# Newmar Supreme Aire 4509

> Bath and a half, rear bath

Supreme Aire 4509 is a class c floor plan by Newmar.

## Specs (2025 model year)

| Spec | Value |
| --- | --- |
| Length | 44 ft 11 in |
| Sleeps | 6 |
| Slide-outs | 3 |
| Dry weight | 43,500 lbs |
| GVWR | 52,000 lbs |
| MSRP | $779,664 |

## Model years

2025, 2024, 2023. Year-specific specs: `https://rvenvy.com/class-c-motorhomes/newmar/supreme-aire/4509?year={year}`

## Overview

Built on the Freightliner M-2 112 chassis with a Detroit DD13-525 engine and a 30,000-lb rear hitch, the 4509 is a Super C that takes towing seriously without sacrificing an ounce of comfort. The bath-and-a-half layout with a rear bath gives everyone room to get ready without the usual morning bottleneck, and the interior quality is unmistakably Newmar. Think soft-close hardwood cabinetry, electric radiant floor heat under the main tile, and three 15K BTU heat pump air conditioners with remote thermostats. Optional lithium battery systems up to 960 AHR paired with dual 3,000-watt pure sine inverters and four rooftop solar panels mean serious off-grid capability for a coach this size.

## Floor plan tags

bath and a half, rear bath

## Inventory

No units currently for sale. Search similar inventory: https://rvenvy.com/inventory

Floor plan diagram: https://images.rvenvy.com/75c680cab50590b22a5e2f2f3b157746afb6091573791c2817cf2ce6d5153590/1024.webp

Canonical page: https://rvenvy.com/class-c-motorhomes/newmar/supreme-aire/4509