2020 Cornerstone



This is the best- selling model in the Cummins X engine category for a reason: pure luxury. With style sharpened and opulence intensified, this carefully crafted vehicle will have you riding in ultimate refinement and exquisiteness. Unparalleled magnificence pours from this motorcoach as it handles the road ahead with grace and splendor.



Ward = wardrobe

Lav = bathroom sink

Med = medicine cabinet

Ohc = overhead cabinets

Fridge = refrigerator

Micro = microwave

Exterior Graphics

Standards & Options


Air Connection Remote air connection
Air Leveling Valid air leveling system with auxiliary air compressor
Alternator 210-amp alternator
Braking System All-wheel ABS disc brakes
Chassis Spartan K3 raised rail chassis
Chassis Battery Chassis batteries 2-12 volt
DEF Tank 15-gal. DEF tank (dual fill)
Engine Cummins 15 liter X15 turbocharged 605HP engine 1,950-lb. ft. torque at 1,200 RPM
Engine Block Heater 1,500 watt engine block heater
Engine Brake Three-stage engine brake
Front Axle Reyco Granning IFS independent 20,000-lb. front axle and air suspension
Front Suspension Independent front air suspension
Fuel Tank 150-gal. fuel tank (dual fill)
Hitch 20,000-lb. hitch with 7/4-pin plug
Radiator Side-mounted radiator
Rear Axle Dana rear axle 20,000-lb., tag axle 14,000-lb.
Rear Axle Ratio 4.30 rear axle ratio
Rear Suspension Dana rear suspension
Shocks Bilstein shocks- 60MM front & 46MM rear/tag
Tag Axle Reyco Granning passive steer tag axle and tag axle air dump
Tires Michelin 365/ 70R 22.5" tires (front) and 315/80R 22.5" tires (rear)
Tire Pressure Monitoring Tire pressure monitor system
Tow Air Brake System Safehaul tow air brake system
Traction Control Automatic traction control
Transmission Allison 4000 MH 6-speed transmission
Turning Radius 55-degree turning radius


Exterior Walls 2- 1/2" exterior wall with welded tubular aluminum construction and high-gloss, gel-coat fiberglass
Floor 2" x 4" floor truss construction
Floor Decking 3/4" 7-ply plywood main floor decking
Frame X-bridge frames welded into chassis frame
Front Cap Steel-reinforced front cap and windshield frame
Insulation Insulation with reflective Flexfoil floor (R-33), roof (R-24), sidewalls (R-16), front and rear caps (R-22)
Roof One-piece fiberglass roof with 3/8" plywood decking and 4" arched aluminum roof truss
Slideouts Flush-mounted electric-powered slideout rooms with both VegaTouch and separate rocker switch controls
Underbelly Heated basement storage area
Walls Aluma-Tru superstructure construction on 12"-16" centers

Heat, AC, Water & Power

Air Conditioning 15,000-BTU low profile A/Cs (3) with heat pumps and condensation drain system
Batteries L16 AGM batteries (4), (6v/390 amp hrs. ea.)
Black Holding Tank Sprayer Black holding tank sprayer
Black Tank Management Macerator holding tank dump system with electric gate valves, & manual back-up system
Electrical Hookup 50-amp power cord with electric reel
Generator Onan 12,500-watt diesel generator with auto gen start, on powered slide-out tray
Heating System Aqua-Hot 450 diesel hydronic water and heating system with in-floor heat throughout and engine preheat
Inverter 3,000 watt pure sine wave inverters (2)
Power Management Premium surge protector transfer switch
Water Hose w/ Electric Reel Water hose with electric reel
Water Filtration City and tank water filtration system
Water Monitoring Trutank ultrasonic tank monitoring system displayed on VegaTouch screen
Winterization Drain System Winterizing drain system


Cargo Features Power slide-out cargo trays; 2.8 cu. ft. exterior Dometic refrigerator/ freezer on slide-out tray
Clearance Accent LED lit chrome clearance accent light
Door Awning Girard power entrance door awning with LED lights
Engine Door Power engine door with manual override
Exterior 3M front protective film mask
Exterior Entertainment Samsung 40" 4K UHD Slim, Smart TV and Bose Solo 5 sound bar on TV bracket with extend, tilt and swivel arm
Headlights LED high and low beam headlights
Keypad Handle Lighted grab handle with keypad system
LED Fog Lights LED fog lights
LED Lights LED marker lights, turn lights, accent lights and license plate light
LED Docking Lights LED docking lights
Mirrors Chrome, heated, remote control, Ramco side-view mirrors with blind-spot indicators
Patio Awnings Roof mounted Girard Vision dual pitched patio awnings with LED lights
Rear Mudflap Full-width rear mudflap, with chrome "Cornerstone" nameplate
Satellite Dish - US Winegard Trav'ler satellite dish DIRECTV - standard w/ USA option
Satellite Dish - CA Winegard Trav'ler satellite dish Shaw TV - standard w/ CSA option
Slideout Awnings Girard Ultra slide-out awnings
Stainless Steel Accents Executive Bus Armor 10" stainless steel trim
Utility Center Exterior heated utility center with 5" Firefly system monitor panel
TV Antenna Winegard Rayzar automatic powered TV antenna
Windows Hehr frameless, tinted, dual-pane, safety-glass windows
Window Awnings Girard Ultra window shade awnings


Additional Amenities Two dual USB ports and 12v socket for charging
Cameras Xite 360 camera system that displays on digital dash screen
Dash Valid 15" digital dash with selector knob and three selection main screens
Driver / Passenger Seats Villa 6-way power, lumbar, air cooled, heated, leather driver and passenger seats with integrated seatbelt
Infotainment System(s) Glass panel, dual 9" touchscreen in-dash infotainment center with Rand McNally RV navigation, Bluetooth, Sirius XM, AM/FM tuner, integrated camera control, house mode whole coach audio distribution, and integrated VegaTouch coach control
Monitoring System(s) Blind spot monitoring system displayed on digital dash screen
Pedals Power adjustable brake and accelerator pedals
Start Push button start
Steering / Driving Features E-Z Steer electric, adjustable power steering assist; VIP wood-grain, leather-wrapped, tilt and telescoping steering wheel with integrated controls for cruise and wipers
Sound System JBL premium audio sound system with amplifier, speakers and DVC sub-woofer
Visors & Privacy Shade Power front sun visors and privacy shade
Windshield Ultra-Vision one-piece wrap-around tinted windshield


Central Vacuuming System Central vacuum system
DVD Systems Samsung HD Blu-ray player
Electric Fireplace LED lit fireplace with 1500w heating element (45B and 45Y)
Flooring Hand laid 16" x 32" porcelain tile floor
Furniture Villa Italian leather furniture
Interior Doors Aire-Secure travel locks for all pocket doors
Lighting System 10" VegaTouch touchpad system, for complete integration of coach controls/ mobile app control also
Lighting Premium LED 12V recessed ceiling lighting
Window Treatments Powered solar day and black out night shades
Television - Living Room Samsung 50" 4K UHD Smart TV
Television - Front Overhead Samsung 32" LED Slim 1080P Smart TV in front overhead
Sound - Living Room Bose SoundTouch 300 sound system with wireless surround sound speakers
Washer/Dryer Whirlpool stacked washer and dryer


Cooktop Induction cooktop with matching wood cover
Dishwasher Dishwasher with wood raised panel door front
Kitchen Countertops Quartz countertops with stainless steel sink and dimmable LED accent lighting
Microwave Whirlpool Gold 1.9 cu. ft. convection microwave oven
Refrigerator Whirlpool stainless steel residential refrigerator with ice maker and water dispenser
Vent Maxxair power exhaust vent fan
Waste Basket Large deep drawer for waste basket with easy access trash chute (trash chute not available in 45F)


Bedroom Mattress / Bedding Select Comfort Sleep Number king size mattress
Bedroom Wardrobe Large cedar-lined wardrobe with LED lit, motion activated closet rod
Ceiling Fan Ceiling fan
DVD Systems Samsung Blu-ray player
Nightstands Nightstands with USB ports and quartz tops
Sound Bose Solo 5 sound bar
Television Samsung 32" LED Slim 1080P Smart TV


Bathroom Countertop(s) Quartz countertop with integrated glass sinks and LED accent lighting
Bathroom Shower Porcelain tiled shower walls and floor with skylight and frameless glass shower door
Bathroom Ventilation Maxxair Deluxe power exhaust vent fan with intake
Shower Head Pivoting shower head and separate hand held spray wand
Shower Seat Teakwood shower seat (Not available in 45F)
Toilet Thetford Tecma china toilets with push button flush (45A, 45F, 45W)


Blind Spot Monitoring Blind spot monitoring system displayed on digital dash screen
Carbon Monoxide Detector Combination carbon monoxide detector and gas alarm
Lights Porch light and motion sensor security lights
Security Safe Safe
Security System Security system with glass shatter sensors
Smoke Alarm Smoke alarm


Canadian Standards CSA Optional
Dinette Option 1 Booth dinette passenger side (45A)
Dinette Option 2 Booth dinette driver side (45B, 45W and 45Y)
Freestanding Table Option 1 Free standing table with 4 chairs driver side (45X)
Reclining Sofa Option 1 100" reclining sofa passenger side (45B and 45Y)
Satellite Dish Winegard in-motion dome, roof mounted satellite dish
Solar Solar panels (Dual-100 watt) with Morningstar SunSaver Duo solar panel charge controller
Theater Seating Option 1 100" theater seat passenger side (45B and 45Y)
Theater Seating Option 2 82" theater seat passenger side (45A)
Theater Seating Option 3 82" theater seat driver side (45W)
Theater Seating Option 4 74" theater seat passenger side (45F and 45X)
WiFi Extender Antenna Winegard WIFI extender with 4G/LTE

Décor Options

Entegra Coach peace of mind

2-year warranty and 3-year roadside assistance

At Entegra Coach, excellence doesn’t end with our stunning interiors and superior craftsmanship. We back each luxury coach with the industry’s highest level of service—including a 2-year warranty and 3-year roadside assistance.

2-year warranty details

3-year roadside assistance details


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