2023 Newmar Mountain Aire 4586 Specs
Know Before You Drive
Key specs for safe motorhome driving
⚠️ Height Alert: Over 11' tall. Watch for low bridges and overhangs!
Compact
<14k
Mid-Size
14-20k
Large
20-26k
XL
26k+
DRIVING QUICK FACTS
GVWR
54,000 lbs
License
May require CDL
Type
Class A
License Requirement
May require CDL
Standard
Check State
CDL May Apply
Essential Upgrades for the 2023 Newmar Mountain Aire 4586
Towing & Dimensions
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| GVWR | 54000 lbs | - | - | - |
| Dry Weight | 44100 lbs | - | - | - |
| Payload Capacity | 9900 lbs | Coil SumoSprings | - | - |
| Length | 538 in | Furrion Backup Camera | Shop Cameras | - |
| Width | 101.5 in | Clip On Mirrors | Shop Mirrors | - |
| Interior Height | 83 in | - | - | - |
| Towing Capacity | 15000 / 6804 lbs | - | - | - |
| Exterior Height | 158 in | Telescoping Ladder | Shop Ladders | - |
Specs
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GVWR
54000 lbs
Dry Weight
44100 lbs
Payload Capacity
9900 lbs
Length
538 in
Width
101.5 in
Interior Height
83 in
Towing Capacity
15000 / 6804 lbs
Exterior Height
158 in
Towing & Dimensions Best Sellers
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Electrical & Solar
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Shore Power | 30 Amps | - | - | - |
| Battery Type | 12V Lead-Acid | Renogy 100Ah LiFePO4 | RV Batteries | Top 5 |
| Solar Pre-Wired | Optional | - | - | - |
| Inverter | Optional | - | - | - |
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Shore Power
30 Amps
Battery Type
12V Lead-Acid
Solar Pre-Wired
Optional
Inverter
Optional
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Tank Capacities
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Number Of Fresh Water Holding Tanks | 1 | - | - | - |
| Number Of Gray Water Holding Tanks | 1 | - | - | - |
| Number Of Black Water Holding Tanks | 1 | - | - | - |
| Fresh Water Tank Capacity | 105 gal | - | Fresh Water Tanks | - |
| Gray Water Tank Capacity | 80 gal | - | - | - |
| Black Water Tank Capacity | 60 gal | - | Back Water Tanks | - |
| Number Of Propane Tanks | 1 | - | - | - |
| Propane Tank Capacity | 93.3 lbs | - | Propane Tank Capacity | - |
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Number Of Fresh Water Holding Tanks
1
Number Of Gray Water Holding Tanks
1
Number Of Black Water Holding Tanks
1
Fresh Water Tank Capacity
105 gal
Gray Water Tank Capacity
80 gal
Black Water Tank Capacity
60 gal
Number Of Propane Tanks
1
Propane Tank Capacity
93.3 lbs
Tank Capacities Best Sellers
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Tires & Wheels
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Front Brake Type | Hydraulic Disc | - | - | - |
| Wheelbase | 294 / 7467.6 in | - | - | - |
| Front Tire Width | 365 | - | - | - |
| Rear Brake Type | Hydraulic Disc | - | - | - |
| Rear Tire Aspect Ratio | 80 | - | - | - |
| Tire Brand | Michelin® | - | - | - |
| Front Tire Aspect Ratio | 70 | - | - | - |
| Rear Wheel Diameter | 22.5 | - | - | - |
| Front Tire | Michelin® XZA: 365/70R 22.5 LRL Full Spec | - | - | - |
| Wheels Composition | Aluminum | - | - | - |
| Front Wheel Diameter | 22.5 | - | - | - |
| Rear Tire | Michelin® X Line Energy Z: 315/80R 22.5 LRL Full Spec | - | - | - |
| Rear Tire Width | 315 | - | - | - |
Specs
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Front Brake Type
Hydraulic Disc
Wheelbase
294 / 7467.6 in
Front Tire Width
365
Rear Brake Type
Hydraulic Disc
Rear Tire Aspect Ratio
80
Tire Brand
Michelin®
Front Tire Aspect Ratio
70
Rear Wheel Diameter
22.5
Front Tire
Michelin® XZA: 365/70R 22.5 LRL Full Spec
Wheels Composition
Aluminum
Front Wheel Diameter
22.5
Rear Tire
Michelin® X Line Energy Z: 315/80R 22.5 LRL Full Spec
Rear Tire Width
315
Heating & Cooling
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Air Conditioning Type | Automatic | Dometic 13.5K Air Conditioner | Shop All RV AC | - |
| Heater Type | Automatic | - | - | - |
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Air Conditioning Type
Automatic
Heater Type
Automatic
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Living Room / Bedroom(s)
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Master Bedroom Shades / Curtains | Yes | - | - | - |
| Number Of Bathrooms | 1 | - | - | - |
| Living Area Location | Front | - | - | - |
| Reclining Sofa | No | RV Loveseat Recliner Sofa | Shop Sofa | - |
| Master Bedroom Door Style | Full Sliding Door | - | - | - |
| Number Of King Size Beds | 1 | - | - | - |
| Sofa Material | Leather | - | - | - |
| Master Bedroom Location | Rear | - | - | - |
| Master Bedroom Mirror Doors | Yes | - | - | - |
| Full Size Master Bedroom Closet | Yes | - | - | - |
| Number Of Convertible / Sofa Beds | 2 | - | - | - |
| Number Of Sofas | 2 | Tri-Fold Sofa | - | - |
| Master Bedroom Flooring Type | Tile | - | - | - |
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Master Bedroom Shades / Curtains
Yes
Number Of Bathrooms
1
Living Area Location
Front
Reclining Sofa
No
Master Bedroom Door Style
Full Sliding Door
Number Of King Size Beds
1
Sofa Material
Leather
Master Bedroom Location
Rear
Master Bedroom Mirror Doors
Yes
Full Size Master Bedroom Closet
Yes
Number Of Convertible / Sofa Beds
2
Number Of Sofas
2
Master Bedroom Flooring Type
Tile
Living Room / Bedroom(s) Best Sellers
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Kitchen / Dining
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Kitchen Location | Center | - | - | - |
| Number Of Oven Burners | 3 | - | - | - |
| Kitchen / Living Area Flooring Type | Tile | - | - | - |
| Refrigerator Size | Full-Size | - | - | - |
| Kitchen Table Configuration | Chairs | - | - | - |
| Refrigerator Power Mode | Electric | - | - | - |
Specs
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Kitchen Location
Center
Number Of Oven Burners
3
Kitchen / Living Area Flooring Type
Tile
Refrigerator Size
Full-Size
Kitchen Table Configuration
Chairs
Refrigerator Power Mode
Electric
Bathroom
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Bathroom Location | Center | - | - | - |
| Bathroom Flooring Type | Tile | - | - | - |
| Toilet Type | Porcelain | RV Toilet with Sprayer Attachment | Toilets | Top 5 |
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Bathroom Location
Center
Bathroom Flooring Type
Tile
Toilet Type
Porcelain
Exterior
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Number of Awnings | 2 | Motorized RV Awning Set | Shop Awnings | - |
| Leveling Jack Type | Front Power / Rear Power | - | - | - |
| Number Of Axles | 2 | - | - | - |
| Sidewall Construction | Fiberglass | - | - | - |
| Number of Doors | 1 | - | - | - |
| Door Type | Plastic / Glass | - | - | - |
| Body Material | Aluminum | - | - | - |
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Number of Awnings
2
Leveling Jack Type
Front Power / Rear Power
Number Of Axles
2
Sidewall Construction
Fiberglass
Number of Doors
1
Door Type
Plastic / Glass
Body Material
Aluminum
Exterior Best Sellers
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Options
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Wallpaper | Yes | - | - | - |
| Phone Prewiring | No | - | - | - |
| Screened Room | No | - | - | - |
| Cable Prewiring | Yes | - | - | - |
| Air Conditioning Prewiring | Yes | - | - | - |
| Swivel Seats | Yes | - | - | - |
| Power Retractable Awning | Yes | - | - | - |
| Sliding Glass Door | No | - | - | - |
| Heat Prewiring | Yes | - | - | - |
| Overhead Fan | Yes | Overhead Fan | - | - |
| Satellite Prewiring | Yes | - | - | - |
| Bunkhouse | No | - | - | - |
| TV Antenna Prewiring | Yes | - | - | - |
| Reclining Seats | Yes | - | - | - |
| Surround Sound | Yes | - | - | - |
| Washer / Dryer Prewiring | Yes | - | - | - |
| Power Adjustable Seat | Yes | - | - | - |
| Seat Armrests | Yes | - | - | - |
| Overdrive | Yes | - | - | - |
| Refrigerator | Standard | - | - | - |
| Battery Power Converter | Yes | - | - | - |
| Turbocharged | Yes | - | - | - |
| Power Retractable Slideout | Yes | - | - | - |
| Supercharged | No | - | - | - |
| Interior Wood Finish | Yes | - | - | - |
Specs
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Wallpaper
Yes
Phone Prewiring
No
Screened Room
No
Cable Prewiring
Yes
Air Conditioning Prewiring
Yes
Swivel Seats
Yes
Power Retractable Awning
Yes
Sliding Glass Door
No
Heat Prewiring
Yes
Overhead Fan
Yes
Satellite Prewiring
Yes
Bunkhouse
No
TV Antenna Prewiring
Yes
Reclining Seats
Yes
Surround Sound
Yes
Washer / Dryer Prewiring
Yes
Power Adjustable Seat
Yes
Seat Armrests
Yes
Overdrive
Yes
Refrigerator
Standard
Battery Power Converter
Yes
Turbocharged
Yes
Power Retractable Slideout
Yes
Supercharged
No
Interior Wood Finish
Yes
Cabin Specs
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Number Of Rows | 1 | - | - | - |
| Seat Specifications | Standard | - | - | - |
| Seat Material | Leather | - | - | - |
| Number Of Seats | 2 | - | - | - |
| Seat Type | Bucket | - | - | - |
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Number Of Rows
1
Seat Specifications
Standard
Seat Material
Leather
Number Of Seats
2
Seat Type
Bucket
Chasis
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Chassis Model | K3 | - | - | - |
| Chassis Brand | Spartan | - | - | - |
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Chassis Model
K3
Chassis Brand
Spartan
Drivetrain
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Transmission Brand | Allison | - | - | - |
| Number Of Speeds | 6 | - | - | - |
| Transmission Type | Automatic | - | - | - |
| Driveline Type | 4X2 | - | - | - |
Specs
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Transmission Brand
Allison
Number Of Speeds
6
Transmission Type
Automatic
Driveline Type
4X2
Engine
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Engine Type | I6 Diesel Pusher | - | - | - |
| Carburetion | Standard | - | - | - |
| Carburetion Type | Fuel Injected | - | - | - |
| Torque RPM | 1000 | - | - | - |
| Horsepower | 500 bhp | - | - | - |
| Engine Brand Name | Cummins | - | - | - |
| Horsepower RPM | 1900 | - | - | - |
| Torque | 2298 Nm | - | - | - |
| Cylinders | 6 | - | - | - |
Specs
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Engine Type
I6 Diesel Pusher
Carburetion
Standard
Carburetion Type
Fuel Injected
Torque RPM
1000
Horsepower
500 bhp
Engine Brand Name
Cummins
Horsepower RPM
1900
Torque
2298 Nm
Cylinders
6
Entertainment
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Number Of Televisions | 3 | Insignia LED HD Alexa TV | Shop RV TV's | - |
| Television Brand Name | Samsung | - | - | - |
| Speaker Location | Interior | RecPro Exterior Speakers | - | - |
Specs
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Number Of Televisions
3
Television Brand Name
Samsung
Speaker Location
Interior
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Fuel & MPG
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Fuel Capacity | 150 / 567.8 gal/l | 5Gal Gas Can | - | - |
| Fuel Type | Diesel | Fuel Treatment | - | - |
Specs
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Fuel Capacity
150 / 567.8 gal/l
Fuel Type
Diesel
Fuel & MPG Best Sellers
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Instrumentation
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Number Of Radios | 1 | - | - | - |
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Number Of Radios
1
Quick Overview
| Specs | Value | Buy | Shop All | Top 5 |
|---|---|---|---|---|
| Parent Company | Winnebago Industries | - | - | - |
| Year | 2023 | - | - | - |
| Make | Newmar | - | - | - |
| Display Name | Mountain Aire 4586 | - | - | - |
| Class | Class A | - | - | - |
| Max Sleeping Count | 6 | - | - | - |
| Number of Slideouts | 4 | - | - | - |
| Introduction Year | 2023 | - | - | - |
Specs
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Parent Company
Winnebago Industries
Year
2023
Make
Newmar
Display Name
Mountain Aire 4586
Class
Class A
Max Sleeping Count
6
Number of Slideouts
4
Introduction Year
2023
How We Scored This RV
Our MintRV Rating analyzes over 50 specifications across 5 key dimensions. Each dimension starts at 5.0 points and adjusts based on how this RV's specs compare to others in its class. Below is exactly how we calculated each score for this class a.
Drivability & Handling
4.5/10
Base Score
5.0
Spec-based adjustments
Based on Class A class averages
-0.5
Final Drivability & Handling
4.5
Living Space & Layout
7.8/10
Base Score
5.0
Spec-based adjustments
Based on Class A class averages
+2.8
Final Living Space & Layout
7.8
Comfort & Features
6.3/10
Base Score
5.0
Spec-based adjustments
Based on Class A class averages
+1.3
Final Comfort & Features
6.3
Storage Space
6.0/10
Base Score
5.0
Spec-based adjustments
Based on Class A class averages
+1.0
Final Storage Space
6.0
Off-Grid & Campsites
7.8/10
Base Score
5.0
Spec-based adjustments
Based on Class A class averages
+2.8
Final Off-Grid & Campsites
7.8
About Our Rating Methodology
MintRV Ratings are calculated using verified manufacturer specifications. We compare each RV against others in its class type and weight category. Scores are updated when new specs become available. Learn more about our methodology →
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Frequently Asked Questions
To safely tow the 2023 Newmar Mountain Aire 4586, ensure your vehicle's rated tow capacity exceeds its GVWR of 54000 lbs. With a dry weight of 44100 lbs and hitch weight of lbs, most midsize trucks and SUVs can tow it comfortably with a 10-20% safety margin.
This Class A has a dry weight of 44100 lbs and a GVWR of 54000 lbs, giving a payload capacity of 9900 lbs for gear, water, and supplies.
The approximate dimensions are length 538 in., width 101 in., and height 158 in. Always confirm clearances for garages, storage, and campsites.
The Mountain Aire 4586 includes a fresh water capacity of gallons, black water tank(s), and lbs of propane capacity-ideal for off-grid weekends.
Many Mountain Aire 4586 owners add a weight-distribution hitch, brake controller, leveling system, and portable generator to improve towing comfort. Solar kits, backup cameras, and upgraded tires are also popular upgrades.
With a GVWR of 54000 lbs and dry weight of 44100 lbs, the Mountain Aire 4586 is light enough for smaller tow vehicles yet rugged enough for light off-road travel. Add solar, extra propane, and a generator for extended off-grid stays.
This floorplan sleeps up to 6 people comfortably - perfect for couples or small families seeking a lightweight, easy-tow Class A.
The Mountain Aire 4586 features body construction with sidewalls and 2 axle(s). Its GVWR of 54000 lbs ensures strength without excessive towing weight.
?? Tip: Always check your vehicle's specific towing capacity in the owner's manual. Consider payload and tongue weight too!
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