2026 Newmar Mountain Aire: small footprint with a big presence

Some RVs just check the boxes. The 2026 Newmar Mountain Aire does just that, rewriting the list and setting a new standard on the highway..

2026 Newmar Mountain Aire RVs for Sale

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    2026 Newmar Mountain Aire 4551

    at Transwest of Belton, MO

    New Class A

2026 Newmar Mountain Aire Features

Disclaimer: The features below might not reflect what exactly will be on the vehicle.

  • Designed to impress

    The Mountain Aire brings bold curb appeal with Newmar’s signature full-paint finish and the optional Onyx Package, which adds dark accents throughout. Dual power slide trays, a slide-out Dometic freezer with optional fridge upgrade, and lighted exterior storage make it both aesthetically pleasing and functional.
  • Pilot your ride

    This coach is equipped with Newmar’s Comfort DriveⓇ steering system, providing a smooth and more controlled ride. The anti-glare digital dash displays vehicle information clearly, while a 360° stitched camera system improves visibility in tight turns and narrow spaces. Co-pilot controls feature a touchscreen display for clear navigation and camera views, making this setup ideal.
  • Room to relax

    There’s tons of space to stretch out inside the Mountain Aire. The power theater seats feature hidden storage and illuminated cupholders, providing a cozy spot to kick back and relax. The Euro-style dinette features a hidden leaf extension and includes two folding chairs to seat extra guests comfortably.
  • A convenient kitchen

    The Mountain Aire’s kitchen comes ready for meal prep, both inside and out. A portable dual-burner induction cooktop plugs in easily outdoors or on the counter, and a WhirlpoolⓇ convection microwave with built-in air fryer makes cooking easy. The single-basin sink is paired with solid-surface covers and cutting boards, and the dishwasher is tucked away.
  • Your bedroom retreat

    In the back of the coach, the bedroom is spacious, bright, and is calling your name. A king-size bed with large nightstands features a built-in power station, while wardrobes with six full drawers provide ample storage. A SamsungⓇ Smart TV is positioned for easy viewing, and controls for lighting and shade are conveniently within arm’s reach.
  • Elevated bathrooms

    This coach includes a spacious rear full bath and a convenient mid-ship half bath. In back, you’ll find a tiled shower with a rain-style head, built-in bench, extra headroom, and a water-saving system for off-grid travel. A stacked washer and dryer are also tucked into the rear. The half bath adds flexibility for guests.

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    Featured Article

    What is a Newmar Authorized Dealer?

    A Brief History of Newmar  Let’s start with a little history lesson : Newmar was founded in 1968 by two men: Mahlon Miller and Marvin Newcomer (see where “Newmar” come...
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    Exterior of the 2023 Newmar Mountain Aire

    Frequently Asked Questions

    Who builds the Mountain Aire?

    The 2026 Mountain Aire is built by Newmar, a trusted name in luxury motorhomes for more than 50 years.

    What kind of engine does the Mountain Aire have?

    The Mountain Aire is powered by a 525-horsepower Cummins X12 diesel engine with 1,695 lb-ft of torque, paired with a Spartan K3 tag-axle chassis.

    Is the Mountain Aire a good fit for full-time RV living?

    Absolutely! With home-grade appliances, plenty of storage space for your belongings, and a power-packed diesel engine, the Mountain Aire supports your full-time adventures on the road.

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    Explore the 2026 Mountain Aire at Transwest

    Ready to experience the Mountain Aire difference? The 2026 Mountain Aire brings together power, comfort, and cutting-edge design in one unforgettable package. Browse our online inventory or visit us in person at Transwest.


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