# Newmar Mountain Aire 4521

Mountain Aire 4521 is a class a floor plan by Newmar.

## Specs (2023 model year)

| Spec | Value |
| --- | --- |
| Length | 44 ft 10 in |
| Sleeps | 6 |
| GVWR | 54,000 lbs |
| MSRP | $808,465 |

## Model years

2023. Year-specific specs: `https://rvenvy.com/class-a-motorhomes/newmar/mountain-aire/4521?year={year}`

## Overview

The Newmar Mountain Aire 4521 sits at the top of the diesel pusher world, combining Newmar's reputation for premium build quality with the kind of storage capacity and road presence that long-haul travelers appreciate. Owners consistently highlight the power, drivability, and upscale interior as standout strengths. As a discontinued floor plan in the current Mountain Aire lineup, the 4521 has a devoted following among buyers who seek it out specifically, and a thorough pre-purchase inspection is a smart step given the complexity of a coach at this level.

## Inventory

1 unit currently for sale priced at $119,900: https://rvenvy.com/class-a-motorhomes/newmar/mountain-aire/4521/inventory

Floor plan diagram: https://images.rvenvy.com/bbdf299bc88f6f2f59a40bb1dc395f52cfffeadf54688370774b076509fc50ef/1024.webp

Canonical page: https://rvenvy.com/class-a-motorhomes/newmar/mountain-aire/4521