel-coated fiberglass exterior sidewalls, front, and rear caps. You will also find finer amenities, features, and options all throughout the interiors. Come find the best one for you today!

Options:

  • DILLION GRAPHICS MADP

  • DISHWASHER IN A DRAWER

  • LITHIUM ION 640 W/2 3K INVRTRS

  • MONITOR ON PASSENGER SIDE

  • RV SANICON TURBO SYSTEM

  • SABLE/SUMMIT MPL-HDWD-HG

  • SIRIUS RADIO CAPABILITY

  • STARLINK INTERNET SYSTEM

  • THEATER SEATING 74'' ILO HAB

  • TRAY STORAGE 24X58 PWR B2

  • TRAY STORAGE 24X58 PWR B3

  • WIFI SYSTEM EVEREST W. ROUTER

Specifications

Length

38 ft 10 in

Dry weight

41,000 lbs

Sleeps

6 people

Slideouts

3

Unit features & options

  • Exterior Full-Paint Masterpiece Finish with Cut and Buff
  • Power Chrome Baggage Door Locks, Keyless Entrance Door With Touchpad and Door Bell
  • Entrance Door Assist Handle
  • Entrance Door Automatic Step
  • Convex Chrome Exterior Mirrors With Defrost, Remote Control, Turn Signal Indicators and Side View Cameras
  • Front Cap Beta Fusion Protection
  • Hydraulic Leveling Jacks
  • Mud Flaps
  • Newmar Badge Lighted In Front Grill
  • Rear Hitch For Towing Car
  • Stainless Steel Exterior Trim Pieces And Entrance Door Kick Panel
  • Tow Guard Rear Protective With Stainless Newmar Name Cutout
  • Undercoating
  • Blackthorn Full Painted Exterior Graphics
  • Dillon Full Painted Exterior Graphics
  • Emmons Full Painted Exterior Graphics
  • Fairweather Full Painted Exterior Graphics
  • Special Order Exterior Colors - Must Also Order Awning Color Option
  • Black Aluminum Powder Coat Trim Kit For Exterior Compartment Doors, Onyx Package
  • Flag Pole Bracket
  • Stainless Steel Trim Kit For Exterior Compartment Doors
  • 24X56 Non-Power Storage Tray, Location - Bay 2 (Floor Plans 3823 & 3825)
  • 24X56 Non-Power Storage Tray, Location - Bay 3 (Floor Plans 3823 & 3825)
  • 24X58 Power Storage Tray, Location - Bay 2 (Floor Plans 3823 & 3825)

Full specifications

AC BTU30000 btu
Available BedsKing
Awning InfoNova Power
Axle Weight Front20000 lbs
Axle Weight Rear20000 lbs
Axle Weight Tag14000 lbs
Black Water Capacity60 gals
Cargo Capacity13000 lbs
ChassisSpartan K3 Tag Axle
Convection CookingYes
Cooktop Burners2
Dry Weight41000 lbs
Electrical Service50 amp
EngineCummins 11.9L
Ext Height13 ft 2 in
Ext Width8 ft 6 in
Exterior ColorWHI
Fresh Water Capacity105 gals
Fuel Capacity150 gals
Fuel TypeDiesel
Furnace BTU50000 btu
GVWR54000 lbs
Grey Water Capacity80 gals
Gross Combined Weight69000 lbs
Hitch Weight15000 lbs
Horsepower525 hp
Int Height6 ft 11 in
Interior ColorWINSTON
Length38 ft 10 in
Number of Awnings2 ft
Refrigerator Size19.7 cu ft
Refrigerator TypeWhirlpool
Shower Size42" x 35"
Shower TypeAngled
Sleeps4
Slides3
TV InfoLR Samsung LED TV, BR Samsung LED TV, Overhead 43" Samsung 4K LED TV
Torque1695 ft-lb
Washer/Dryer AvailableYes
Water Heater TypeDemand
Wheelbase246 in

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2026 Mountain Aire 3825

2026 Mountain Aire 3825
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