THE QUIETEST RIDING, BEST HANDLING COACH ON THE MARKET TODAY. PERIOD.
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.
Brochure
Product Videos
Floorplans
Ward = wardrobe
Lav = bathroom sink
Med = medicine cabinet
Ohc = overhead cabinets
Fridge = refrigerator
Micro = microwave
2020 Cornerstone|45A
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Specs
| Gross Vehicle Weight Rating (lbs) | 54000 |
| Gross Combined Weight Rating (lbs) | 74000 |
| Front Gross Axle Weight Rating (lbs) | 20000 |
| Rear Gross Axle Weight Rating (lbs) | 20000 |
| Tag Axle Gross Weight Rating (lbs) | 14000 |
| Exterior Length | 44' 11" |
| Exterior Width | 101" |
| Exterior Height with A/C and Satellite | 12' 8" |
| Interior Height | 84" |
| Fresh Water Capacity (gals) | 100 |
| Grey Waste Water Capacity (gals) | 62 |
| Black Waste Water (gals) | 41 |
| Fuel Tank Capacity (gals) | 150 |
| Furnace (BTU Output) | 65,600 Aqua-Hot |
| Wheel Base | 320 |
2020 Cornerstone|45B
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Specs
| Gross Vehicle Weight Rating (lbs) | 54000 |
| Gross Combined Weight Rating (lbs) | 74000 |
| Front Gross Axle Weight Rating (lbs) | 20000 |
| Rear Gross Axle Weight Rating (lbs) | 20000 |
| Tag Axle Gross Weight Rating (lbs) | 14000 |
| Exterior Length | 44' 11" |
| Exterior Width | 101" |
| Exterior Height with A/C and Satellite | 12' 8" |
| Interior Height | 84" |
| Fresh Water Capacity (gals) | 100 |
| Grey Waste Water Capacity (gals) | 62 |
| Black Waste Water (gals) | 41 |
| Fuel Tank Capacity (gals) | 150 |
| Furnace (BTU Output) | 65,600 Aqua-Hot |
| Wheel Base | 320 |
2020 Cornerstone|45F
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Specs
| Gross Vehicle Weight Rating (lbs) | 54000 |
| Gross Combined Weight Rating (lbs) | 74000 |
| Front Gross Axle Weight Rating (lbs) | 20000 |
| Rear Gross Axle Weight Rating (lbs) | 20000 |
| Tag Axle Gross Weight Rating (lbs) | 14000 |
| Exterior Length | 44' 11" |
| Exterior Width | 101" |
| Exterior Height with A/C and Satellite | 12' 11" |
| Interior Height | 84" |
| Fresh Water Capacity (gals) | 100 |
| Grey Waste Water Capacity (gals) | 62 |
| Black Waste Water (gals) | 41 |
| Fuel Tank Capacity (gals) | 150 |
| Furnace (BTU Output) | 65,600 Aqua-Hot |
| Wheel Base | 320 |
2020 Cornerstone|45W
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Specs
| Gross Vehicle Weight Rating (lbs) | 54000 |
| Gross Combined Weight Rating (lbs) | 74000 |
| Front Gross Axle Weight Rating (lbs) | 20000 |
| Rear Gross Axle Weight Rating (lbs) | 20000 |
| Tag Axle Gross Weight Rating (lbs) | 14000 |
| Exterior Length | 44' 11" |
| Exterior Width | 101" |
| Exterior Height with A/C and Satellite | 12' 8" |
| Interior Height | 84" |
| Fresh Water Capacity (gals) | 100 |
| Grey Waste Water Capacity (gals) | 62 |
| Black Waste Water (gals) | 41 |
| Fuel Tank Capacity (gals) | 150 |
| Furnace (BTU Output) | 65,600 Aqua-Hot |
| Wheel Base | 320 |
2020 Cornerstone|45X
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Specs
| Gross Vehicle Weight Rating (lbs) | 54000 |
| Gross Combined Weight Rating (lbs) | 74000 |
| Front Gross Axle Weight Rating (lbs) | 20000 |
| Rear Gross Axle Weight Rating (lbs) | 20000 |
| Tag Axle Gross Weight Rating (lbs) | 14000 |
| Exterior Length | 44' 11" |
| Exterior Width | 101" |
| Exterior Height with A/C and Satellite | 12' 8" |
| Interior Height | 84" |
| Fresh Water Capacity (gals) | 100 |
| Grey Waste Water Capacity (gals) | 62 |
| Black Waste Water (gals) | 41 |
| Fuel Tank Capacity (gals) | 150 |
| Furnace (BTU Output) | 65,600 Aqua-Hot |
| Wheel Base | 320 |
2020 Cornerstone|45Y
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Specs
| Gross Vehicle Weight Rating (lbs) | 54000 |
| Gross Combined Weight Rating (lbs) | 74000 |
| Front Gross Axle Weight Rating (lbs) | 20000 |
| Rear Gross Axle Weight Rating (lbs) | 20000 |
| Tag Axle Gross Weight Rating (lbs) | 14000 |
| Exterior Length | 44' 11" |
| Exterior Width | 101" |
| Exterior Height with A/C and Satellite | 12' 8" |
| Interior Height | 84" |
| Fresh Water Capacity (gals) | 100 |
| Grey Waste Water Capacity (gals) | 62 |
| Black Waste Water (gals) | 41 |
| Fuel Tank Capacity (gals) | 150 |
| Furnace (BTU Output) | 65,600 Aqua-Hot |
| Wheel Base | 320 |
All Floorplans
2020 Cornerstone | 45A
2020 Cornerstone | 45B
2020 Cornerstone | 45F
2020 Cornerstone | 45W
2020 Cornerstone | 45X
2020 Cornerstone | 45Y
360°
Virtual Floorplan Showings and Product Specifics Are Subject to Change Without Notice
Exterior Graphics
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Standards & Options
Chassis
| Chassis | Spartan K3 raised rail chassis |
| Engine | Cummins 15 liter 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 | Independent front air suspension |
| Rear Suspension | Dana 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 | Valid 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 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 |
Construction
| Frame | X-bridge frames welded into chassis frame |
| Underbelly | Heated basement storage area |
| 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 |
| Slideouts | Flush-mounted electric-powered slideout rooms with both VegaTouch and separate rocker switch controls |
| Roof | One-piece fiberglass roof with 3/8" plywood decking and 4" arched aluminum roof truss |
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.) |
| Power Management | Premium surge protector transfer switch |
| Water Hose w/ Electric Reel | Water hose with electric reel |
| Tank Flush | Black holding tank sprayer |
| Black Tank Management | Macerator holding tank dump system with electric gate valves, & manual back-up system |
| Water Monitoring | Trutank ultrasonic tank monitoring system displayed on VegaTouch screen |
| Water Filtration | City and tank water filtration system |
| Winterization Drain System | Winterizing drain system |
Exterior
| Exterior Walls | 2- 1/2" exterior wall with welded tubular aluminum construction and high-gloss, gel-coat fiberglass |
| Front/Rear Cap | Steel-reinforced front cap and windshield frame |
| Stainless Steel Accents | Executive Bus Armor 10" stainless steel trim |
| Clearance Accent | LED lit chrome clearance accent light |
| Exterior | 3M front protective film mask |
| Headlights | LED high and low beam headlights |
| Fog Lights | LED fog lights |
| LED Lights | LED marker lights, turn lights, accent lights and license plate light |
| Docking Lights | LED docking lights |
| Keypad | Lighted grab handle with keypad system |
| Door Awning | Girard power entrance door awning with LED lights |
| Window Awnings | Girard Ultra window shade awnings |
| Patio Awnings | Roof mounted Girard Vision dual pitched patio awnings with LED lights |
| Mirrors | Chrome, heated, remote control, Ramco side-view mirrors with blind-spot indicators |
| Windows | Hehr frameless, tinted, dual-pane, safety-glass windows |
| Entertainment | Samsung 40" 4K UHD Slim, Smart TV and Bose Solo 5 sound bar on TV bracket with extend, tilt and swivel arm |
| Utility Center | Exterior heated utility center with 5" Firefly system monitor panel |
| Cargo Features | Power slide-out cargo trays; 2.8 cu. ft. exterior Dometic refrigerator/ freezer on slide-out tray |
| 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 |
| Lights | Porch light and motion sensor security lights |
| Slideout Awnings | Girard Ultra slide-out awnings |
| Satellite Dish - CA | Winegard Trav'ler satellite dish Shaw TV - standard w/ CSA option |
| Satellite Dish - US | Winegard Trav'ler satellite dish DIRECTV - standard w/ USA option |
Cockpit
| Visors & Privacy Shade | Power front sun visors and privacy shade |
| Windshield | Ultra-Vision one-piece wrap-around tinted windshield |
| Driver / Passenger Seats | Villa 6-way power, lumbar, air cooled, heated, leather driver and passenger seats with integrated seatbelt |
| Start | Push button start |
| Steering Wheel | 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 |
| Dash | Valid 15" digital dash with selector knob and three selection main screens |
| Monitoring System(s) | Blind spot monitoring system displayed on digital dash screen |
| 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 DVC sub-woofer |
| Pedals | Power adjustable brake and accelerator pedals |
| Cameras | Xite 360 camera system that displays on digital dash screen |
| Additional Amenities | Two dual USB ports and 12v socket for charging |
| Blind Spot Monitoring | Blind spot monitoring system displayed on digital dash screen |
Interior
| Lighting System | 10" VegaTouch touchpad system, for complete integration of coach controls/ mobile app control also |
| Lighting | Premium LED 12V recessed ceiling lighting |
| Flooring | Hand laid 16" x 32" porcelain tile floor |
| 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 |
| DVD Systems | Samsung HD Blu-ray player |
| Furniture | Villa Italian leather furniture |
| Washer/Dryer | Whirlpool stacked washer and dryer |
| Central Vacuuming System | Central vacuum system |
| Electric Fireplace | LED lit fireplace with 1500w heating element (45B and 45Y) |
| Interior Doors | Aire-Secure travel locks for all pocket doors |
Kitchen
| Countertops | Quartz countertops with stainless steel sink and dimmable LED accent lighting |
| 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 with matching wood cover |
| 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 |
Bedroom
| Television | Samsung 32" LED Slim 1080P Smart TV |
| Sound | Bose Solo 5 sound bar |
| Bed | Select Comfort Sleep Number king size mattress |
| Nightstands | Nightstands with USB ports and quartz tops |
| Ceiling Fan | Ceiling fan |
| Wardrobe | Large cedar-lined wardrobe with LED lit, motion activated closet rod |
| DVD Systems | Samsung Blu-ray player |
Bathroom
| Countertop(s) | Quartz countertop with integrated glass sinks and LED accent lighting |
| Toilet | Thetford Tecma china toilets with push button flush (45A, 45F, 45W) |
| Shower | Porcelain tiled shower walls and floor with skylight and frameless glass shower door |
| Shower Seat | Teakwood shower seat (Not available in 45F) |
| Vent | Maxxair Deluxe power exhaust vent fan with intake |
| Shower Head | Pivoting shower head and separate hand held spray wand |
Safety
| Security System | Security system with glass shatter sensors |
| Smoke Alarm | Smoke alarm |
| Carbon Monoxide Detector | Combination carbon monoxide detector and gas alarm |
| Security Safe | Safe |
Options
| Canadian Standards | CSA Optional |
| Dinette | Booth dinette passenger side (45A) |
| Dinette Option 2 | Booth dinette driver side (45B, 45W and 45Y) |
| Freestanding Table | Free standing table with 4 chairs driver side (45X) |
| Theater Seating | 100" theater seat passenger side (45B and 45Y) |
| Solar | Solar panels (Dual-100 watt) with Morningstar SunSaver Duo solar panel charge controller |
| WiFi Extender Antenna | Winegard WIFI extender with 4G/LTE |
| Reclining Sofa | 100" reclining sofa 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) |
| Satellite Dish | Winegard in-motion dome, roof mounted satellite dish |
Décor Options
Entegra Coach peace of mind
2-year warranty and 5-year structural warranty
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 limited warranty and a 5-year structural limited warranty.
Detail
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.
