Newmar Ventana (40' and 43') Riding on Spartan's K2 400 Chassis

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Detailed Chassis Specifications

Premium Chassis Features

  • Comfort Drive™ Steering Assist System with Variable Driver’s Effort Control Feature
  • SMART Steering Wheel with Leather
  • 15,000 lb Towing Capacity
  • Spartan Safe Haul™ (Industry’s only factory-chassis integrated air supply for tow vehicle brake systems)
  • Side-Mounted Service Center
  • 5-Year/75,000 Mile Warranty
  • 20-Year Frame & Cross Member Warranty
  • No deductible, 24/7 Roadside Assistance for first 3 years of ownership


Engine +

Cummins L9

18.7 CFM Air Compressor

1000 Watt Block Heater

Peak HP: 400 hp at 2100 RPM

Peak Torque: 1250 lb-ft @ 1400 RPM

Transmission +

Allison 3000MH

Chassis Ratings +

40’ GVWR: 44,000 lb

43’ GVWR: 44,600 lb

40’ Front GAWR: 14,000 lb

43’ Front GAWR: 14,600 lb

Rear GAWR: 20,000 lb

40’ Tag GAWR: 10,000 lb

43’ Tag GAWR: 10,000 lb

40’ GCWR: 59,000 lb

43’ GCWR: 59,600 lb

Suspension +

Front: Integrated front air suspension and steer axle system with 14,600 lb capacity

Rear: Non-torque reactive parallelogram air suspension with 20,000 lb capacity

Tag: Parallelogram air suspension and integrated passive steering tag axle with 10,000 lb capacity

Bilstein Shocks +

Front: 46MM

Rear: 46MM

Tag: 46MM

Brakes +


Front: Air Disc

Drive: Air Drum

Tag: Air Drum

Steering +

VIP Leather Smart Wheel

Column: Manual TRW Tilt & Telescoping

Fuel System +

Fuel Tank: 100 gallon with dual side fill

DEF Tank: 10 gallon, driver’s side fill

Electrical System +

Custom Modular 12v Electrical System

Batteries: Two 950 CCA

Alternator: 210-amp

Cooling System +

Rear-Mounted Radiator: Parallel Air Flow System with Low Profile Radiator

Frame +

Raised Rail Design for Frame Strength and Basement Storage

Tires +

Front: Michelin 305/70R22.5XRVLRL

Rear: Michelin 305/70R22.5XRVLRL

Tag: Michelin 305/70R22.5XRVLRL

Wheels +

(6) Aluminum wheels with Accu-shield® finish and dress kit

(2) Steel wheels on inside dual wheels

Wheelbase +

269″ & 305″