
THE QUIETEST RIDING, BEST HANDLING COACH ON THE MARKET TODAY. PERIOD.
2021 CORNERSTONE
LENGTH 44' 11" | WIDTH 101" | SLEEPS UP TO 2

Take one step inside the Cornerstone, and you'll see why this is the best-selling model in the Cummins X 605HP engine category. This powerful coach delivers the ultimate luxury experience. With unmatched style, the 2021 model offers top of the line interior features such as new high-class quartz countertops, upscale porcelain tile floors and true Villa Italian leather furniture throughout. Technology enhancements like the updated Xite® XSG3 radio system, power driver's cockpit window and 43" exterior Samsung® Smart TV allow you to live the life of luxury.
Floorplans
Exterior Graphics
STANDARDS & OPTIONS
Chassis
Spartan® K3 raised-rail chassis
Engine
Cummins® 15 liter X15 turbocharged 605 HP engine 1,950 lb. ft. torque at 1,150 RPM
Transmission
Allison® 4,000 MH 6-speed transmission
Radiator
Side-mounted radiator
Alternator
210 amp alternator
Engine Block Heater
1,500 watt engine block heater
Engine Brake
Three-stage engine brake
Air Leveling
Valid air leveling system with auxiliary air compressor
Leveling System
Equalizer hydraulic automatic coach leveling
Ride & Handling Package
Electronic stability control
Front Axle
Reyco® Granning®- 20,000 lb. rating
Front Suspension
Independent front air suspension (IFS)
Rear Axle
Dana® rear axle- 20,000 lb. rating
Tag Axle
Reyco® Granning® passive steer tag axle with air dump- 14,000 lb. rating
Braking System
All-wheel ABS disc brakes
Rear Axle Ratio
4.30 rear axle ratio
Tires
Michelin® 365/70R 22.5" tires (front) and 315/80R 22.5" tires (rear)
Tire Pressure Monitoring
Tire pressure monitoring system (TPMS) with temperature monitoring
Traction Control
Automatic traction control
Shocks
Bilstein® shocks- 60mm front axle & 46mm rear/tag axles
Air Connection
Remote air connection
Chassis Battery
(2) 12V chassis batteries
Fuel Tank
150 gal. fuel tank(dual fill)
DEF Tank
15 gal. DEF tank (dual fill)
Turning Radius
55 degree turning radius
Tow Air Brake System
Spartan® Safehaul tow vehicle air brake system
Hitch
20,000 lb. hitch with 7/4-pin plug

















