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Condition: New
Exterior Length: 41 ft
Sleeps: 6
Number of Slide Outs: 3
Horsepower: 525 HP
Wheelbase: 282 in
Description: NEW 2026 NEWMAR MOUNTAIN AIRE 4118 – 329129
Discover the epitome of luxury and comfort with the 2026 Newmar Mountain Aire 4118. This stu...
Updated: Wednesday, October 07, 2026 09:20 AM
Seller: General RV Center - Virginia
Condition: New
Exterior Length: 38 ft
Sleeps: 4
Number of Slide Outs: 3
Exterior Width: 8 in
Stock Number: 355407
Description: NEW 2027 NEWMAR MOUNTAIN AIRE 3825 – 355407
2027 Newmar Mountain Aire 3825 Highlights:
• Rear master suite with 42" × 35" show...
Updated: Thursday, October 15, 2026 03:32 AM
Seller: Independence RV by General RV Center - Winter Garden
Condition: New
Exterior Length: 3 ft 2 in
Sleeps: 4
Number of Slide Outs: 3
Exterior Width: 8 in
Stock Number: 361287
Description: NEW 2027 NEWMAR MOUNTAIN AIRE 3825 – 361287
2027 Newmar Mountain Aire 3825 Highlights:
• Rear master suite with 42" × 35" show...
Updated: Monday, August 17, 2026 10:16 AM
Seller: Independence RV by General RV Center - Winter Garden
Condition: New
Exterior Length: 38 ft
Stock Number: 27-MA3825
Description: Now ordering 2027 Newmar motorhomes! Contact us now for more details. Visit our website at /2027-newmar-lineup
Frame: SPARTAN
EngineMake: CUMMIN...
Updated: Tuesday, October 13, 2026 07:58 AM
Seller: Steinbring Motorcoach
Condition: New
Exterior Length: 3 ft 2 in
Sleeps: 4
Number of Slide Outs: 3
Exterior Width: 8 in
Stock Number: 347755
Description: NEW 2026 NEWMAR MOUNTAIN AIRE 3825 – 347755
## Newmar Mountain Aire Class A diesel motorhome 3825 highlights:
- Bath and a Half
- Euro B...
Updated: Tuesday, August 18, 2026 03:36 AM
Seller: General RV Center - Canton
Condition: New
Exterior Length: 38 ft
Sleeps: 4
Number of Slide Outs: 3
Exterior Width: 8 in
Stock Number: 335697
Description: NEW 2026 NEWMAR MOUNTAIN AIRE 3825 – 335697
Discover the epitome of luxury and innovation with the 2025 Newmar Mountain Aire 3825. This ...
Updated: Friday, October 02, 2026 03:34 AM
Seller: General RV Center - Ocala
New 2026 NEWMAR MOUNTAIN AIRE 3825
Myrtle Beach, South Carolina
MSRP$926,016 USD $694,512
Condition: New
Exterior Length: 38 ft 10 in
Sleeps: 4
Number of Slide Outs: 3
Gross Vehicle Weight: 54,000 lb
Horsepower: 525 HP
Description: New 2026 Newmar Mountain Aire 3825
Details: Newmar Mountain Aire Class A diesel motorhome 3825 highlights: Bath and a Half Euro Booth Dinette Kin...
Updated: Monday, October 05, 2026 12:22 PM
Seller: Carolina RV
Used 2024 NEWMAR MOUNTAIN AIRE 3825
Southaven, Mississippi
MSRP$539,995 USD $499,995
View Floor Plan
Condition: Used
Number of Slide Outs: 3
Mileage: 16,236 mi
Number of Rear Axles: Tandem
Stock Number: 9956C
VIN: 4VZU1E13RC095455
Description: 2024 Newmar Mountain Aire 3825
Newmar, when only the best will do! Loaded with basically everything you want or need. 525HP power, smaller coach...
Updated: Thursday, October 15, 2026 08:13 AM
Seller: Southaven RV
Condition: New
Mileage: 2,120 mi
Stock Number: D3333
VIN: 4VZVU1E1XVC096483
Exterior Color: Misty Quartz
Interior Color: Sorrento
Description:
Updated: Thursday, October 08, 2026 03:04 PM
Seller: DeMartini RV Sales
Condition: New
Sleeps: 5
Number of Slide Outs: 3
Gross Vehicle Weight: 54,000 lb
Horsepower: 525 HP
Wheelbase: 282 in
Description: New 2027 Newmar Mountain Aire 4118
Details: Newmar Mountain Aire Class A diesel motorhome 4118 highlights: Bath and a Half Two Sofas King Bed Whi...
Updated: Wednesday, August 26, 2026 07:26 AM
Seller: Bankston Motor Homes of Hunstville
Condition: New
Exterior Length: 41 ft
Number of Slide Outs: 3
Mileage: 2,149 mi
Stock Number: D3276
VIN: 4VZVU1E18VC096367
Description: 2027 Newmar Mountain Aire 4118 Full Wall/3 Slide-Out Luxury Class A Diesel Pusher Motorhome. The 2027 Mountain Aire combines superior craftsmanship...
Updated: Friday, October 09, 2026 12:53 PM
Seller: DeMartini RV Sales
Condition: New
Exterior Length: 41 ft
Number of Slide Outs: 3
Exterior Width: 8 in
Stock Number: 27-012
Exterior Color: SMOKEY SAPPHIRE FULL BODY PAINT
Description: "2027 NEWMAR MOUNTAIN AIRE 4118!"
2027 NEWMAR MOUNTAIN AIRE 4118
SPARTAN CHASSIS K3
525HP ISX CUMMINS ENGINE
CURTSPECTRUM INT BR CON SPARTAN
THREE...
Updated: Tuesday, October 13, 2026 07:58 AM
Seller: Steinbring Motorcoach
Condition: New
Exterior Length: 3 ft 5 in
Sleeps: 6
Number of Slide Outs: 3
Exterior Width: 8 in
Stock Number: 347754
Description: NEW 2026 NEWMAR MOUNTAIN AIRE 4118 – 347754
Discover the epitome of luxury and comfort with the 2026 Newmar Mountain Aire 4118. This stu...
Updated: Tuesday, August 18, 2026 03:36 AM
Seller: General RV Center - Draper
Condition: New
Exterior Length: 3 ft 5 in
Sleeps: 6
Number of Slide Outs: 3
Exterior Width: 8 in
Stock Number: 349042
Description: NEW 2026 NEWMAR MOUNTAIN AIRE 4118 – 349042
Discover the epitome of luxury and comfort with the 2026 Newmar Mountain Aire 4118. This stu...
Updated: Tuesday, August 18, 2026 03:36 AM
Seller: General RV Center - Canton
Condition: Used
Sleeps: 4
Number of Slide Outs: 2
Mileage: 60,000 mi
Number of Rear Axles: Tandem
VIN: 4VZBT1D985C050230
Description: Meter Reads 60,000 Miles- New Cummins Motor Installed Less Than 5,000 Miles Ago W/paperwork, Equipped With Kitchen Dinette Area, 3 Slides, King ...
Updated: Thursday, September 24, 2026 07:15 AM
Seller: The Sandman's Toybox
Condition: Used
Exterior Length: 43 ft
Sleeps: 8
Number of Slide Outs: 3
Mileage: 35,324 mi
Stock Number: D769
Description: Stock Number: D76943' 2013 Newmar Mountain Aire 4344 450hp Cummins w/3 Slides.Experience the gold standard of luxury travel with this 2013 Mountain...
Updated: Thursday, October 15, 2026 08:11 AM
Seller: PPL Motor Homes - Houston
Condition: Used
Exterior Length: 44 ft
Sleeps: 6
Number of Slide Outs: 3
Mileage: 37,700 mi
Number of Rear Axles: Tandem
Description: 2014 Newmar MountainAire 4369. 450 Cummins, 37,700 miles. Onan Generator w/ Kubota Diesel. Full Size Fridge, Dishwasher, and Microwave. All upholst...
Updated: Wednesday, September 09, 2026 11:10 AM
Seller: David Hames
Condition: Used
Exterior Length: 43 ft 9 in
Sleeps: 4
Number of Slide Outs: 3
Mileage: 89,000 mi
Gross Vehicle Weight: 44,600 lb
Description: Used 2014 Newmar Mountain Aire 4369
Details: The Mountain Aire 4369 motor home by Newmar offers triple slides and a bath and a half. As you enter ...
Updated: Thursday, September 17, 2026 03:02 AM
Seller: Best Choice Trailers and RV
Condition: Used
Exterior Length: 44 ft
Number of Slide Outs: 4
Mileage: 91,250 mi
Exterior Width: 8 in
Stock Number: 25-334C
Description: 2008 NEW MOUNTAIN AIRE 4521. 2 OWNER COACH SOLD BY STEINBRING! STORED INSIDE
2008 NEWMAR MOUNTAIN AIRE 4521
SPARTAN CHASSIS
450HP ISM CUMMINS ENGI...
Updated: Tuesday, October 13, 2026 07:58 AM
Seller: Steinbring Motorcoach
Condition: Used
Exterior Length: 44 ft
Number of Slide Outs: 3
Stock Number: VP225136
VIN: 4VZVU1E94NC089650
Description: 2022 Newmar MOUNTAIN AIRE 4543 - Please email or call for the full list of the features, availability or anything else we can send to help you. ...
Updated: Thursday, October 01, 2026 11:05 PM
Seller: La Mesa RV - Phoenix
Used 2020 NEWMAR MOUNTAIN AIRE 4543
Dover, Florida
MSRP$414,999 USD $379,777
View Floor Plan
Condition: Used
Exterior Length: 3 ft 8 in
Sleeps: 3
Number of Slide Outs: 3
Mileage: 34,328 mi
Gross Vehicle Weight: 54,000 lb
Description: CONSIGNMENT 2020 NEWMAR MOUNTAIN AIRE 4543 – 365028
Newmar Mountain Aire 4543 Class A diesel motorhome highlights:
Bath and a Half
...
Updated: Friday, September 11, 2026 03:31 AM
Seller: General RV Center - Dover
Condition: New
Exterior Length: 44 ft
Sleeps: 4
Number of Slide Outs: 3
Exterior Width: 8 in
Stock Number: 355408
Description: NEW 2027 NEWMAR MOUNTAIN AIRE 4551 – 355408
2027 Newmar Mountain Aire 4551 Highlights:
• Cummins X 525 hp diesel with Allison 4000 MH
• ...
Updated: Thursday, October 15, 2026 03:32 AM
Seller: Independence RV by General RV Center - Winter Garden
Condition: New
Exterior Length: 3 ft 8 in
Sleeps: 8
Number of Slide Outs: 3
Exterior Width: 8 in
Stock Number: 347753
Description: NEW 2026 NEWMAR MOUNTAIN AIRE 4551 – 347753
**Newmar Mountain Aire Class A diesel motorhome 4551 highlights:**
- Bath and a Half
- Two ...
Updated: Tuesday, August 18, 2026 03:36 AM
Seller: General RV Center - Virginia
Condition: Used
Exterior Length: 44 ft 10 in
Mileage: 10,245 mi
Gross Vehicle Weight: 54,000 lb
Horsepower: 500 HP
Engine Manufacturer: CUMMINS
Description:
Updated: Tuesday, October 13, 2026 03:40 PM
Seller: RV Country - Mesa, AZ
Condition: Used
Exterior Length: 45 ft
Number of Slide Outs: 3
Mileage: 64,511 mi
Stock Number: CGP9817
VIN: 4UZFCTBG7FCGP9817
Description: Sales_pitch: The RV for sale is a Used 2015 Mountain Aire Class A Diesel by Newmar RV that and much more. This Mountain Aire Standard ...
Updated: Thursday, October 15, 2026 08:00 AM
Seller: Berryland Campers - Ponchatoula
Condition: Used
Exterior Length: 44 ft
Number of Slide Outs: 3
Mileage: 60,913 mi
Exterior Width: 8 in
Stock Number: 24-316C
Description: 2015 NEWMAR MOUNTAIN AIRE 4553
2015 NEWMAR MOUNTAIN AIRE 4553
FREIGHTLINER CHASSIS
500HP ISX CUMMINS ENGINE
BATH AND A HALF
3 POWER SLIDEOUTS, INC...
Updated: Tuesday, October 13, 2026 07:58 AM
Seller: Steinbring Motorcoach
