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 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 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’s 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 with variable drivers effort control feature
  • Independent front suspension
  • Automatic heated moisture enjectors with color-coded lanyards
  • Side-mounted service center
  • Connected Coach™ digital dash display
  • Variable Geometry Turbo (VGT), exhaust brake
  • 10,000 lb towing capacity
  • SMART steering wheel with leather finish & phone controls
  • K2 450 Chassis



Peak HP

450 hp @ 2,100 RPM



Towing Capacity

10,000 lb



Safety Innovations

Spartan Advanced Protection System – New Aire

Spartan Safe Haul™ The industry’s only factory-chassis integrated air supply for tow vehicle brake systems.

  • Collision Mitigation with Adaptive Cruise Control alerts the driver of potentially dangerous driving scenarios and adjusts speed to maintain a safe following distance.
  • Electronic Stability Control (ESC) helps the driver maintain control of the coach in extreme steering maneuvers by automatically controlling individual brakes to help keep the coach moving in intended direction.
  • Automatic Traction Control (ATC) helps the driver maintain traction under the drive axle tires in slippery conditions by automatically applying brakes on the wheel end that is slipping. This helps transfer power to the wheel end with more traction.
  • Tire Pressure Monitoring System (TPMS) displays tire pressure and temperature for individual tires. The system will alert the driver if any tire pressure or temperature exceeds set thresholds. The system is expandable to monitor towed vehicles as well.



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Service Manuals

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Alternative Fuels


Ford Transit

RAM ProMaster