Never settle.

You’ve earned the right to explore new places and meet new people. We’re here to make sure your journey is safe, smooth, and always first class. As the industry leader in chassis-centric innovations, improving the safety culture is core to Spartan RV Chassis. That’s why Newmar has partnered with us to raise the bar on safety on their coaches.

The Newmar New Aire is available on a 35′ Spartan RV Chassis K2 450 chassis. Designed, engineered, and made in America with the finest components creating a premier foundation for the most discerning RV makers and owners.

Spartan RV Chassis makes the only chassis built exclusively for motorhomes. We didn’t take the easy route and modify a truck chassis for our partners at Newmar. We knew they wanted an unmatched ride that was as smooth and quiet as it was invigorating and well-appointed. So, we built them the unique K2 450 chassis. Spartan RV Chassis’ Advanced Protection System and integrated tow-vehicle braking are now available to Newmar customers.

The highest-quality materials provide reliability and dependability, along with nationwide service, and the best warranty in the business. Motorhomes riding on a Spartan RV chassis are built with care to stay on the road for a good long time.


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Premium Features

  • Comfort Drive™ steering assist system w/ variable driver’s effort control feature
  • Independent front suspension
  • Automatic heated moisture ejectors with color-coded lanyards
  • Side-mounted service center
  • Connected Coach® 15" glare-free digital dash display
  • Variable Geometry Turbo (VGT), exhaust brake
  • 10,000 lb towing capacity
  • Tri-Pod Steering Wheel with leather finish, phone, and media controls
  • Headlamps with auto on/off feature
  • Spartan RV Chassis Passive Keyless Start
  • 20-Year Transferable Warranty on Frame & Cross Members
  • 5-year/100,000-mile transferable warranty
  • 5-year/100,00-mile Cummins Engine warranty
  • 5-year/200,000-mile Allison Transmission warranty
  • K2 450 Chassis



Peak HP

450 hp @ 2,100 rpm



Towing Capacity

10,000 lb



Safety Innovations

Spartan® RV Chassis Advanced Protection System™ (APS) – New Aire

  • Automatic Traction Control (ATC)
  • Adaptive Cruise Control (ACC)
  • Electronic Stability Control (ESC)
  • Collision Mitigation System (CMS)
  • Mobileye® visual & audible lane departure warning
  • Tire Pressure Monitoring System (TPMS)
  • Spartan RV Chassis Safe Haul® (The industry’s premier factory-chassis integrated air supply for tow vehicle brake systems.)



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Service Manuals

Wiring Manuals

Alternative Fuels


Ford Transit

RAM ProMaster