2025 Newmar Mountain Aire 3825
New Class A in Winter Garden, Florida, 34787

New 2025 Newmar Mountain Aire 3825 available in Winter Garden, Florida




Unit Specs
- Stock #309717
- Year2025
- ManufacturerNewmar
- Make Newmar
- ModelMountain Aire
- Floorplan3825
- Floorplan LayoutBath and a Half
Front Entertainment
Outdoor Entertainment
Rear Bath
Rear Bedroom - Type Class A
- ConditionNew
- Length38' 0"
- VIN4VZVU1E19RC095685
- Price $912,663.00
- Need to know your payment? Use our RV Loan Calculator!
- ChassisSpartan K3 Tag Axle
- Engine ModelCummins 11.9L
- Fuel TypeDiesel
- Sleeps4
- Water Capacity (Fresh)105 gal
- Water Capacity (Black)60 gal
- Water Capacity (Grey)80 gal
- Slideouts3
- Tow/Hitch Weight15000 lbs
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!
- Bath and a Half
- Front Entertainment
- King Bed
- Outdoor Entertainment
- Rear Bath
- Rear Bedroom
- Washer-Dryer
2025 Newmar Mountain Aire 3825 Features
-
Exterior
Slideout
2025 Newmar Mountain Aire 3825 Specifications
MSRP
$829,392
MSRP + Destination
$829,392
Currency
US Dollars
Basic Warranty
12 Months
Structure Warranty
60 Months
Roof Warranty (Years)
12
Chassis Warranty
60 Months
Chassis Warranty
100,000 Miles
Powertrain Warranty
60 Months
Powertrain Warranty
100,000 Miles
Engine Brand Name
Cummins
Chassis Brand
Spartan
Engine Type
I6 Diesel Pusher
Chassis Model
K3
Cylinders
6
Horsepower (bhp)
525
Horsepower (kW)
391.8
Horsepower RPM
1900
Torque (Ft Lbs)
1695
Torque (Nm)
2298
Torque RPM
1000
Displacement (l)
11.9
Fuel Type
Diesel
Fuel Requirements
Regular
Carburetion Type
Fuel Injected
Turbocharged
Yes
Supercharged
No
Transmission Brand
Allison
Transmission Type
Automatic
Number Of Speeds
6
Overdrive
Yes
Driveline Type
4X2
Length (ft)
38.83
Length (in)
466
Length (ft/ft)
38
Length (ft/in)
10
Length (m)
11.8
Length (mm)
11800
Width (in)
101.5
Width (mm)
2578.1
Height (in)
158
Height (mm)
4013.2
Interior Height (in)
83
Interior Height (mm)
2108.2
Wheelbase (in)
246
Wheelbase (mm)
6248.4
Dry Weight (lbs)
41000
Dry Weight (kg)
18597.6
Payload Capacity (lbs)
13000
Payload Capacity (kgs)
5896.8
Towing Capacity (lbs)
15000
Towing Capacity (kgs)
6804
GVWR (lbs)
54000
GVWR (kgs)
24494.4
Fuel Capacity (gal)
150
Fuel Capacity (l)
567.8
Number Of Fresh Water Holding Tanks
1
Total Fresh Water Tank Capacity (gal)
105
Total Fresh Water Tank Capacity (l)
397.5
Number Of Gray Water Holding Tanks
1
Total Gray Water Tank Capacity (gal)
80
Total Gray Water Tank Capacity (l)
302.8
Number Of Black Water Holding Tanks
1
Total Black Water Tank Capacity (gal)
60
Total Black Water Tank Capacity (l)
227.1
Body Material
Aluminum
Sidewall Construction
Fiberglass
Number of Doors
1
Sliding Glass Door
No
Number of Slideouts
3
Power Retractable Slideout
Yes
Number of Awnings
2
Power Retractable Awning
Yes
Screened Room
No
Leveling Jack Type
Front Power / Rear Power
Kitchen / Living Area Flooring Type
Tile
Kitchen Table Configuration
Bench Seats
Kitchen Location
Center
Living Area Location
Front
Layout
Oven / Stove
Number Of Oven Burners
2
Overhead Fan
Yes
Convection
Yes
Refrigerator Size
Full-Size
Refrigerator Power Mode
Electric
Number Of Sofas
1
Sofa Material
Leather
Reclining Sofa
No
Number Of Recliner / Rockers
2
Material
Leather
Max Sleeping Count
4
Number Of Bunk Beds
0
Number Of Double Beds
0
Number Of Full Size Beds
0
Number Of Queen Size Beds
0
Number Of King Size Beds
1
Number Of Convertible / Sofa Beds
1
Master Bedroom Flooring Type
Tile
Master Bedroom Door Style
Full Sliding Door
Full Size Master Bedroom Closet
Yes
Master Bedroom Mirror Doors
Yes
Master Bedroom Shades / Curtains
Yes
Master Bedroom Location
Center
Bunkhouse
No
Number Of Bathrooms
2
Bathroom Flooring Type
Tile
Bathroom Location
Rear / Center
Toilet Type
Porcelain
Toilet Location
Rear / Center
Door Type
Plastic / Glass
Shower Location
Rear
Bathroom Sink Location
Rear / Center
Bathroom Medicine Cabinet Location
Rear / Center
Bathroom Mirror Location
Rear / Center
Bathroom Vent / Fan System Location
Rear / Center
Wheels Composition
Aluminum
Number Of Axles
2
Tire Brand
Michelin
Front Tire Width
365
Front Tire Aspect Ratio
70
Front Wheel Diameter
22.5
Rear Tire Width
315
Rear Tire Aspect Ratio
80
Rear Wheel Diameter
22.5
Front Tire (Full Spec)
Michelin XZA: 365/70R 22.5 LRL
Rear Tire (Full Spec)
Michelin X Line Energy Z: 315/80R 22.5 LRL
Front Brake Type
Hydraulic Disc
Rear Brake Type
Hydraulic Disc
Rear Hitch Type
Receiver
Seat Type
Bucket
Seat Material
Leather
Power Adjustable Seat
Yes
Reclining Seats
Yes
Swivel Seats
Yes
Seat Armrests
Yes
Number Of Seats
2
Number Of Rows
1
Battery Power Converter
Yes
Air Conditioning Prewiring
Yes
Cable Prewiring
Yes
Phone Prewiring
No
Heat Prewiring
Yes
TV Antenna Prewiring
Yes
Satellite Prewiring
Yes
Washer / Dryer Prewiring
Yes
Solar
Yes
Back-Up Camera
Yes
Generator Type
Diesel
Air Conditioning Type
Automatic
Air Conditioning (BTUs)
30,000
Heater Type
Automatic
Heater (BTUs)
50,000
Water Heater Tank Capacity (g)
0
Water Heater Tank Capacity (l)
0
Water Heater Pump Power Mode
Electrical
Tankless Water Heater
Yes
Number Of Emergency Exits
1
Number Of Radios
1
Satellite
Yes
Speaker Location(s)
Interior
Surround Sound
Yes
Television Brand Name
Samsung
Number Of Televisions
3
Primary Color
White
Secondary Color
Red
Paint Swatch File Name
Newmar/Imperial_Exterior.gif
Wallpaper
Yes
Interior Wood Finish
Yes
See Dealer For Details
Yes
Bluetooth Audio
Yes
Wi-Fi Capable
Yes
Mobile App Instrumentation
Yes
Unit Specs
- Stock #309717
- Year2025
- ManufacturerNewmar
- Make Newmar
- ModelMountain Aire
- Floorplan3825
- Floorplan LayoutBath and a Half
Front Entertainment
Outdoor Entertainment
Rear Bath
Rear Bedroom - Type Class A
- ConditionNew
- Length38' 0"
- VIN4VZVU1E19RC095685
- Price $912,663.00
- Need to know your payment? Use our RV Loan Calculator!
- ChassisSpartan K3 Tag Axle
- Engine ModelCummins 11.9L
- Fuel TypeDiesel
- Sleeps4
- Water Capacity (Fresh)105 gal
- Water Capacity (Black)60 gal
- Water Capacity (Grey)80 gal
- Slideouts3
- Tow/Hitch Weight15000 lbs
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