09/01/2026
🔥 600 HORSEPOWER. 30,000-LB. TOWING. PURE NEWMAR LUXURY. 🔥
If you're looking for a Super C that makes a statement EVERYWHERE it goes, meet the 2026 Newmar Summit Aire 4505.
This isn't your average motorhome. Built on a Freightliner Cascadia 126 tandem-axle chassis and powered by a massive 600 HP Detroit Diesel DD16, the Summit Aire combines serious heavy-duty capability with the kind of luxury you'd expect from a high-end coach.
Inside, the 44'11" 4505 floor plan gives you three slide-outs, a king-size bed, 1½ bathrooms, premium Italian leather seating, a residential refrigerator, and a beautifully appointed kitchen. It's designed to be just as impressive when you're parked as it is when you're rolling down the highway.
✨ FEATURES THAT STAND OUT:
• 600 HP Detroit Diesel DD16
• Freightliner Cascadia 126 tandem-axle chassis
• 1,850 lb.-ft. of torque
• 30,000-lb. hitch capacity
• 12-speed Detroit transmission
• 3 slide-outs
• King-size bed
• 1½ bathrooms
• Sleeps up to 5 on the Transwest listing
• 19.7 cu. ft. residential refrigerator
• Induction cooktop
• Convection microwave
• Italian leather driver & passenger seats
• Italian leather theater seating
• 87" hide-a-bed sofa
• 58" jack-knife sofa
• 50" Samsung 4K LED TV
• Bose 900 soundbar
• Starlink Internet System
• Tile flooring with electric radiant heat
• 3 × 15,000 BTU heat-pump A/C units
• Washer/dryer
• Solar
• 800Ah AGM house battery system
• 150-gallon fresh water tank
• 60-gallon gray tank
• 40-gallon black tank
• Exterior entertainment center
• Exterior freezer
• Adaptive cruise control
• HD 360° camera system
• Apple CarPlay
• Air-ride cab
📏 KEY SPECS:
Length: 44' 11"
Height: 13' 2"
Width: 101.5"
GVWR: 58,000 lbs.
GCWR: 80,000 lbs.
Fuel Capacity: 120 gal.
Fresh Water: 150 gal.
Towing: 30,000 lbs.
Engine: Detroit DD16
Horsepower: 600 HP
💥 MSRP: $957,460
🔥 Transwest Price: $813,841
📍 Transwest Belton, MO — Just South of Kansas City
📞 Call or text 816-892-5950
👉 See all photos, pricing & details:
https://www.transwest.com/rv/type/super-c/store/belton-mo/new-2026-newmar-summit-aire-4505-17n253045/
Big enough to bring everything. Powerful enough to tow it. Luxurious enough to make you never want to leave.