Entegra Coach Cornerstone Motor Home Class A - Diesel


Power meets beauty in the Cornerstone Class A diesel motorhomes by Entegra Coach. Luxurious interiors, added safety features, and durable construction are just a few features that make the Cornerstone stand out above the rest!


Each model is constructed with 5-inch thick wood floors, three layers of insulation, and X-Bridge bracing welded in the chassis frame for added strength. Your comfort is met with heated, cooled, and massaging captain's seats, and the Valid infotainment system with a 15" touchscreen will allow you to maneuver the open road like a pro. The interior is packed with residential comforts, such as premium leather Crown Compass furniture throughout, hand-laid porcelain tiled floors, and solid surface countertops. Head outdoors to find Girard awnings, an exterior entertainment center, two 200W solar panels, and many more conveniences. 


The Cornerstone Class A diesel motorhome by Entegra Coach is the #1 selling luxury motorhome in the Cummins 605HP engine category and it's easy to see why; Choose yours today!

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Motor Home Class A - Diesel

  1. Bath and a Half, Outdoor Entertainment
    • Length: 44 ft 11 in
    • Slides: 4
    • Sleeps: 4

    8 Available Now!

  2. Bath and a Half, Outdoor Entertainment
    • Length: 44 ft 11 in
    • Slides: 4
    • Sleeps: 4

    7 Available Now!

  3. Bunkhouse, Bath and a Half
    • Length: 44 ft 11 in
    • Slides: 4
    • Sleeps: 7
  4. Bath and a Half, Outdoor Entertainment
    • Length: 44 ft 11 in
    • Slides: 4
    • Sleeps: 4

    7 Available Now!

  5. Outdoor Entertainment, Rear Bedroom
    • Length: 44 ft 11 in
    • Slides: 4
    • Sleeps: 4

    2 Available Now!

Showing 1 - 5 of 5

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Cornerstone Features:

Standard Features (2025)



  • Spartan® K3 raised-rail chassis
  • Cummins® 15 liter X15 turbocharged 605 HP engine 1,950 lb. ft. torque at 1,150 RPM
  • Allison® 4,000 MH 6-speed transmission
  • Side-mounted, parallel-airflow radiator
  • 210 amp alternator
  • 1,500 watt engine block heater
  • Three-stage engine brake
  • Meritor® front axle with independent front suspension, integrated anti-sway bar and custom-tuned Koni® shocks- 20,000 lb. rating
  • Dana® rear axle- 20,000 lb. rating
  • Reyco® Granning® passive steer tag axle with air dump- 14,000 lb. rating
  • All-wheel ABS disc brakes
  • 4.30 rear axle ratio
  • Michelin® 365/70R 22.5” tires (front) and 315/80R 22.5” tires (rear)
  • Tire pressure monitoring system (TPMS) with temperature monitoring
  • Automatic traction control
  • Equalizer hydraulic automatic coach leveling
  • Valid Truline air leveling system with auxiliary air compressor
  • Remote air connection
  • (2) 12V chassis batteries
  • 175 gal. fuel tank with dual fills
  • 15 gal. DEF tank with dual fills 
  • Spartan® Safehaul tow vehicle air brake system
  • 20,000 lb. hitch with 7/4-pin plug


  • 4 in. arched aluminum trusses filled with batt insulation and reflective Flexfoil® topped with 3/8 in. plywood decking then one-piece fiberglass
  • 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)
  • 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)
  • X-Bridge™ bracing welded into chassis frame
  • Entegra-exclusive Relia-Torque flush-mounted 12V slideout system

Heat, AC, Water & Power

  • Aqua-Hot® heated basement storage
  • Onan® 12,500W diesel generator, with automatic start, on powered slide-out tray
  • (4) L16 AGM batteries (6V/390 amp hrs. ea.)
  • (2) 200W solar panels
  • 50 amp power cord on electric powered reel
  • Smart automatic transfer switch with surge protection
  • (3) 15,000 BTU A/C units with heat pumps and condensation drain system
  • Aqua-Hot® 600D hydronic water and heating system with in-floor heat throughout and engine preheat
  • Sani-Con® macerator holding tank dump system with power gate valves and manual backup
  • Black tank flush; Grey tank flush
  • Tilt tank dump
  • City and tank water filtration system
  • Hot and cold water hook-up in front cap area with 30 ft. quick-disconnect hose
  • Water hose with electric reel
  • Victron 3,000W pure sine wave inverter with LED screen
  • Water softener prep in driver-side compartment


  • Insulated front and rear caps (R-24)
  • Heated exterior utility center with 5 in. LED Firefly tank monitoring panel
  • Executive Bus Armor 10 in. stainless steel trim
  • Power rear engine door with manual override
  • Dual roof-mounted Girard® Vision dual-pitched patio awnings with LED lights
  • Girard® power entrance door awning with LED lights
  • Girard® Ultra slideout awnings
  • Girard® Ultra power window awnings
  • Frameless, dual-pane, tinted, safety-glass windows
  • Lit grab handle with doorbell and keypad system for keyless entry
  • 43 in. Samsung® QLED 4K UHD Smart TV with tilt, swivel, and extend adjustment; JBL® radio and speakers with USB port and receptacle
  • Blind-spot monitoring indicators in chrome, heated, remote-control side-view mirrors
  • Diamond Shield™ front protective film mask
  • Automatic LED high and low beam headlights and fog lights
  • Halogen fog lights
  • Automatic daytime running lights
  • LED marker lights, turn lights, license plate light, third brake light, accent lights and docking lights
  • LED accent lights under passenger slideout rooms
  • Porch light and motion sensor security lights
  • Mudflap with chrome "Entegra" nameplate
  • Starlink satellite internet system
  • Winegard® TRAV’LER satellite dish DIRECTV® - standard with USA option
  • Winegard® TRAV’LER Pro satellite dish Shaw TV - standard with CSA option
  • Winegard® Rayzar Automatic powered TV antenna
  • Winegard® WiFi Ranger™ Wi-Fi extender
  • (2) power slideout basement storage trays
  • 2.8 cu. ft. exterior refrigerator/freezer on slideout tray
  • Push-button, power-unlatching baggage doors with LED indicator light
  • Sikkens custom full-body paint
  • LED-lit chrome clearance accent light
  • Removable screen on entry door


  • 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
  • Delta Mobile Systems® aiDARS™ 1X active 360° surround view system with 14 smart radar sensors and 6 HD cameras displayed on digital dash screen
  • Valid™ infotainment system with 15 in. touchscreen, Sygic navigation, Bluetooth®, Sirius XM™ and AM/FM tuner, integrated camera control, house mode whole-coach audio distribution and integrated VegaTouch coach control
  • 4.3 in. infotainment control touchscreen in passenger console
  • E-Z Steer™ adjustable power steering assist
  • Leather steering wheel with integrated controls for screen selection, instrument cluster navigation, media source selection, cruise, wipers and Bluetooth® phone functionality
  • Power tilt and telescoping steering column
  • JBL® premium audio 11-speaker sound system with amplifier, speakers and DVC subwoofer
  • All-in-one automotive antenna for AM/FM/Sirius/GPS dash radio system
  • Ultra-Vision® one-piece wrap-around tinted windshield; Rain-sensing windshield wipers
  • Heated and cooled leather driver and passenger seats with powered 6-way adjustment, lumbar, recline, footrest and massage functions
  • Powered driver's window; Powered flush stepwell cover
  • Powered adjustable brake and accelerator pedals
  • Powered front sun visors and privacy shades
  • Collision avoidance system with collision warning, adaptive cruise control and electronic stability control
  • Bergstrom dual-zone HVAC system; Dual USB port and one 12V socket for charging


  • LED-lit fireplace with 5,000-BTU heating element (45B, 45Z)
  • 32" Samsung® QLED 4K UHD Smart TV in front overhead
  • Firefly multiplex system with 10” VegaTouch touchscreen for complete integration of coach controls, with remote monitoring and control (mobile app available)
  • Spyder 3.5 in. touchscreen switches throughout
  • 50” Samsung® QLED 4K UHD Smart TV
  • Bose® sound bar with subwoofer and universal remote control
  • Sony® Blu-ray™ player
  • Premium leather Crown Compass furniture
  • Hand-laid porcelain tiled floors
  • LED interior lighting
  • Decorative ceiling feature with integrated accent lighting
  • Powered solar day and blackout night shades
  • Portable Shark vacuum cleaner
  • Aire-Secure™ travel locks for all pocket doors
  • Bar area with beverage chiller and rain glass upper cabinet door with LED accent lighting (45R only)
  • Bunks with industry-exclusive 300 lb. capacity each (45R)
  • Splendide stackable washer and dryer


  • Window with push out lever operation and screen
  • Stainless steel residential refrigerator 
  • Induction cooktop with matching wood cover
  • 1.9 cu. ft. convection microwave oven
  • Fisher and Paykel Dishwasher
  • Solid-surface countertops with Blanco single bowel granite sink and dimmable LED accent lighting
  • Filtered water dispenser at kitchen sink
  • Maxxair power vent exhaust fan with intake and touch screen control
  • Large deep drawer for waste basket with easy access trash chute (trash chute not available in 45D, 45R)
  • Pantry with pull-out shelves; slide-out storage tray(s) in overhead cabinet


  • Personal Comfort A5 king-size mattress
  • 32” Samsung® LED 4K UHD Smart TV
  • Bose® sound bar with universal remote control
  • Sony Blu-ray player
  • Ceiling fan
  • Nightstands with solid-surface tops
  • Automatic light in rear closet


  • Solid-surface countertops with integrated sink and dimmable LED accent lighting
  • Porcelain tile shower walls and floor with skylight and frameless glass shower door
  • Teakwood shower seat 
  • Pivoting shower head and separate hand-held spray wand
  • Aqua View Showermiser water saving system
  • Thetford macerator toilet in main bath; Thetford macerator toilet in mid bath (45D, 45R, 45W); Thetford toilet in mid bath (45B)
  • Maxxair® Deluxe power exhaust vent fan with intake


  • Carbon monoxide detector
  • Smoke alarm
  • Security Safe


  • Theater seating with power recliners and fixed center console (45R)
  • hide-a-bed sofa ILO 100" power reclining 3-cushion sofa (45B, 45Z )
  • Dinette booth ILO free-standing table and chairs (45B, 45D, 45W, 45Z)
  • Fireplace/TV/entertainment center and work station IPO sofa (45D, 45W)
  • Sleepmade memory foam mattress
  • Winegard® in-motion satellite dome ILO Winegard® TRAV’LER
  • Winegard® TRAV’LER satellite dish Dish Network® ILO DIRECTV®
  • Freightliner SL chassis ILO Spartan K3 chassis
  • Cabinet with two drawers ILO dishwasher
  • Living Room and Bathroom Area Rugs
  • Wood headboard
  • Canadian standards (CSA)
  • Hide-a-bed sofa and standard sofa ILO power theater seating and hide-a-bed sofa (45D, 45W)

Please see us for a complete list of features and available options!

All standard features and specifications are subject to change.

All warranty info is typically reserved for new units and is subject to specific terms and conditions. See us for more details.

Due to the current environment, our features and options are subject to change due to material availability. 




Entegra Coach

In the spring of 2008, Entegra Coach became a member of the Jayco family of companies. Ever since, we've taken great pride in the details—and each luxury motorhome we build embodies that principle.


We started building luxury motorcoaches one at a time—with a superior foundation, unrelenting attention to detail and old-world craftsmanship, unmatched engineering innovation, rock-solid construction and a ride that's as smooth and quiet as it is invigorating and well-appointed.


In 2018, our pursuit of the superior luxury motorhome expanded beyond diesel Class A coaches to gas Class As and Class Cs. By building on experience and listening to customers, we're making the Entegra Coach luxury experience a reality for more travelers than ever. As always, we back each coach with personalized customer service and coverage that is unmatched in the industry.


So from the moment you drive off the lot, you're not only an owner—you're a member of the family