Please select a store for service phone info.

Select a store

New 2027 Newmar Mountain Aire 4551

Class A Diesel|Orlando, FL| Stock# 355408
Payment Calculator
Stock Image

*Photo may not match RV in inventory. RV and photos coming soon. Call for Details.

Floorplan Image
Overview
Specifications

2027 Newmar Mountain Aire 4551 Highlights:
• Cummins X 525 hp diesel with Allison 4000 MH
• 105‑gal fresh water and 50,000 BTU furnace
• Three slides, king bed, and 1.5 baths
• Exterior entertainment and exterior freezer included

The Newmar Mountain Aire 4551 is a premium tag‑axle diesel coach built for travelers who want maximum power, luxury, and space. Its Cummins X engine delivers 525 horsepower and 1,695 lb‑ft of torque, paired with an Allison 4000 MH transmission for confident performance on long hauls and mountain grades. Inside, the 4551 features three slideouts, a king bed, and a 1.5‑bath layout that supports extended travel. With an 800‑amp‑hour battery system, large tank capacities, and upscale amenities including an exterior entertainment center and freezer, the Mountain Aire 4551 offers a refined and capable luxury motorhome experience.

Overview

2027 Newmar Mountain Aire 4551 Highlights:
• Cummins X 525 hp diesel with Allison 4000 MH
• 105‑gal fresh water and 50,000 BTU furnace
• Three slides, king bed, and 1.5 baths
• Exterior entertainment and exterior freezer included

The Newmar Mountain Aire 4551 is a premium tag‑axle diesel coach built for travelers who want maximum power, luxury, and space. Its Cummins X engine delivers 525 horsepower and 1,695 lb‑ft of torque, paired with an Allison 4000 MH transmission for confident performance on long hauls and mountain grades. Inside, the 4551 features three slideouts, a king bed, and a 1.5‑bath layout that supports extended travel. With an 800‑amp‑hour battery system, large tank capacities, and upscale amenities including an exterior entertainment center and freezer, the Mountain Aire 4551 offers a refined and capable luxury motorhome experience.

Specifications

Specifications

RV Details

  • Sleeps5
  • Slides3
  • Length44 ft. 10 in.
  • Width8 ft. 6 in.
  • Height13 ft. 2 in.
  • Int. Height6 ft. 11 in.
  • Dry Weight44200 lbs.
  • GVWR69000 lbs.

Tanks & HVAC

  • Fresh Water105 gal.
  • Black Water60 gal.
  • Gray Water80 gal.
  • Heat50000 BTU

Appliances

  • BedsKing, sofa sleeper, dinette conversion
  • Shower50 x 34 in.
  • Cooktops | Microwave2 | No
  • Washer/Dryer PreppedNo

Vehicle Details

  • FuelDiesel | 150 gal.
  • ChassisSpartan
  • EngineCummins X 11.9L
  • Horsepower525 hp
  • Torque1695 ft-lbs.

General RV works hard to ensure the accuracy of all its listings however we are not responsible for any misprints, typos, or errors found in our website pages. Manufacturer-provided pictures, specifications and features may be used as needed. Inventory shown may be only a partial listing of the entire inventory. Please contact us at 888-436-7578 for availability as our inventory changes rapidly.

*All RV prices exclude tax, title, registration and fees, including documentary service fees. All payments are with approved credit through dealer lending source. Advertised monthly payment is based on 20% cash down, plus tax, title, registration and fees, at 7.99% APR for 96 months on finance amounts under $10K, at 7.99% APR for 144 months on finance amounts from $10K to $25K, at 7.99% APR for 180 months on finance amounts from $25K to $50K, and at 7.99% APR for 240 months on amounts over $50K. $89 monthly payment based on purchase price of $9,999 with 0% down at 6.99% APR for 180 months. For select models only. Rate and payments are subject to change at any time. Conditions apply. See dealer for details.