2026 45' Newmar Summit Aire 4505 | Stock #8454

2026 IWS Signature Series™ Newmar Summit Aire 4505 – Stock #8454

On Order – Arriving October 2025

A little about this Summit Aire 4505:

We are so excited to announce the Newmar Summit Aire! This is the top of the mountain from Newmar with their Super C Lineup. Ever since we signed up with Newmar in 2021, we have been dreaming of this model to come into existence. We wanted to offer our customers the most luxurious experience possible and combine it with that Super C driving experience we know and love. We can tell you that Newmar absolutely nailed it with this one. This is the most luxurious coach we offer. Welcome to the Summit!

Built on the Freightliner P4 Cascadia 126 chassis, mated with the Detroit Diesel DD16 Engine with 600hp and 1,850 ft lb. of torque. We ordered this one with the Detroit DT12 12 Speed Automated Manual Transmission which is our favorite transmission for towing performance. Speaking of towing, this coach features a 30,000 lb. towing capacity with tandem rear axles leading the way. This is a beast of a powertrain that can handle anything you throw at it. It also has the Detroit Safety Assurance collision mitigation system, that features lane departure warning, blind spot monitoring, adaptive cruise control, and adaptive brake assistance.

This coach sits at a 45’ in total length, and features the 4505 bath and a half floorplan. This is our favorite 45’ Floorplan out there. We call this the “Epic” floorplan. This floorplan is excellent for those that want to go to a destination and stay for a while. We love the amount of seating options with the euro booth dinette, the theater seats, and the opposing sofa. There is so much room in this coach!

Being an IWS Signature Series™ build, we picked over $73,000 in options on this one. Some of these options we ordered are through the Newmar Specials program, which you can’t get on the standard option sheet. A few of the major options include:

Custom Designed Interior Upgrades Through Newmar Specials Program– We hand picked this interior with Newmar. We didn’t want to just offer what comes standard. We wanted to offer something unique, and one of one. This coach interior offers that. We hand selected the counter tops, backsplash, tile in the bathrooms, the tile flooring, and even the Italian leather furniture. ($11,000 in custom design options)

Theater Seating and Euro Booth Dinette in lieu of Sleeper Sofa and Dinette – A personal favorite combination of ours. We designed this floorplan for couples that are looking for the most luxurious, comfortable floorplan on the market. The theater seats are the most comfortable seats for the Summit Aire, and we love the Euro Booth versatility where if you do have 4 people over for dinner one night, its easy to convert to 4 seats. This also has a 58” tri-fold sofa for opposing seating. ($3,500 option)

Sleep Number King Bed – The most comfortable bed option we offer in the Super C lineup. This sleep number bed allows each person to set their own firmness on their side of the mattress. ($2,100 option)

Lithium Battery Upgrade Package – This gives you 940-amp hours of lithium batteries, and (2) 3,000-watt inverters over the standard 6-volt batteries, and single inverter. We wouldn’t order a Summit Aire without this package! ($30,000 option)

Two-Tone Hardwood Cabinets – For 2026 Newmar is offering a two-tone cabinet design, and we couldn’t say no as its one of the best-looking cabinet designs we have seen in a Super C! This coach has the Summit / Sedona Glazed Maple Design with Suede Finish. ($2,471 option)

Starlink Internet – Satellite Internet with the high-performance wedge mount. Comes built in with a router. Our preferred choice for internet on any motorcoach. ($5,600 option)

Winegard Travlr and In-Motion Satellite TV – Along with Satellite Internet, we also wanted to give you satellite tv options. With this package from Winegard you can always stay connected to TV through DirecTV. ($6,500 option)

You can put your name on it with a 10% deposit. Give us a call, and we can tell you even more about it, and the process of making it your coach. See you out on the road!

Written by Ben Ceccarelli

Standard Chassis Features

IWS Signature Series™ Freightliner Cascadia P4-126 (Tandem Rear Axle)
600hp DD16 Detroit Diesel Engine 1,850 ft. lb. Torque
Detroit DT12 12 Speed Detroit Automated Manual Transmission
GVWR 58,000lb / GCWR 80,000lb
Includes the Detroit Safety Assurance Collision Mitigation System
Full Double Steel Frame Construction (7/16″ Thick Steel)
18,000lb Detroit Front Axle with Taper Leaf Heavy Duty Suspension
40,000lb Detroit R Series Tandem Rear Axle with Hendrickson PRIMAAX EX Rear Air Suspension
1400 sq Inch Aluminum Radiator for Heavy Duty Applications
300 AMP Brushless Pad Mount Alternator for House Battery Charging while Driving
Bendix Air Disc Front and Rear Brakes
Michelin X Line Energy Z 315/80R22.5 20 Ply Radial Front Tires
Michelin X Line Energy Z 295/80R22.5 16 Ply Radial Rear Tires
Driver Controlled Locking Differential
LED Headlights
Anti Lock Braking System
Chassis Battery Disconnect
Electronic Stability Control
Air Horns
Engine Block Heater
Power and Heated Remote Control Mirrors
Power Window and Power Door Locks
Electronic Cruise Control
18″ Leather Wrapped Steering Wheel with Tilt & Telescoping Features
Tire Pressure Monitor
5 Year/100,000 mile Chassis Warranty
5 Year/100,000 mile Engine Warranty
5 Year/Unlimited miles Transmission Warranty
Note – Chassis Specs Are Subject to Change Without Notice

Standard Exterior Features

Gelcoated Fiberglass Exterior Sidewalls, Front and Rear Caps
One Piece Fiberglass Roof and Integrated Gutter Rails
Aluminum Framed Sidewalls and Roof Construction with 16′ on Center Cross Members
Convex Exterior Mirrors with Defrost and Remote Control
Chrome Exterior Mirrors
Keyless Entry with Key Pad and Doorbell for Front Entry Door
Morryde Side Swing Baggage Doors; with Remote Lock / Push Button Release
LED Lights Inside Of Storage Compartments
Large Entry Door Assist Handle
Radius RV Entrance Door w/Screen and Deadbolt
Fiberglass Molded Tank Covers and Cab Entry Steps
Automatic Electric Triple Entrance Step
Mud Flaps Behind Rear Wheels
Undercoat Underside of Coach
Newmar Signature Fiberglass Rear Cap with Stainless Steel Exterior Trim Pieces with Storage
Newmar Signature Fiberglass Front Cap and Transition
Chrome LED Docking lights on Rear Wheel Skirts & Rear Bumper
Egress Door with Ladder System

EXTERIOR LIGHTING

High Intensity Exterior LED Security Light, One Installed on Passenger Side
Mid-Ship Side Turn Signals

HITCHES AND TOWING

30,000lb. Adjustable Hitch with 2″ Reducer and Drawbar with 2″ and 2″-5/16″ Ball (3,000lb. Tongue Rating)
Rear Protective Full Width Mudflap with Stainless Steel Newmar Logo
Electronic Trailer Brake Controller Prep

INSULATION

5/8″ Bead Foam Insulation Laminated in Ceiling in Conjunction with Polar Pak Batten Insulation and Kraft Vapor Barrier (R-19 Roof Value)
5/8″ Bead Foam Insulation Laminated in Sidewall in Conjunction with Polar Pak Batten Insulation and Kraft Vapor Barrier (R-11 Sidewall Value)
5/8″ Floor Decking in Conjunction with Polar Pak Batten Insulation and Polyethylene Moisture Barrier (R-16 Floor Value)
Insulated Basement and Cargo Compartments (R-4 Basement Value)

PAINT AND APPEARANCE:

Full 4 Color Paint with Masterpiece™ Graphics with Clearcoat Finish
Diamond Shield Paint Protection

SLIDE OUTS

Automatic Mechanical Lock Arms on Slideout Rooms-Scissor Style
HWH Premium Flush Floor Slide with Tile Floor
Newmar Signature Hardwood Slidout Fascia
Removable Transport Pads for Under Slideout Rollers
Awning Slide Toppers on All Slide Outs

AWNINGS

Girard Package (2) Nova Side Awnings, Slide Out Covers and Power Window Awnings

WINDOWS

Skylight over Shower
Window Treatment- Fabric Valance over the Top of Window
Bonded Thermopane Frameless Vented Windows
Sky Window with Power Shade integrated in Aerodynamic Front Cap
60″ x 15″ Window in Kitchen

Added Exterior Options

Flagpole Bracket
Exterior LED Accent Lights Below Perimeter of Unit (Solid Color)
Exterior LED Accent Lights Underneath Road Side Slides (Solid Color)
Crestone Full Painted Exterior Graphics with Custom Color

Standard Interior Features

7′ Interior Height
Premium Padded Vinyl Ceiling with Designer Feature Panels
Cab Rail Privacy Curtains
Decorative Wall Coverings with Accent Coverings in Slide Out Rooms
Hardwood Raised Panel Design Interior Passage Doors
Interior Assist Handle at Main Entry Door
Power Stepwell Cover
Quilted Bedspread with Accent Pillows
Wastebasket in Kitchen Base Under Sink
Shoe Storage Shelves Recessed in Rear Cap of Wardrobe
Cathedral Ceiling in Rear

FURNITURE

Designer Bedspread with Pillows
Deluxe Padded Headboard
Air Ride Driver and Passenger Seats with Pneumatic Lumbar Support
Lifts on Bed Top

CABINETS

Concealed Hinges on Cabinet Doors
Molded Silverware Divider Tray
Soft close Full Extension Ball Bearing Drawer Guides Throughout
Cedar Lined Rear Closet
Pull-Out Pantry Shelves with Travel Latch

FLOORING

Tile Flooring Throughout Entire Coach. Includes Living Room, Kitchen, Hallway, Bathroom, and Bedroom
Tiled Entry Step Area
Electric Radiant Heated Floors

COUNTER TOPS

Polished Solid Surface Kitchen Countertops
Stainless Steel Deep Bowl Kitchen Sink with Solid Surface Covers
Polished Solid Surface Countertop in Bathroom and Bedroom

APPLIANCES

Whirlpool® 19.7 Cf. Refrigerator
All Electric Flush Mount Induction Cooktop with Matching Countertop Cover
Stainless Steel Convection Microwave Oven
Central Vacuum with Tool Kit
Splendide® Two-piece Stacked Washer/Dryer
Freezer on Pullout Tray in Exterior Compartment

Added Interior Options

Balboa Interior Décor Package
Dinette Euro Booth with 2 Table Leaves and 2 Folding Chairs
87″ Powered Theater Seating with Reading Lights and Lighted Cup Holders
Sleep Number R5 Radius Corner Air Mattress
Hardwood Cabinets – Two-Tone Color: Summit/Sedona Glazed Maple (Suede Finish)
Dishwasher in a Drawer with Stainless Steel Front Below Cooktop

Standard Water System Features

Porcelain Electric Macerator Toilet
Water Heater Bypass System
60 Gal Gray Waste Storage Tank & 40 Gal Black Waste Storage Tank
150 Gallons Fresh Water Storage Tank
12 Volt Black and Gray Tank Dump Valves
Water Management Systems Monitor Panel
Black Tank Flush
Whole House Water Filtration
Aqua Miser Shower System
Tile Shower and Glass Door
Fold Down Shower Seat
Flush Handles on Swinging Bath Doors
110 Volt Holding Tank Heaters – Both Gray and Black Tanks
Power Retractable Water Hose Reel
12 Volt High Capacity, On-Demand Water Pump
Exterior Shower
Auto Fill in Water Works Compartment
Hot Water Line Run to Front Door Side Storage Bay

Added Water System Options

RV Sanicon Turbo System
Assist Handle in Each Shower

Standard Mechanical Features

Chinook Dual Loop Heat with Continuous Hot Water
Fan-Tastic Vent with Rain Sensor in Kitchen and Bathroom
4-Point Auto Leveling System
(3) 15,000 BTU Low Profile Roof A/C w/Heat Pumps
Ducted Heating and Air Conditioning
LP/CO & Smoke Detectors, Fire Extinguisher
Roof A/C Purge Pumps with Condensation Lines to bottom of coach
Wall Mounted Temperature Sensors for Heating and A/C
5 KW Onan Quiet Diesel Generator
Battery Disconnect Switch for House Batteries
10 Watt Solar Panel to Charge Chassis Batteries
Solar Prep With 6 Gauge Wire Ran From The Roof To House Battery Compartment
Automatic Generator Start System
50 AMP Electrical Service with Flexible Cord on Power Cord Reel with Automatic Transfer Switch and Surge Protector
Multiplex Electrical and Lighting System with LCD Display Touch Screen
Secondary Multiplex Touch Screen in Bedroom
USB/110V Charging Outlets at Bedroom Nightstands and Dinette
Emergency Engine Start Switch
USB Outlet at Dash for Driver Use
Manually Operated Hold-To-Run Slideout Switch
Spare Fuses in Chassis and House Fuse Panels
Energy Management System
Dimmable/Adjustable Reading Lights at Head of Bed
Energy Efficient LED Flush Mount Ceiling Lighting Throughout
Interior Courtesy Lights
LED Accent Lights in Feature Ceiling, Slideout Fascia Trim and Lambrequins
LED Lighting in Pull-Out Pantry, Kitchen and Bathroom Base Cabinets
LED Lights Installed Under Door Slide Slideouts
110 Volt Receptacle in Bed Overhead with Two Pass-Through Ports
LED Lights in Wardrobe Closet

Added Mechanical Options

Lithium Battery Upgrade Package ($29,946 Option)
- Lithium Ion 940 Amp Hour Battery System
- (2) 3,000 Watt Inverters
50 Amp Receptacle Run from Generator to the Rear Compartment on the Road Side

Standard Electrical Features

Samsung LED 50″ 4K TV on Televator in Living Area
Bose 900 SoundTouch Soundbar System
Bose 500 Subwoofer
Cascadia Infotainment System
Remote Navigation Programming Via SD Card
(2) Bedroom Radio Speaker
Exterior Entertainment Ctr. w/ Samsung 43″ LED TV and Soundbar in Storage Compartment
Color Rear and Side View Cameras
Omniview NS360 Camera System
Xite 360 Camera Monitor Installed Under Cab Overhead
Sirius/XM Satellite Radio Capability with Antenna (Requires Customer Subscription)
Cat 6 TV Cables
CB Radio Prep with Antenna
12 Volt Auxiliary Receptacle on Dashboard
Cable TV Connection
Winegard Digital Crank-Up TV Antenna
Satellite Dish Prep on Roof
Infrared Repeater System to Operate Audio/Visual Components
Exterior Park Cable Hookup with 110 Volt Receptacle and TV Jack in Storage Compartment
Winegard Rayzar Automatic Digital Tv Antenna
Wifi Ranger Denali / Spruce LTE

Added Electrical Options

Sirius/XM Satellite Radio Capability with Antenna (Requires Customer Subscription)
(2) Rear Camera Prep for Use with a Trailer
Universal Toll Module
Starlink Internet System with High Performance Wedge Mount
Winegard Auto Open Face SWM Satellite Dish for Direct TV Std/Hd & In Motion Direct TV Std W/Auto Stow & Dash Ind

Standard Colors Features

IWS Installed Items

Custom Designed Interior Upgrades Through Newmar Specials

Camino Decor Wall Board
London Aire Back Splash in All Bathrooms and Kitchen – LA26-514
Mountain Aire Countertops -Rimrock Edge – MA26-223
King Aire Custom Flooring – K626-134
All Italian Leather on Furniture
Add Interior Grab Handle inside of Entrance
Vent Microwave to Exterior Wall

Custom Designed Exterior Paint Through Newmar Specials

Crestone Full Painted Graphics with Bright White Metallic Paint in lieu of 49557 Granite Metallic (Location B)”

*Note – Prices and Specifications are subject to change at Newmar’s discretion without notice or obligation*

This 2026 Newmar Summit Aire comes with the IWS Advantage Package!

Advantage Package

5 years free roadside assistance.
Your motorcoach will be filled with fuel at delivery.
Your motorcoach will be filled with propane at delivery.
New Apple iPad 32GB with Cellular & WiFi Capabilities with a protective case.
Exclusive IWS video library showing you how to use all of the features of your new motorcoach, preloaded onto a new iPad.
Exclusive access to the Member’s Only section of our website.
Exclusive 24 hour access to our service department, 7 days a week.
Exclusive one-on-one training on how to use, service, and maintain your new motorcoach.
Free night stay at our exclusive RV Park.

This Coachs' Floorplan

Summit Aire 4505 with Theater Seats

This Floor plan may show optional features that are not on every unit.

Sorry, no videos at this time.

*Please note that due to changes at factory, specifications, dimensions, features, and options may change at anytime without notice*

Summit Aire Specifications
FLOORPLAN	4505
OVERALL WIDTH	101.5”
OVERALL HEIGHT (to top of AC)	13′3”
OVERALL LENGTH	45’
INTERIOR HEIGHT	84″
FUEL CAPACITY	120 Gallons
FRESH WATER (gal)	150 Gallons
BLACK (gal)	40 Gallons
GRAY (gal)	60 Gallons
GVWR	58,000 lbs
Towing Capacity	30,000 lbs

Due to continued improvement, changes in suppliers and design; features, options, appliances, equipment, colors, material specifications, prices, and model availability are subject to change without notice.

Summit Aire

IWS Signature Series™ 2026 45' Newmar Summit Aire 4505