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 Ventana is available on a 40’ or 43’ Spartan K2 400 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 400 chassis. Spartan’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
  • Automatic heated moisture enjectors with color-coded lanyards
  • Side-mounted service center
  • Connected Coach™ digital dash display
  • Passive steer tag axle
  • 15,000 lb towing capacity
  • 3-stage engine compression brak
  • SMART steering wheel with leather finish & phone controls


40′ or 43′

Peak HP

400 hp @ 2,100 RPM


40′: 245″ + 48″ tag
43′: 281″ + 48″ tag

Towing Capacity

15,000 lb



Safety Innovations

Spartan Advanced Protection System – Ventana

Spartan Advanced Protection System® is the industry’s first and only comprehensive safety system engineered to keep your Newmar Dutch Star on the road, and safe… to enjoy every adventure.

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



Parts Manuals

Operators Guides

Service Guides

Service Manuals

Wiring Manuals

Alternative Fuels


Ford Transit

RAM ProMaster