2019 Cornerstone

The pinnacle, a standard bearer, unmatched, no matter how you describe it, there’s nothing like this Class A motorhome. It is truly one of the most spectacular vehicles on the road today. Every inch is meticulously designed and crafted, helping make it the best-selling model in the Cummins X engine category. Now’s your time to rule the road.


Ward = wardrobe

Lav = bathroom sink

Med = medicine cabinet

Ohc = overhead cabinets

Fridge = refrigerator

Micro = microwave

Exterior Graphics

Standards & Options


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


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

Heat, AC, Water & Power

Heating System Aqua-Hot® 450 diesel hydronic water and heating system with in-floor heat throughout and engine preheat
Air Conditioning 15,000-BTU low profile A/Cs (3) with heat pumps and condensation drain 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
Inverter 3,000 watt pure sine wave inverters (2)
Batteries L16 AGM batteries (4), (6v/390 amp hrs. ea.), Battery boost system
Power Management Premium surge protector transfer switch
Water Hose w/ Electric Reel Water hose with electric reel
Black Holding Tank Sprayer Black holding tank sprayer
Black Tank Management Sani-Con® Turbo macerator holding tank dump system with electric gate valves & manual back-up system
Water Monitoring SeeLevel™ tank monitoring system
Water Filtration City and tank water filtration system
Winterization Drain System Winterizing drain system


Stainless Steel Accents Executive Bus Armor 10" stainless steel trim
Clearance Accent Lighted, chrome clearance accent
Exterior 3M front protective film mask
Headlights LED high and low beam headlights
LED Fog Lights LED fog lights
Daytime Running Lights Daytime running lights
LED Lights LED marker lights, turn lights and license plate light
LED Docking Lights LED docking lights
Accent Lights LED accent lights on underside of slideout rooms passenger side
Third Brake Light LED third brake light
Keypad Handle Lighted grab handle with keypad system
Entrance Steps Deluxe concealed entry step / Lighted Entegra step
Entrance Door Aire-Secure™ travel locks for all pocket doors
Door Awning Girard power entrance door awning with LED lights
Window Awnings Girard Ultra window shades and slide-out awnings
Patio Awnings Roof mounted Girard Vision dual pitched patio awning w/ LED lights
Mirrors Chrome, heated, remote control, side-view Ramco mirrors with blind-spot indicators
Windows Frameless, tinted, dual-pane, Hehr safety-glass windows
Exterior Entertainment 40" Samsung LED HDTV and Bose Solo 5 sound bar on TV bracket with extend, tilt and swivel arm
Utility Center Exterior utility center, heated and enclosed with system monitor panel
Cargo Features Power Slideout cargo trays
Satellite Dish Winegard in-motion satellite dome with prep for Trav'ler satellite dish
TV Antenna Winegard Rayzar Automatic powered TV antenna
Engine Door Power engine door with manual override
Rear Mudflap Full-width rear mudflap, with chrome "Cornerstone" nameplate


Flooring Power flush stepwell cover
Visors & Privacy Shade Power front sun visors and privacy shade
Windshield Ultra-Vision one-piece wrap-around tinted windshield
Driver / Passenger Seats 6-way power, lumbar, air cooled, heated, leather driver and passenger seats with integrated 3-point belt
Start Push button start
Steering Wheel Wood-grain, leather-wrapped, tilt and telescoping steering wheel with integrated controls for radio, cruise, and wipers
Side Consoles Molded side consoles
Dash Valid 15" digital dash with selector knob
Monitoring System(s) Message center and monitoring systems included in Valid digital dash
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
Sound System JBL® premium audio sound system with amplifier, speakers and subwoofer
Leveling System Equalizer hydraulic automatic leveling system
Power Features Battery boost system
Pedals Powered adjustable foot pedals
Cameras "Total Vision" rear camera and digital side cameras
Additional Amenities Two dual USB ports


Lighting System VegaTouch pad system, for complete integration of coach controls
Lighting Dimmable LED recessed 12V lighting
Flooring High Gloss 12" x 24" porcelain tile hand laid with granite inlay design
Window Treatments Powered solar day and black out night shades
Television - Living Room Samsung® 50" HDTV
Television - Front Overhead Samsung® 32" LED HDTV in front overhead
Sound - Living Room Bose SoundTouch 300 sound system
DVD Systems Blu-ray players in living area & bedroom
Furniture Leather hide-a-bed(s)
Washer/Dryer Stacked washer and dryer
Central Vacuuming System Central vacuum system
Additional Storage In-step storage with pull-out tray
Electric Fireplace LED lit fireplace (45B and 45Y)


Kitchen Countertops Quartz countertops with stainless steel sink and dimmable LED accent lighting
Cabinet Extension Pullout countertop extension with drawers
Kitchen Backsplash Porcelain tile backsplash with glass design inlays and a ceramic border
Waste Basket Large deep drawer for waste basket with easy access trash chute (trash chute not available in 45F)
Dishwasher Dishwasher with wood raised panel door front
Cooktop Induction cooktop
Microwave Whirlpool Gold 1.9 cu. ft. convection microwave oven
Refrigerator Whirlpool residential refrigerator with ice maker and water dispenser
Vent Maxxair power vent


Television Samsung 32" LED HDTV in bedroom
Sound Bose Solo 5 sound bar in bedroom
Bedroom Mattress / Bedding Select Comfort® Sleep Number® king size mattress
Ceiling Fan Ceiling fan
Bedroom Wardrobe Large cedar-lined wardrobe with automatic lights (automatic light not available in 45F)
Nightstands Nightstands with USB ports and solid surface tops


Bathroom Countertop(s) Quartz countertop with integrated sinks and LED accent lighting
Toilet Thetford Tecma china toilets with push button flush
Bathroom Shower Porcelain tiled shower walls and floor with skylight and frameless glass shower door
Shower Seat Teak wood shower seat (Not available in 45F)
Bathroom Ventilation Maxxair Deluxe power vents


Collision Mitigation Spartan Advanced Protection System equipped with collision mitigation, adaptive cruise control & electronic stability control
Blind Spot Monitoring Blind Spot Monitoring System, tuned to detect objects within the lane of traffic on either side of the vehicle
Security System Security system with glass shatter sensors
Lights Porch light and motion sensor security lights
Smoke Alarm Smoke alarm
Carbon Monoxide Detector Carbon monoxide alarm
Security Safe Safe


Canadian Standards Optional
Fireplace LED lit fireplace standard (45B, 45Y)
Dishwasher Drawer Dishwasher Drawer Standard
Dinette Leather dinette booth (45A, 45B, 45W and 45Y)
Dinette Option 2 Leather Dinette Booth standard (45X)
Freestanding Table Option 1 Freestanding table with 4 chairs standard (N/A 45X)
Freestanding Table Option 2 Freestanding table with 4 chairs (45X)
Theater Seating Theater seating with power recliners and fixed center console
Satellite Dish - US Winegard Trav'ler satellite dish - DIRECTV
Satellite Dish - CA Winegard Trav'ler satellite dish - Shaw Direct
Solar Solar panels (Dual-100 watt)
Freezer Optional exterior freezer
Front Overhead TV Standard
Central Vacuum System Standard
WiFi Extender Antenna Winegard WIFI Extender with 4G/LTE

Décor Options

Entegra Coach peace of mind

2 years

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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