2015 Cornerstone

In a class of its own

You'll rule the road thanks to the 2015 Cornerstone's Cummins ISX 600 HP turbocharged engine. And with Cornerstone's well-appointed interiors, you'll rule it like a king: Enjoy quartz countertops, heated porcelain bathroom flooring, a cedar-lined walk-in wardrobe and gourmet kitchen. 

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Ward = wardrobe

Lav = bathroom sink

Med = medicine cabinet

Ohc = overhead cabinets

Fridge = refrigerator

Micro = microwave

Exterior Graphics

Standards & Options


Air Connection Remote air connection
Alternator 210-amp alternator
Braking System Air Disc brakes on front and rear; All-wheel ABS brakes; Three-stage Jake brake; Pre-wired for electric brake controller
Chassis Spartan K3 chassis
Chassis Battery 2
DEF Tank 15-gallon DEF tank
Engine Cummins 15 liter ISX turbocharged 600 HP engine 1,950 lb-ft torque at 1,200 RPM
Engine Block Heater Yes
Front Axle Reyco Granning front axle 20,000-lb. wide track
Front Suspension Reyco Granning IFS independent front air suspension
Fuel Tank 150-gal. fuel tank (dual fill)
Hitch 20,000-lb. hitch with 7-pin plug
Radiator Side-mounted radiator
Rear Axle Rear axle 20,000-lb., tag axle 14,000-lb.
Rear Axle Ratio 4.30 "Quiet-Gear" rear axle ratio
Rear Suspension Ridewell 246 rear air suspension
Shocks Front/Rear; 60 mm heavy duty
Tag Axle Tag axle auto weight release
Tires Michelin 365/70R 22.5" tires (Front) + 315/80R 22.5" tires (Rear)
Traction Control Automatic Traction Control
Transmission Allison 4000 MH 6-speed transmission
Turning Radius 55-degree wheel cut


Floor 2" x 4" floor truss construction; 3/4" (7) ply plywood main floor decking
Frame X-Bridge frames welded into chassis frame; Steel-reinforced front cap and windshield frame
Insulation Polar Pack insulation with reflective Flexfoil floor (R-33), roof (R-24), sidewalls (R-16), front and end caps (R-22)
Roof One-piece, gel-coat fiberglass, 4-1/2" arched aluminum truss roof; Fully decked with 3/8" plywood
Slideouts Frameless, flush-mounted slideout rooms; Electric-powered slideouts
Underbelly Enclosed, insulated and heated floor, and thermostat controlled heating in storage area
Walls Aluma-Tru Superstructure construction on 16" centers; 2-1/2" wall with welded tubular construction; Sidewalls bolted to chassis frame structure; Smooth high-gloss, gel-coat fiberglass exterior walls

Heat, AC, Water & Power

Air Conditioning 15,000-BTU low profile central A/Cs (3) with heat pump, digital thermostat and drain tubes with ducted returns
Batteries Holding and fresh water tanks, radiant-heated; Black holding tank sprayer
Black Holding Tank Sprayer Total coach dual system water filter
Black Tank Management SeeLeveL tank monitoring system; Systems monitor panel
Electrical Hookup 2,800-watt and 2,000-watt Pure Sine wave inverters with (8) 6V glass mat batteries; 50-amp electric service; 50-amp quick-connect power cord with power reel; Surge protector transfer switch; (2) glass mat batteries
Generator Onan 12,500-watt diesel generator with auto gen start and A/C shore sensor
Heating System Aqua-Hot 450 Diesel hydronic water and heating system with in-floor heat throughout
Power Management Hookup for city water; Power auto rewind water hose
Water Hose w/ Electric Reel 12V on-demand water pump with two switch locations
Water Filtration Yes
Water Monitoring Yes


Cargo Features Pass-through storage compartments with powered slideout cargo trays (2); Side-hinged baggage doors with chrome door handles; Carpet trunk liner in cargo bays
Door Awning Roof-integrated, 2-stage powered roof awning with LED lights; Carefree power entrance door awning with LED lights; Carefree slideout and window awnings
Entrance Door Aire-Secure travel locks for all passage doors; Lighted heavy-duty grab handle with keypad system; Power bay lock integrated with key fob and touch pad
Entrance Steps Electric-powered, double-step entrance
Exterior Full-body premium paint package; 3M front protective film mask
Exterior Entertainment Samsung 40" LED HDTV with Sony Dual DIN CD/DVD player and dual speakers
Mirrors Chrome, heated, remote control, side-view mirrors
Rear Mudflap Full-width rear mudflap
Satellite Dish Winegard in-motion, dome, roof-mounted satellite dish
TV Antenna Yes
Windows Frameless, tinted, dual-pane, safety-glass windows


Cameras Color back-up camera and monitor. Side cameras with turn signals
Driver / Passenger Seats 8-way power, lumbar, heated, leather driver and passenger seats with integrated 3-point lap and shoulder safety belts; Passenger seat power footrest
Flooring High gloss 12" x 24" porcelain tile with granite inlay design; Color-coordinated carpeted floormats
Infotainment System(s) Touch-screen AM/FM/CD/DVD with Rand McNally GPS navigation, Bluetooth and (4) speakers; Sirius radio and tuner; CB prep with antenna; JBL Premium sound dash speakers; Samsung 32" LED HDTV
Monitoring System(s) Spartan Message Center with LCD display featuring: odometer, tachometer, instantaneous fuel economy, fuel remaining, outside air temp., coolant temp., engine oil temp. and pressure, transmission temp., turbo boost pressure, air pressure, diagnostic functions, fault codes, service reminders, percentage of engine load, trip meter, speed and voltage
Power Features 12V auxiliary in-dash receptacle - (1) in center, (1) at driver's area, (1) at passenger's area; Battery boost switch; Chassis battery disconnect; Auxiliary start switch; Touch control for hydraulic leveling jack system; Powered flush stepwell cover
Steering / Driving Features VIP SmartWheel steering wheel (wood-grain, leather-wrapped) with tilt and telescoping steering column and integrated controls for radio, cruise and wipers; Adjustable foot pedals
Trip Management System Yes
Visors & Privacy Shade Powered front and roller side sun visors and privacy shades
Windshield Ultra-Vision one-piece wrap-around tinted windshield


Central Vacuuming System 2-panel residential-style solid hardwood passage doors
Electric Fireplace Yes
Flooring High gloss 12" x 24" porcelain tile floor
Furniture Leather furniture package; Leather hide-a-bed sofa
Lighting Decorative oil rubbed bronze lighting throughout; LED recessed 12V lighting; Multiplex lighting; Lights at entrance steps
Window Treatments Fabric and wood-covered box valances with lambrequin legs; Individually-operated, power day/night solar roller shades throughout
Washer/Dryer Yes


Cabinet Extension Pullout cabinet extension with countertop
Cooktop Flush-mounted, electric 2-burner induction cooktop
Cutting Board Yes
Dishwasher Dishwasher drawer
Kitchen Countertops Quartz surface countertops with integrated stainless steel sink
Kitchen Backsplash Porcelain tile backsplash with glass design inlays
Microwave Samsung 1.7 cu. ft. convection microwave oven with carousel
Refrigerator Samsung residential 23 cu. ft. refrigerator with ice maker and water dispenser
Silverware Drawer Silverware drawer, divided for utensils
Waste Basket Large deep drawer with waste basket


Bedroom Mattress / Bedding King Select Comfort Sleep Number air mattress; Quilted bedspread
Bedroom Wardrobe Large cedar-lined wardrobe with hardwood doors with mirrors


Bathroom Countertop(s) Quartz countertops with integrated sink
Bathroom Shower Caramel Glazed Maple
Bathroom Shower Door Porcelain tile shower pan and walls with skylight; Frameless, full-view, glass shower surround
Bathroom Ventilation Power vent with thermostat and rain cover


Carbon Monoxide Detector Yes
Lights 2 motion sensor security lights
Security System Security system with glass shatter sensors
Smoke Alarm Yes


Canadian Standards Yes
Freezer Dual 100-watt
Satellite Dish - US Winegard Trav'ler satellite dish with DIRECTV; Shaw Direct Canada Satellite TV

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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