# Newmar Mountain Aire 4551

> Bath and a half, rear bath

Mountain Aire 4551 is a class a floor plan by Newmar.

## Specs (2027 model year)

| Spec | Value |
| --- | --- |
| Length | 44 ft 10 in |
| Sleeps | 5 |
| Slide-outs | 3 |
| Dry weight | 44,200 lbs |
| GVWR | 54,000 lbs |
| MSRP | $926,036 |

## Model years

2027, 2026, 2025, 2024, 2023, 2022, 2021. Year-specific specs: `https://rvenvy.com/class-a-motorhomes/newmar/mountain-aire/4551?year={year}`

## Overview

Newmar's industry-first Comfort Drive™ adaptive steering is one of those features you don't fully appreciate until you've driven a 45-foot coach through a crosswind, and the Mountain Aire 4551 pairs it with OnGuard™ collision mitigation and Mobileye® lane tracking for a driving experience that punches well above what most Class A coaches offer. Inside, the bath-and-a-half layout puts a fully enclosed midship bath (with a 44"x30" skylight shower and Aqua Miser system) between the living area and the rear, so the bedroom stays private without sacrificing convenience for guests. The King bed, stacked Splendide® washer/dryer, and all-electric induction cooktop point squarely at full-timers, while the Italian leather sofas, maple cabinetry, and Newmar's signature Full-Paint Masterpiece Finish make clear this is a coach built to impress at the campsite as much as on the road. Starlink, a Bose® soundbar on the exterior entertainment center, and optional Lithionics® lithium battery systems up to 960 AHR round out a feature list that leaves very little to add.

## Floor plan tags

bath and a half, rear bath

## Inventory

5 units currently for sale priced $317,250 to $752,995: https://rvenvy.com/class-a-motorhomes/newmar/mountain-aire/4551/inventory

Floor plan diagram: https://images.rvenvy.com/f11480c507bcdf7afb8e268a154de2feb90fd67dc6e79361a8f2786b2cf548c5/1024.webp

Canonical page: https://rvenvy.com/class-a-motorhomes/newmar/mountain-aire/4551