2026 Entegra Coach Cornerstone Reserve 45D Darknite Blue

2026 Entegra Coach Cornerstone Reserve 45D Darknite Blue

Step into luxury beyond your wildest dreams in the Cornerstone Reserve, the most exquisite diesel pusher to date from Entegra Coach. With a limited production run of only 20 coaches, the Cornerstone Reserve builds upon the legendary Cornerstone by adding upgraded features and styling to deliver an exclusive masterpiece unlike anything you’ve ever seen before. Designed for those who demand the extraordinary, the Cornerstone Reserve redefines what it means to travel in style and comfort.

Like the Cornerstone, the Cornerstone Reserve is built upon your choice of the Spartan K3 chassis or Freightliner SL chassis. Both chassis features a Cummins 605HP engine, side-mounted radiator, custom-tuned Koni shocks and the Valid™ Truline air leveling system for a powerful and smooth ride you won't find anywhere else. Two incredibly intricate paint schemes, Darknite Blue or Darknite Red, create an awe-inspiring look and make the Cornerstone Reserve stand out in a crowd.

Inside the cockpit, our cab-forward design features a 120-inch windshield, the largest in the industry, for an immersive view of the road. With a heads-up design, the newly updated Safe View dash features a 15-inch digital dash, 15-inch center console infotainment center and tri-pod steering wheel to keep everything at your fingertips while keeping your eyes on the road and hands on the wheel. Safety features include a collision mitigation system with blind-spot monitoring and the Delta Mobile Systems® aiDARS™ 1X active 360° surround view system. These amenities allow the Cornerstone Reserve to deliver the best driving experience in the industry.

Signature features of the Cornerstone Reserve include 50% larger windows for breathtaking views, premium quartz countertops, upgraded tile, and striking ceiling features. Custom Villa Italian leather furniture and upscale Café™ appliances complete the opulent living space, delivering a seamless blend of sophistication and functionality.

With residential hung-wall construction, 5-inch-thick wood floors, cabinets laid before tile installation and three layers of insulation, the true beauty of the Cornerstone is the incredible quality of its hand-built construction. These construction features add to the quiet ride of the Cornerstone and allow us to offer our customers the best warranty in the industry. With a two-year limited and 5-year structural warranty, you will feel true confidence and security in your Entegra Coach Cornerstone Reserve.

The Cornerstone Reserve is more than a motorhome—it’s an exclusive invitation to experience luxury at its finest.

Features May Include:

Standards 

CHASSIS

• Chassis: Spartan K3 raised-rail chassis
• Engine: Cummins 15 liter X15 turbocharged 605 HP engine with 1,950 lb. ft. torque at 1,150 RPM
• Transmission: Allison 4,000 MH 6-speed transmission
• Radiator: Side-mounted, parallel-airtiow radiator
• Alternator: 210 amp alternator
• Engine Block Heater: 1,500W engine block heater
• Engine Brake: Three-stage engine brake
• Front Axle: 20,000 lb. rating front axle with independent front suspension, integrated anti-sway bar and custom-tuned shocks.
• Rear Axle: Dana rear axle 20,000 lb. rating
• Tag Axle: Reyco Granning passive-steer tag axle with onee-touch manual air dump - 14,000 Ib. rating
• Braking System: All-wheel ABS disc brakes
• Rear Axle Ratio: 4.30 rear axle ratio
• Tires: Michelin 365/70R22.5 in. tires (front) and 315/80R22.5 in. tires (rear)
• Tire Pressure Monitoring: Tire pressure monitoring system (TPMS) with temperature monitoring
• Traction Control: Automatic traction control
• Leveling System: Equalizer hydraulic automatic coach leveling
• Air Leveling: Valid Truline air leveling system with auxiliary air compressor
• Air Connection: Remote air connection
• Chassis Battery: (2) 12V chassis batteries
• Fuel Tank: 175 gal fuel tank with dual tills
• DEF Tank: 15 gal. DEF tank with dual fills
• Tow Air Brake System: Spartan Safehaul tow vehicle air brake system
• Hitch: 20,000 lb. hitch with 7-pin plug

CONSTRUCTION

• Roof: 4 in. arched aluminum trusses filled with batt insulation and reflective Flexfoil topped with 3/8 in. plywood decking then one-piece fiberglass
• Walls: 2-1/2 in. exterior walls with Aluma-Tru™ welded tubular aluminum studs on 16 in. centers or less, filled with batt and Flexfoil insulation, then covered with high-gloss gelcoat fiberglass (R-16)
• Floor: 2 in. x 4 in, wood trusses on 16 in. centers or less filled with batt and Flexfoil insulation then topped with 3/4 in. 7-ply plywood decking (R-33)
• Frame: X-Bridge bracing welded into chassis frame
• Slideouts: Entegra Coach-exclusive Electra Glide flush-mounted 12V slideout system

HEAT, AC, WATER & POWER

• Heated Tanks: Aqua-Hot heated basement storage
• Generator: Onan 12.500W diesel generator, with automatic start, on powered slide-out tray
• Inverter: Victron 3,000W pure sine wave inverter with LED screen
• Batteries: (4) L16 AGM batteries (6V/390 amp hrs. ea.)
• Solar: (2) 200W solar panels
• Electrical Hookup: 50 amp power cord on electric powered reel
• Transfer Switch: Smart automatic transfer switch with surge protection
• Air Conditioning: (3) 15,000 BTU A/C units with heat pumps and condensation drain system
• Heating System: Aqua-Hot 600D hydronic water and heating system with in-floor heat throughout and engine preheat
• Black Tank Management: Sani-Con macerator holding tank dump system with power gate valves and manual backup
• Tank Flush: Black tank flush: Grey tank flush
• Tank Assist: Tilt tank dump
• Water Filtration: City and tank water filtration system
• Water Hook-Up: Hot and cold water hook-up in front cap area with 30 ft. quick-disconnect hose
• Water Softner: Water softener prep in driver-side compartment
• Water Hose w/ Electric Reel: Water hose with electric reel

EXTERIOR

• Front/Rear Cap: Insulated front and rear caps (R-24)
• Stainless Steel Accents: Executive Bus Armor 10 in stainless steel trim
• Engine Door: Power rear engine door with manual override
• Patio Awnings: Dual root-mounted Girard Vision dual-pitched patio awnings with LED lights
• Door Awning: Girard power entrance door awning with LED lights
• Slideout Awnings: Girard Ultra slideout awnings
• Windows: Frameless, dual-pane, tinted, safety-glass windows
• Keypad: Lit grab handle with doorbell and keypad system for keyless entry
• Entertainment: 43 in. Samsung QLED 4K UHD Smart TV with tilt, swivel, and extend adjustment; JBL soundbar with USB port and receptacle
• Mirrors:Blind-spot monitoring indicators in chrome, heated, remote-control side-view mirrors
• Exterior: Diamond Shield front protective flim mask
• Headlights: Automatic LED high and low beam headlights
• Fog Lights: Halogen fog lights
• Daytime Running Lights: Automatic daytime running lights
• LED Lights: LED marker lights, turn lights, license plate light, third brake light, accent lights and docking lights
• Accent Lights: LED accent lights under all slideout rooms
• Chrome Accents: LED-lit chrome clearance accent light
• Lights: Porch light and motion sensor security lights
• Rear Mudfisp: Mudfiap with chrome "Entegra Coach" nameplate
• Satellite Internet: Starlink satellite internet system
• Satellite Dish-US: Winegard TRAV LER satellite dish DIRECTV-standard with USA option
• Satellite Dish-CA: Winegard TRAV'LER Pro satellite dish Shaw TV-standard with CSA option
• Antenna: Winegard Rayzar Automatic powered TV antenna
• Wi-Fi: Winegard Wififlanger Wi-Fi extender
• Utility Center: Heated exterior utility center with 5 in. LED Firefly tank monitoring panel
• Cargo Features: (2) power slideout basement storage trays
• Freezer: 2.8 cu. ft, exterior refrigerator/freezer on slideout tray
• Baggage Doors: Push-button, power-unlatching baggage doors with LED indicator light
• Exterior Walls: Sikkens custom full-body paint
• Entrance Door: Removable screen on entry door

COCKPIT

• Collision Mitigation: Collision avoidance system with collision waming, adaptive cruise control and electronic stability control
• Additional Amenities: Bergstrom dual-zone HVAC system; Dual USB port and one 12V socket for charging
• Dash: Valid™ 15 in. digital dash with quad core graphics processor, on-board diagnostics and ability to display traditional instrument cluster, 360° camera system or GPS navigation
• Cameras: Delta Mobile Systems" aiDARS™ 1X active 360° surround view system with 14 smart radar sensors and 6 HD cameras displayed on digital dash screen
• Infotainment System(s):Valid infotainment system with 15 in. touchscreen, Sygic navigation, Bluetooth", Sirius XMT™ and AM/FM tuner, integrated camera control, house mode whole-coach audio distribution and integrated Vega Touch coach control
• Side Consoles: 4.3 in. infotainment control touchscreen in passenger console
• Driving Features: E-Z Steer™ adjustable power steering assist
• Steering Wheel: Leather steering wheel with integrated controls for screen selection, instrument cluster navigation, media source selection, cruise, wipers and Bluetooth" phone functionality
• Steering Column: Power tilt and telescoping steering column
• Sound System: JBL premium audio 11-speaker sound system with amplifier, speakers and DVC subwoofer
• Antenna: All-in-one automotive antenna for AM/FM/Sirius/GPS dash radio system
• Windshield: Ultra-Vision" one-piece wrap-around tinted windshield; Rain-sensing windshield wipers
• Driver/Passenger Seats: Heated and cooled leather driver and passenger seats with powered 6-way adjustment, lumbar, recline, footrest and massage functions
• Power Features: Powered driver's window, Powered flush stepwell cover
• Pedals: Powered adjustable brake and accelerator pedals
• Visors & Privacy Shade: Powered front sun visors and privacy shades

INTERIOR

• Television - Front Overhead: 32 in. Samsung QLED 4K UHD Smart TV in front overhead
• Command Center: Firefly multiplex system with 10 in. VegaTouch touchscreen for complete integration of coach controls, with remote monitoring and control (mobile app available)
• Switches: Spyder 3.5 in. touchscreen switches throughout
• Television - Living Room: 50 in. Samsung QLED 4K UHD Smart TV
• Sound - Living Room: Bose sound bar with subwoofer and universal remote control
• DVD Systems: Sony Blu-ray™ player
• Furniture: Premium leather Villa furniture
• Flooring: Hand-laid porcelain tiled floors
• Lighting: LED interior lighting
• Celling: Decorative ceiling feature with integrated accent lighting
• Window Treatments: Powered solar day and blackout night shades; LED accent lights in window valances
• Central Vacuuming System: Portable Shark vacuum cleaner, Dirt Devil central vacuum system with in-wall dust pan
• Interior Doors: Aire-Secure travel locks for all pocket doors
• Washer/Dryer: Stackable washer and dryer
• Cabinetry: Hardwood cabinets and stiles throughout; Soft-close dovetail drawers

KITCHEN

• Window: Window with push out lever operation and screen
• Refrigerator: Café™ ENERGY STAR 22.3 cu ft. 4-door refrigerator
• Cooktop: Induction cooktop with matching wood cover
• Microwave: Café™ 1.7 cu ft. convection microwave with air fryer function
• Dishwasher: Fisher & Paykel dishwasher
• Countertops: Quartz countertops with Blanco single-bowl granite sink and dimmable LED accent lighting
• Water Dispenser: Filtered water dispenser at kitchen sink
• Vent: Maxxair power vent exhaust fan with intake and touch screen control
• Storage: Pantry with pull-out shelves; Slide-out storage tray(s) in overhead cabinet

BEDROOM

• Bed: Personal Comfort A5 king-size mattress; Motion-activated LED lights in bed base
• Television: 43 in. Samsung Crystal UHD Smart TV in bedroom
• Sound: Bose sound bar with universal remote control
• DVD Systems: Sony Blu-ray™ player
• Celling Fan: Ceiling fan
• Nightstands: Nightstands with solid-surface tops
• Wardrobe: Automatic light in rear closet

BATHROOM

• Countertop(s): Quartz countertops with two sinks and dimmable LED accent lighting
• Shower: Porcelain tile shower walls and floor with skylight and frameless glass shower door
• Shower Seat: Teakwood shower seat
• Shower Head: Pivoting shower head and separate hand-held spray wand
• Water Saving System: Aqua View SHOWERMISER™ water saving system
• Toilet: Thetford macerator toilet in main bath: Thetford macerator toilet in mid bath
• Vent: Maxxair Deluxe power exhaust vent fan with intake

SAFETY

• Carbon Monoxide Detector: Carbon monoxide detector
• Smoke Alarm: Smoke alarm
• Security Safe: Storage safe

OPTIONS

• Chassis: Freightliner SL Chassis (605 HP)
• Media Center 1: Media center ILO sofa
• Dinette: Dinette booth ILO free-standing table and chairs
• Bathroom Sink:Double sinks in bathroom ILO single sink
• Dishwasher Drawer:Cabinet with two drawers ILO dishwasher
• Headboard: Wood headboard
• Area Rug: Area rug for living room
• Mattress: Sleepmade memory foam mattress
• Satellite Dish: Winegard In-Motion Satellite Dome ILO TRAVILER
• Satellite Dish - US: Winegard TRAV'LER Dish Network ILO Direct TV
• Sofa: 74" sofa ILO theater seating